Change compute node to worker node personality

This update replaced the compute personality & subfunction
to worker, and updated internal and customer visible
references.

In addition, the compute-huge package has been renamed to
worker-utils as it contains various scripts/services that
used to affine running tasks or interface IRQ to specific CPUs.
The worker_reserved.conf is now installed to /etc/platform.

The cpu function 'VM' has also been renamed to 'Application'.

Tests Performed:
Non-containerized deployment
AIO-SX: Sanity and Nightly automated test suite
AIO-DX: Sanity and Nightly automated test suite
2+2 System: Sanity and Nightly automated test suite
2+2 System: Horizon Patch Orchestration
Kubernetes deployment:
AIO-SX: Create, delete, reboot and rebuild instances
2+2+2 System: worker nodes are unlock enable and no alarms

Story: 2004022
Task: 27013

Change-Id: I0e0be6b3a6f25f7fb8edf64ea4326854513aa396
Signed-off-by: Tao Liu <tao.liu@windriver.com>
This commit is contained in:
Tao Liu
2018-12-11 12:13:44 -05:00
parent 301e310b67
commit b33e542ca0
17 changed files with 1923 additions and 0 deletions

6
utilities/worker-utils/.gitignore vendored Normal file
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!.distro
.distro/centos7/rpmbuild/RPMS
.distro/centos7/rpmbuild/SRPMS
.distro/centos7/rpmbuild/BUILD
.distro/centos7/rpmbuild/BUILDROOT
.distro/centos7/rpmbuild/SOURCES/worker-utils*tar.gz

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SRC_DIR="worker-utils"
COPY_LIST="$SRC_DIR/LICENSE"
TIS_PATCH_VER=1

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Summary: Initial worker node resource reservation and misc. utilities
Name: worker-utils
Version: 1.0
Release: %{tis_patch_ver}%{?_tis_dist}
License: Apache-2.0
Group: base
Packager: Wind River <info@windriver.com>
URL: unknown
Source0: %{name}-%{version}.tar.gz
Source1: LICENSE
BuildRequires: systemd-devel
Requires: systemd
Requires: python
Requires: /bin/systemctl
%description
Initial worker node resource reservation and misc. utilities
%define local_bindir /usr/bin/
%define local_etc_initd /etc/init.d/
%define local_etc_platform /etc/platform/
%define local_etc_goenabledd /etc/goenabled.d/
%define debug_package %{nil}
%prep
%setup
%build
make
%install
make install BINDIR=%{buildroot}%{local_bindir} \
INITDDIR=%{buildroot}%{local_etc_initd} \
GOENABLEDDIR=%{buildroot}%{local_etc_goenabledd} \
PLATFORMCONFDIR=%{buildroot}%{local_etc_platform} \
SYSTEMDDIR=%{buildroot}%{_unitdir}
%post
/bin/systemctl enable affine-platform.sh.service >/dev/null 2>&1
%clean
rm -rf $RPM_BUILD_ROOT
%files
%defattr(-,root,root,-)
%{local_bindir}/*
%{local_etc_initd}/*
%{local_etc_goenabledd}/*
%config(noreplace) %{local_etc_platform}/worker_reserved.conf
%{_unitdir}/affine-platform.sh.service

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#
# SPDX-License-Identifier: Apache-2.0
#
BINDIR ?= /usr/bin
INITDDIR ?= /etc/init.d/
GOENABLEDDIR ?= /etc/goenabled.d/
PLATFORMCONFDIR ?= /etc/platform
SYSTEMDDIR ?= /usr/lib/systemd/system/
all:
python -m compileall topology.py
install:
install -d -m 755 $(BINDIR)
install -d -m 755 $(INITDDIR)
install -d -m 755 $(GOENABLEDDIR)
install -d -m 755 $(PLATFORMCONFDIR)
install -d -m 755 $(SYSTEMDDIR)
install -p -D -m 755 affine-platform.sh $(INITDDIR)/affine-platform.sh
install -p -D -m 755 cpumap_functions.sh $(INITDDIR)/cpumap_functions.sh
install -p -D -m 755 task_affinity_functions.sh $(INITDDIR)/task_affinity_functions.sh
install -p -D -m 755 ps-sched.sh $(BINDIR)/ps-sched.sh
install -p -D -m 755 topology.py $(BINDIR)/topology.py
install -p -D -m 755 topology.pyc $(BINDIR)/topology.pyc
install -p -D -m 755 affine-interrupts.sh $(BINDIR)/affine-interrupts.sh
install -p -D -m 755 set-cpu-wakeup-latency.sh $(BINDIR)/set-cpu-wakeup-latency.sh
install -p -D -m 755 topology $(BINDIR)/topology
install -p -D -m 755 worker_reserved.conf $(PLATFORMCONFDIR)/worker_reserved.conf
install -p -D -m 755 worker-goenabled.sh $(GOENABLEDDIR)/worker-goenabled.sh
install -p -D -m 664 affine-platform.sh.service $(SYSTEMDDIR)/affine-platform.sh.service

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#!/bin/bash
################################################################################
# Copyright (c) 2015-2016 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
################################################################################
#
# Purpose:
# Affine the interface IRQ to specified cpulist.
#
# Usage: /usr/bin/affine-interrupts.sh interface cpulist
#
# Define minimal path
PATH=/bin:/usr/bin:/usr/local/bin
# logger setup
WHOAMI=`basename $0`
LOG_FACILITY=user
LOG_PRIORITY=info
TMPLOG=/tmp/${WHOAMI}.log
# LOG() - generates log and puts in temporary file
function LOG {
logger -t "${0##*/}[$$]" -p ${LOG_FACILITY}.${LOG_PRIORITY} "$@"
echo "${0##*/}[$$]" "$@" >> ${TMPLOG}
}
function INFO {
MSG="INFO"
LOG "${MSG} $@"
}
function ERROR {
MSG="ERROR"
LOG "${MSG} $@"
}
if [ "$#" -ne 2 ]; then
ERROR "Interface name and cpulist are required"
exit 1
fi
interface=$1
cpulist=$2
# Find PCI device matching interface, keep last matching device name
dev=$(find /sys/devices -name "${interface}" | \
perl -ne 'print $1 if /([[:xdigit:]]{4}:[[:xdigit:]]{2}:[[:xdigit:]]{2}\.[[:xdigit:]])\/[[:alpha:]]/;')
# Obtain all IRQs for this device
irq=$(cat /sys/bus/pci/devices/${dev}/irq 2>/dev/null)
msi_irqs=$(ls /sys/bus/pci/devices/${dev}/msi_irqs 2>/dev/null | xargs)
INFO $LINENO "affine ${interface} (dev:${dev} irq:${irq} msi_irqs:${msi_irqs}) with cpus (${cpulist})"
for i in $(echo "${irq} ${msi_irqs}"); do echo $i; done | \
xargs --no-run-if-empty -i{} \
/bin/bash -c "[[ -e /proc/irq/{} ]] && echo ${cpulist} > /proc/irq/{}/smp_affinity_list" 2>/dev/null
exit 0

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#!/bin/bash
################################################################################
# Copyright (c) 2013 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
################################################################################
# Define minimal path
PATH=/bin:/usr/bin:/usr/local/bin
LOG_FUNCTIONS=${LOG_FUNCTIONS:-"/etc/init.d/log_functions.sh"}
CPUMAP_FUNCTIONS=${CPUMAP_FUNCTIONS:-"/etc/init.d/cpumap_functions.sh"}
TASK_AFFINITY_FUNCTIONS=${TASK_AFFINITY_FUNCTIONS:-"/etc/init.d/task_affinity_functions.sh"}
source /etc/init.d/functions
[[ -e ${LOG_FUNCTIONS} ]] && source ${LOG_FUNCTIONS}
[[ -e ${CPUMAP_FUNCTIONS} ]] && source ${CPUMAP_FUNCTIONS}
[[ -e ${TASK_AFFINITY_FUNCTIONS} ]] && source ${TASK_AFFINITY_FUNCTIONS}
linkname=$(readlink -n -f $0)
scriptname=$(basename $linkname)
# Enable debug logs
LOG_DEBUG=1
. /etc/platform/platform.conf
################################################################################
# Affine all running tasks to the CPULIST provided in the first parameter.
################################################################################
function affine_tasks {
local CPULIST=$1
local PIDLIST
local RET=0
# Affine non-kernel-thread tasks (excluded [kthreadd] and its children) to all available
# cores. They will be reaffined to platform cores later on as part of nova-compute
# launch.
log_debug "Affining all tasks to all available CPUs..."
affine_tasks_to_all_cores
RET=$?
if [ $RET -ne 0 ]; then
log_error "Some tasks failed to be affined to all cores."
fi
# Get number of logical cpus
N_CPUS=$(cat /proc/cpuinfo 2>/dev/null | \
awk '/^[pP]rocessor/ { n +=1 } END { print (n>0) ? n : 1}')
# Calculate platform cores cpumap
PLATFORM_COREMASK=$(cpulist_to_cpumap ${CPULIST} ${N_CPUS})
# Set default IRQ affinity
echo ${PLATFORM_COREMASK} > /proc/irq/default_smp_affinity
# Affine all PCI/MSI interrupts to platform cores; this overrides
# irqaffinity boot arg, since that does not handle IRQs for PCI devices
# on numa nodes that do not intersect with platform cores.
PCIDEVS=/sys/bus/pci/devices
declare -a irqs=()
irqs+=($(cat ${PCIDEVS}/*/irq 2>/dev/null | xargs))
irqs+=($(ls ${PCIDEVS}/*/msi_irqs 2>/dev/null | grep -E '^[0-9]+$' | xargs))
# flatten list of irqs, removing duplicates
irqs=($(echo ${irqs[@]} | tr ' ' '\n' | sort -nu))
log_debug "Affining all PCI/MSI irqs(${irqs[@]}) with cpus (${CPULIST})"
for i in ${irqs[@]}; do
/bin/bash -c "[[ -e /proc/irq/${i} ]] && echo ${CPULIST} > /proc/irq/${i}/smp_affinity_list" 2>/dev/null
done
if [[ "$subfunction" == *"worker,lowlatency" ]]; then
# Affine work queues to platform cores
echo ${PLATFORM_COREMASK} > /sys/devices/virtual/workqueue/cpumask
echo ${PLATFORM_COREMASK} > /sys/bus/workqueue/devices/writeback/cpumask
# On low latency compute reassign the per cpu threads rcuc, ksoftirq,
# ktimersoftd to FIFO along with the specified priority
PIDLIST=$( ps -e -p 2 |grep rcuc | awk '{ print $1; }')
for PID in ${PIDLIST[@]}; do
chrt -p -f 4 ${PID} 2>/dev/null
done
PIDLIST=$( ps -e -p 2 |grep ksoftirq | awk '{ print $1; }')
for PID in ${PIDLIST[@]}; do
chrt -p -f 2 ${PID} 2>/dev/null
done
PIDLIST=$( ps -e -p 2 |grep ktimersoftd | awk '{ print $1; }')
for PID in ${PIDLIST[@]}; do
chrt -p -f 3 ${PID} 2>/dev/null
done
fi
return 0
}
################################################################################
# Start Action
################################################################################
function start {
local RET=0
echo -n "Starting ${scriptname}: "
## Check whether we are root (need root for taskset)
if [ $UID -ne 0 ]; then
log_error "require root or sudo"
RET=1
return ${RET}
fi
## Define platform cpulist to be thread siblings of core 0
PLATFORM_CPULIST=$(get_platform_cpu_list)
# Affine all tasks to platform cpulist
affine_tasks ${PLATFORM_CPULIST}
RET=$?
if [ ${RET} -ne 0 ]; then
log_error "Failed to affine tasks ${PLATFORM_CPULIST}, rc=${RET}"
return ${RET}
fi
print_status ${RET}
return ${RET}
}
################################################################################
# Stop Action - don't do anything
################################################################################
function stop {
local RET=0
echo -n "Stopping ${scriptname}: "
print_status ${RET}
return ${RET}
}
################################################################################
# Restart Action
################################################################################
function restart {
stop
start
}
################################################################################
# Main Entry
#
################################################################################
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload)
restart
;;
status)
echo -n "OK"
;;
*)
echo $"Usage: $0 {start|stop|restart|reload|status}"
exit 1
esac
exit $?

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[Unit]
Description=Titanium Cloud Affine Platform
After=syslog.service network.service dbus.service sw-patch.service
Before=workerconfig.service
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/etc/init.d/affine-platform.sh start
ExecStop=/etc/init.d/affine-platform.sh stop
ExecReload=/etc/init.d/affine-platform.sh restart
[Install]
WantedBy=multi-user.target

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#!/bin/bash
################################################################################
# Copyright (c) 2013-2018 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
################################################################################
source /etc/platform/platform.conf
################################################################################
# Utility function to expand a sequence of numbers (e.g., 0-7,16-23)
################################################################################
function expand_sequence {
SEQUENCE=(${1//,/ })
DELIMITER=${2:-","}
LIST=
for entry in ${SEQUENCE[@]}; do
range=(${entry/-/ })
a=${range[0]}
b=${range[1]:-${range[0]}}
for i in $(seq $a $b); do
LIST="${LIST}${DELIMITER}${i}"
done
done
echo ${LIST:1}
}
################################################################################
# Append a string to comma separated list string
################################################################################
function append_list {
local PUSH=$1
local LIST=$2
if [ -z "${LIST}" ]; then
LIST=${PUSH}
else
LIST="${LIST},${PUSH}"
fi
echo ${LIST}
return 0
}
################################################################################
# Condense a sequence of numbers to a list of ranges (e.g, 7-12,15-16)
################################################################################
function condense_sequence {
local arr=( $(printf '%s\n' "$@" | sort -n) )
local first
local last
local cpulist=""
for ((i=0; i < ${#arr[@]}; i++)); do
num=${arr[$i]}
if [[ -z $first ]]; then
first=$num
last=$num
continue
fi
if [[ num -ne $((last + 1)) ]]; then
if [[ first -eq last ]]; then
cpulist=$(append_list ${first} ${cpulist})
else
cpulist=$(append_list "${first}-${last}" ${cpulist})
fi
first=$num
last=$num
else
: $((last++))
fi
done
if [[ first -eq last ]]; then
cpulist=$(append_list ${first} ${cpulist})
else
cpulist=$(append_list "${first}-${last}" ${cpulist})
fi
echo "$cpulist"
}
################################################################################
# Converts a CPULIST (e.g., 0-7,16-23) to a CPUMAP (e.g., 0x00FF00FF). The
# CPU map is returned as a string representation of a large hexidecimal
# number but without the leading "0x" characters.
#
################################################################################
function cpulist_to_cpumap {
local CPULIST=$1
local NR_CPUS=$2
local CPUMAP=0
local CPUID=0
if [ -z "${NR_CPUS}" ] || [ ${NR_CPUS} -eq 0 ]; then
echo 0
return 0
fi
for CPUID in $(expand_sequence $CPULIST " "); do
if [ "${CPUID}" -lt "${NR_CPUS}" ]; then
CPUMAP=$(echo "${CPUMAP} + (2^${CPUID})" | bc -l)
fi
done
echo "obase=16;ibase=10;${CPUMAP}" | bc -l
return 0
}
################################################################################
# Converts a CPUMAP (e.g., 0x00FF00FF) to a CPULIST (e.g., 0-7,16-23). The
# CPUMAP is expected in hexidecimal (base=10) form without the leading "0x"
# characters.
#
################################################################################
function cpumap_to_cpulist {
local CPUMAP
CPUMAP=$(echo "obase=10;ibase=16;$1" | bc -l)
local NR_CPUS=$2
local list=()
local cpulist=""
for((i=0; i < NR_CPUS; i++))
do
## Since 'bc' does not support any bitwise operators this expression:
## if (CPUMAP & (1 << CPUID))
## has to be rewritten like this:
## if (CPUMAP % (2**(CPUID+1)) > ((2**(CPUID)) - 1))
##
ISSET=$(echo "scale=0; (${CPUMAP} % 2^(${i}+1)) > (2^${i})-1" | bc -l)
if [ "${ISSET}" -ne 0 ]; then
list+=($i)
fi
done
cpulist=$(condense_sequence ${list[@]} )
echo "$cpulist"
return 0
}
################################################################################
# Bitwise NOT of a hexidecimal representation of a CPULIST. The value is
# returned as a hexidecimal value but without the leading "0x" characters
#
################################################################################
function invert_cpumap {
local CPUMAP
CPUMAP=$(echo "obase=10;ibase=16;$1" | bc -l)
local NR_CPUS=$2
local INVERSE_CPUMAP=0
for CPUID in $(seq 0 $((NR_CPUS - 1))); do
## See comment in previous function
ISSET=$(echo "scale=0; (${CPUMAP} % 2^(${CPUID}+1)) > (2^${CPUID})-1" | bc -l)
if [ "${ISSET}" -eq 1 ]; then
continue
fi
INVERSE_CPUMAP=$(echo "${INVERSE_CPUMAP} + (2^${CPUID})" | bc -l)
done
echo "obase=16;ibase=10;${INVERSE_CPUMAP}" | bc -l
return 0
}
################################################################################
# Builds the complement representation of a CPULIST
#
################################################################################
function invert_cpulist {
local CPULIST=$1
local NR_CPUS=$2
local CPUMAP
CPUMAP=$(cpulist_to_cpumap ${CPULIST} ${NR_CPUS})
cpumap_to_cpulist $(invert_cpumap ${CPUMAP} ${NR_CPUS}) ${NR_CPUS}
return 0
}
################################################################################
# in_list() - check whether item is contained in list
# param: item
# param: list (i.e. 0-3,8-11)
# returns: 0 - item is contained in list;
# 1 - item is not contained in list
#
################################################################################
function in_list {
local item="$1"
local list="$2"
# expand list format 0-3,8-11 to a full sequence {0..3} {8..11}
local exp_list
exp_list=$(echo ${list} | \
sed -e 's#,# #g' -e 's#\([0-9]*\)-\([0-9]*\)#{\1\.\.\2}#g')
local e
for e in $(eval echo ${exp_list}); do
[[ "$e" == "$item" ]] && return 0
done
return 1
}
################################################################################
# any_in_list() - check if any item of sublist is contained in list
# param: sublist
# param: list
# returns: 0 - an item of sublist is contained in list;
# 1 - no sublist items contained in list
#
################################################################################
function any_in_list {
local sublist="$1"
local list="$2"
local e
local exp_list
# expand list format 0-3,8-11 to a full sequence {0..3} {8..11}
exp_list=$(echo ${list} | \
sed -e 's#,# #g' -e 's#\([0-9]*\)-\([0-9]*\)#{\1\.\.\2}#g')
declare -A a_list
for e in $(eval echo ${exp_list}); do
a_list[$e]=1
done
# expand list format 0-3,8-11 to a full sequence {0..3} {8..11}
exp_list=$(echo ${sublist} | \
sed -e 's#,# #g' -e 's#\([0-9]*\)-\([0-9]*\)#{\1\.\.\2}#g')
declare -A a_sublist
for e in $(eval echo ${exp_list}); do
a_sublist[$e]=1
done
# Check if any element of sublist is in list
for e in "${!a_sublist[@]}"; do
if [[ "${a_list[$e]}" == 1 ]]; then
return 0 # matches
fi
done
return 1 # no match
}
################################################################################
# Return list of CPUs reserved for platform
################################################################################
function get_platform_cpu_list {
## Define platform cpulist based on engineering a number of cores and
## whether this is a combo or not, and include SMT siblings.
if [[ $subfunction = *worker* ]]; then
RESERVE_CONF="/etc/platform/worker_reserved.conf"
[[ -e ${RESERVE_CONF} ]] && source ${RESERVE_CONF}
if [ -n "$PLATFORM_CPU_LIST" ];then
echo "$PLATFORM_CPU_LIST"
return 0
fi
fi
local PLATFORM_SOCKET=0
local PLATFORM_START=0
local PLATFORM_CORES=1
if [ "$nodetype" = "controller" ]; then
PLATFORM_CORES=$(($PLATFORM_CORES+1))
fi
local PLATFORM_CPULIST
PLATFORM_CPULIST=$(topology_to_cpulist ${PLATFORM_SOCKET} ${PLATFORM_START} ${PLATFORM_CORES})
echo ${PLATFORM_CPULIST}
}
################################################################################
# Return list of CPUs reserved for vswitch
################################################################################
function get_vswitch_cpu_list {
## Define default avp cpulist based on engineered number of platform cores,
## engineered avp cores, and include SMT siblings.
if [[ $subfunction = *worker* ]]; then
VSWITCH_CONF="/etc/vswitch/vswitch.conf"
[[ -e ${VSWITCH_CONF} ]] && source ${VSWITCH_CONF}
if [ -n "$VSWITCH_CPU_LIST" ];then
echo "$VSWITCH_CPU_LIST"
return 0
fi
fi
local N_CORES_IN_PKG
N_CORES_IN_PKG=$(cat /proc/cpuinfo 2>/dev/null | \
awk '/^cpu cores/ {n = $4} END { print (n>0) ? n : 1 }')
# engineer platform cores
local PLATFORM_CORES=1
if [ "$nodetype" = "controller" ]; then
PLATFORM_CORES=$(($PLATFORM_CORES+1))
fi
# engineer AVP cores
local AVP_SOCKET=0
local AVP_START=${PLATFORM_CORES}
local AVP_CORES=1
if [ ${N_CORES_IN_PKG} -gt 4 ]; then
AVP_CORES=$(($AVP_CORES+1))
fi
local AVP_CPULIST
AVP_CPULIST=$(topology_to_cpulist ${AVP_SOCKET} ${AVP_START} ${AVP_CORES})
echo ${AVP_CPULIST}
}
################################################################################
# vswitch_expanded_cpu_list() - compute the vswitch cpu list, including it's siblings
################################################################################
function vswitch_expanded_cpu_list {
list=$(get_vswitch_cpu_list)
# Expand vswitch cpulist
vswitch_cpulist=$(expand_sequence ${list} " ")
cpulist=""
for e in $vswitch_cpulist; do
# claim hyperthread siblings if SMT enabled
SIBLINGS_CPULIST=$(cat /sys/devices/system/cpu/cpu${e}/topology/thread_siblings_list 2>/dev/null)
siblings_cpulist=$(expand_sequence ${SIBLINGS_CPULIST} " ")
for s in $siblings_cpulist; do
in_list ${s} ${cpulist}
if [ $? -eq 1 ]; then
cpulist=$(append_list ${s} ${cpulist})
fi
done
done
echo "$cpulist"
return 0
}
################################################################################
# platform_expanded_cpu_list() - compute the platform cpu list, including it's siblings
################################################################################
function platform_expanded_cpu_list {
list=$(get_platform_cpu_list)
# Expand platform cpulist
platform_cpulist=$(expand_sequence ${list} " ")
cpulist=""
for e in $platform_cpulist; do
# claim hyperthread siblings if SMT enabled
SIBLINGS_CPULIST=$(cat /sys/devices/system/cpu/cpu${e}/topology/thread_siblings_list 2>/dev/null)
siblings_cpulist=$(expand_sequence ${SIBLINGS_CPULIST} " ")
for s in $siblings_cpulist; do
in_list ${s} ${cpulist}
if [ $? -eq 1 ]; then
cpulist=$(append_list ${s} ${cpulist})
fi
done
done
echo "$cpulist"
return 0
}
################################################################################
# Return list of CPUs based on cpu topology. Select the socket, starting core
# within the socket, select number of cores, and SMT siblings.
################################################################################
function topology_to_cpulist {
local SOCKET=$1
local CORE_START=$2
local NUM_CORES=$3
local CPULIST
CPULIST=$(cat /proc/cpuinfo 2>/dev/null | perl -sne \
'BEGIN { %T = {}; %H = {}; $L = $P = $C = $S = 0; }
{
if (/processor\s+:\s+(\d+)/) { $L = $1; }
if (/physical id\s+:\s+(\d+)/) { $P = $1; }
if (/core id\s+:\s+(\d+)/) {
$C = $1;
$T{$P}{$C}++;
$S = $T{$P}{$C};
$H{$P}{$C}{$S} = $L;
}
}
END {
@cores = sort { $a <=> $b } keys $T{$socket};
@sel_cores = splice @cores, $core_start, $num_cores;
@lcpus = ();
for $C (@sel_cores) {
for $S (sort {$a <=> $b } keys %{ $H{$socket}{$C} }) {
push @lcpus, $H{$socket}{$C}{$S};
}
}
printf "%s\n", join(",", @lcpus);
}' -- -socket=${SOCKET} -core_start=${CORE_START} -num_cores=${NUM_CORES})
echo ${CPULIST}
}

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@@ -0,0 +1,241 @@
#!/bin/bash
#
# Copyright (c) 2015-2016 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
source /etc/init.d/cpumap_functions.sh
export NR_CPUS_LIST=("4" "8" "16" "32" "64" "128")
if [ ! -z ${1} ]; then
NR_CPUS_LIST=(${1//,/ })
fi
function test_cpumap_to_cpulist {
local NR_CPUS=$1
declare -A CPULISTS
if [ ${NR_CPUS} -ge 4 ]; then
CPULISTS["0"]=""
CPULISTS["1"]="0"
CPULISTS["2"]="1"
CPULISTS["3"]="0-1"
CPULISTS["5"]="0,2"
CPULISTS["7"]="0-2"
CPULISTS["F"]="0-3"
CPULISTS["9"]="0,3"
fi
if [ ${NR_CPUS} -ge 8 ]; then
CPULISTS["00"]=""
CPULISTS["11"]="0,4"
CPULISTS["FF"]="0-7"
CPULISTS["81"]="0,7"
fi
if [ ${NR_CPUS} -ge 16 ]; then
CPULISTS["0000"]=""
CPULISTS["1111"]="0,4,8,12"
CPULISTS["FFF"]="0-11"
CPULISTS["F0F"]="0-3,8-11"
CPULISTS["F0F0"]="4-7,12-15"
CPULISTS["FFFF"]="0-15"
CPULISTS["FFFE"]="1-15"
CPULISTS["8001"]="0,15"
fi
if [ ${NR_CPUS} -ge 32 ]; then
CPULISTS["00000000"]=""
CPULISTS["11111111"]="0,4,8,12,16,20,24,28"
CPULISTS["0F0F0F0F"]="0-3,8-11,16-19,24-27"
CPULISTS["F0F0F0F0"]="4-7,12-15,20-23,28-31"
CPULISTS["FFFFFFFF"]="0-31"
CPULISTS["FFFFFFFE"]="1-31"
CPULISTS["80000001"]="0,31"
fi
if [ ${NR_CPUS} -ge 64 ]; then
CPULISTS["0000000000000000"]=""
CPULISTS["1111111111111111"]="0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60"
CPULISTS["0F0F0F0F0F0F0F0F"]="0-3,8-11,16-19,24-27,32-35,40-43,48-51,56-59"
CPULISTS["F0F0F0F0F0F0F0F0"]="4-7,12-15,20-23,28-31,36-39,44-47,52-55,60-63"
CPULISTS["FFFFFFFFFFFFFFFF"]="0-63"
CPULISTS["FFFFFFFFFFFFFFFE"]="1-63"
CPULISTS["8000000000000001"]="0,63"
fi
if [ ${NR_CPUS} -ge 128 ]; then
CPULISTS["00000000000000000000000000000000"]=""
CPULISTS["11111111111111111111111111111111"]="0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124"
CPULISTS["0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F"]="0-3,8-11,16-19,24-27,32-35,40-43,48-51,56-59,64-67,72-75,80-83,88-91,96-99,104-107,112-115,120-123"
CPULISTS["F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0"]="4-7,12-15,20-23,28-31,36-39,44-47,52-55,60-63,68-71,76-79,84-87,92-95,100-103,108-111,116-119,124-127"
CPULISTS["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"]="0-127"
CPULISTS["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"]="1-127"
CPULISTS["80000000000000000000000000000001"]="0,127"
fi
for CPUMAP in ${!CPULISTS[@]}; do
EXPECTED=${CPULISTS[${CPUMAP}]}
CPULIST=$(cpumap_to_cpulist ${CPUMAP} ${NR_CPUS})
if [ "${CPULIST}" != "${EXPECTED}" ]; then
printf "\n"
echo "error: (cpumap_to_list ${CPUMAP} ${NR_CPUS}) returned \"${CPULIST}\" instead of \"${EXPECTED}\""
fi
printf "."
done
printf "\n"
}
function test_cpulist_to_cpumap {
local NR_CPUS=$1
declare -A CPUMAPS
if [ ${NR_CPUS} -ge 4 ]; then
CPUMAPS[" "]="0"
CPUMAPS["0"]="1"
CPUMAPS["1"]="2"
CPUMAPS["0-1"]="3"
CPUMAPS["0,2"]="5"
CPUMAPS["0-2"]="7"
CPUMAPS["0-3"]="F"
CPUMAPS["0,3"]="9"
fi
if [ ${NR_CPUS} -ge 8 ]; then
CPUMAPS["0,4"]="11"
CPUMAPS["0-7"]="FF"
CPUMAPS["0,7"]="81"
fi
if [ ${NR_CPUS} -ge 16 ]; then
CPUMAPS["0,4,8,12"]="1111"
CPUMAPS["0-11"]="FFF"
CPUMAPS["0-3,8-11"]="F0F"
CPUMAPS["4-7,12-15"]="F0F0"
CPUMAPS["0-15"]="FFFF"
CPUMAPS["1-15"]="FFFE"
CPUMAPS["0,15"]="8001"
fi
if [ ${NR_CPUS} -ge 32 ]; then
CPUMAPS["0,4,8,12,16,20,24,28"]="11111111"
CPUMAPS["0-3,8-11,16-19,24-27"]="F0F0F0F"
CPUMAPS["4-7,12-15,20-23,28-31"]="F0F0F0F0"
CPUMAPS["0-31"]="FFFFFFFF"
CPUMAPS["1-31"]="FFFFFFFE"
CPUMAPS["0,31"]="80000001"
fi
if [ ${NR_CPUS} -ge 64 ]; then
CPUMAPS["0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60"]="1111111111111111"
CPUMAPS["0-3,8-11,16-19,24-27,32-35,40-43,48-51,56-59"]="F0F0F0F0F0F0F0F"
CPUMAPS["4-7,12-15,20-23,28-31,36-39,44-47,52-55,60-63"]="F0F0F0F0F0F0F0F0"
CPUMAPS["0-63"]="FFFFFFFFFFFFFFFF"
CPUMAPS["1-63"]="FFFFFFFFFFFFFFFE"
CPUMAPS["0,63"]="8000000000000001"
fi
if [ ${NR_CPUS} -ge 128 ]; then
CPUMAPS["0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124"]="11111111111111111111111111111111"
CPUMAPS["0-3,8-11,16-19,24-27,32-35,40-43,48-51,56-59,64-67,72-75,80-83,88-91,96-99,104-107,112-115,120-123"]="F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F"
CPUMAPS["4-7,12-15,20-23,28-31,36-39,44-47,52-55,60-63,68-71,76-79,84-87,92-95,100-103,108-111,116-119,124-127"]="F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0"
CPUMAPS["0-127"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
CPUMAPS["1-127"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
CPUMAPS["0,127"]="80000000000000000000000000000001"
fi
for CPULIST in ${!CPUMAPS[@]}; do
EXPECTED=${CPUMAPS[${CPULIST}]}
CPUMAP=$(cpulist_to_cpumap ${CPULIST} ${NR_CPUS})
if [ "${CPUMAP}" != "${EXPECTED}" ]; then
printf "\n"
echo "error: (cpulist_to_cpumap ${CPULIST} ${NR_CPUS}) returned \"${CPUMAP}\" instead of \"${EXPECTED}\""
fi
printf "."
done
printf "\n"
}
function test_invert_cpumap {
local NR_CPUS=$1
declare -A INVERSES
if [ $((${NR_CPUS} % 4)) -ne 0 ]; then
echo "test_invert_cpumap skipping NR_CPUS=${NR_CPUS}; not a multiple of 4"
return 0
fi
if [ ${NR_CPUS} -ge 4 ]; then
INVERSES["0"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
INVERSES["1"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
INVERSES["2"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD"
INVERSES["3"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC"
INVERSES["5"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA"
INVERSES["7"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF8"
INVERSES["F"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0"
INVERSES["9"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF6"
fi
if [ ${NR_CPUS} -ge 8 ]; then
INVERSES["11"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEE"
INVERSES["FF"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00"
INVERSES["F0"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0F"
INVERSES["81"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7E"
fi
if [ ${NR_CPUS} -ge 16 ]; then
INVERSES["1111"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFEEEE"
INVERSES["FFF"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFF000"
INVERSES["F0F"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFF0F0"
INVERSES["F0F0"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFF0F0F"
INVERSES["0F0F"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFFF0F0"
INVERSES["FFFF"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFF0000"
INVERSES["FFFE"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFF0001"
INVERSES["8001"]="FFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFE"
fi
if [ ${NR_CPUS} -ge 32 ]; then
INVERSES["11111111"]="FFFFFFFFFFFFFFFFFFFFFFFFEEEEEEEE"
INVERSES["0F0F0F0F"]="FFFFFFFFFFFFFFFFFFFFFFFFF0F0F0F0"
INVERSES["F0F0F0F0"]="FFFFFFFFFFFFFFFFFFFFFFFF0F0F0F0F"
INVERSES["FFFFFFFF"]="FFFFFFFFFFFFFFFFFFFFFFFF00000000"
INVERSES["FFFFFFFE"]="FFFFFFFFFFFFFFFFFFFFFFFF00000001"
INVERSES["80000001"]="FFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFE"
fi
if [ ${NR_CPUS} -ge 64 ]; then
INVERSES["1111111111111111"]="FFFFFFFFFFFFFFFFEEEEEEEEEEEEEEEE"
INVERSES["0F0F0F0F0F0F0F0F"]="FFFFFFFFFFFFFFFFF0F0F0F0F0F0F0F0"
INVERSES["F0F0F0F0F0F0F0F0"]="FFFFFFFFFFFFFFFF0F0F0F0F0F0F0F0F"
INVERSES["FFFFFFFFFFFFFFFF"]="FFFFFFFFFFFFFFFF0000000000000000"
INVERSES["FFFFFFFFFFFFFFFE"]="FFFFFFFFFFFFFFFF0000000000000001"
INVERSES["8000000000000001"]="FFFFFFFFFFFFFFFF7FFFFFFFFFFFFFFE"
fi
if [ ${NR_CPUS} -ge 128 ]; then
INVERSES["11111111111111111111111111111111"]="EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
INVERSES["0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F"]="F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0"
INVERSES["F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0"]="0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F"
INVERSES["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"]="00000000000000000000000000000000"
INVERSES["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"]="00000000000000000000000000000001"
INVERSES["80000000000000000000000000000001"]="7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
fi
for CPUMAP in ${!INVERSES[@]}; do
EXPECTED=${INVERSES[${CPUMAP}]}
if [ ${NR_CPUS} -lt 128 ]; then
EXPECTED=$(echo ${EXPECTED} | cut --complement -c1-$((32-((${NR_CPUS}+3)/4))))
fi
EXPECTED=$(echo ${EXPECTED} | sed -e "s/^0*//")
if [ -z ${EXPECTED} ]; then
EXPECTED="0"
fi
INVERSE=$(invert_cpumap ${CPUMAP} ${NR_CPUS})
if [ "${INVERSE}" != "${EXPECTED}" ]; then
printf "\n"
echo "error: (invert_cpumap ${CPUMAP} ${NR_CPUS}) returned \"${INVERSE}\" instead of \"${EXPECTED}\""
fi
printf "."
done
printf "\n"
}
for NR_CPUS in ${NR_CPUS_LIST[@]}; do
echo "NR_CPUS=${NR_CPUS}"
test_cpumap_to_cpulist ${NR_CPUS}
test_cpulist_to_cpumap ${NR_CPUS}
test_invert_cpumap ${NR_CPUS}
echo ""
done
exit 0

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@@ -0,0 +1,26 @@
#!/bin/bash
################################################################################
# Copyright (c) 2013 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
################################################################################
#
# ps-sched.sh -- gives detailed task listing with scheduling attributes
# -- this is cpu and scheduling intensive version (shell/taskset based)
# (note: does not print fields 'group' or 'timeslice')
printf "%6s %6s %6s %1c %2s %4s %6s %4s %-24s %2s %-16s %s\n" "PID" "TID" "PPID" "S" "PO" "NICE" "RTPRIO" "PR" "AFFINITY" "P" "COMM" "COMMAND"
ps -eL -o pid=,lwp=,ppid=,state=,class=,nice=,rtprio=,priority=,psr=,comm=,command= | \
while read pid tid ppid state policy nice rtprio priority psr comm command; do
bitmask=$(taskset -p $tid 2>/dev/null)
aff=${bitmask##*: }
if [ -z "${aff}" ]; then
aff="0x0"
else
aff="0x${aff}"
fi
printf "%6d %6d %6d %1c %2s %4s %6s %4d %-24s %2d %-16s %s\n" $pid $tid $ppid $state $policy $nice $rtprio $priority $aff $psr $comm "$command"
done
exit 0

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@@ -0,0 +1,89 @@
#!/bin/bash
#
# Copyright (c) 2017 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
# Purpose: set PM QoS resume latency constraints for CPUs.
# Usage: /usr/bin/set-cpu-wakeup-latency.sh policy cpulist
# policy may be either "low" or "high" to set appropriate latency.
# "low" means HALT (C1) is the deepest C-state we allow the CPU to enter.
# "high" means we allow the CPU to sleep as deeply as possible.
# cpulist is for specifying a numerical list of processors.
# It may contain multiple items, separated by comma, and ranges.
# For example, 0,5,7,9-11.
# Define minimal path
PATH=/bin:/usr/bin:/usr/local/bin
LOG_FUNCTIONS=${LOG_FUNCTIONS:-"/etc/init.d/log_functions.sh"}
CPUMAP_FUNCTIONS=${CPUMAP_FUNCTIONS:-"/etc/init.d/cpumap_functions.sh"}
[[ -e ${LOG_FUNCTIONS} ]] && source ${LOG_FUNCTIONS}
[[ -e ${CPUMAP_FUNCTIONS} ]] && source ${CPUMAP_FUNCTIONS}
if [ $UID -ne 0 ]; then
log_error "$0 requires root or sudo privileges"
exit 1
fi
if [ "$#" -ne 2 ]; then
log_error "$0 requires policy and cpulist parameters"
exit 1
fi
POLICY=$1
CPU_LIST=$2
NUMBER_OF_CPUS=$(getconf _NPROCESSORS_CONF 2>/dev/null)
STATUS=1
for CPU_NUM in $(expand_sequence "$CPU_LIST" " "); do
# Check that we are not setting PM QoS policy for non-existing CPU
if [ "$CPU_NUM" -lt "0" ] || [ "$CPU_NUM" -ge "$NUMBER_OF_CPUS" ]; then
log_error "CPU number ${CPU_NUM} is invalid, available CPUs are 0-${NUMBER_OF_CPUS-1}"
exit 1
fi
# Obtain CPU wakeup latencies for all C-states available starting from operating state to deepest sleep
declare -a LIMITS=()
LIMITS+=($(cat /sys/devices/system/cpu/cpu${CPU_NUM}/cpuidle/state*/latency 2>/dev/null | xargs | sort))
if [ ${#LIMITS[@]} -eq 0 ]; then
log_debug "Failed to get PM QoS latency limits for CPU ${CPU_NUM}"
fi
# Select appropriate CPU wakeup latency based on "low" or "high" policy
case "${POLICY}" in
"low")
# Get first sleep state for "low" policy
if [ ${#LIMITS[@]} -eq 0 ]; then
LATENCY=1
else
LATENCY=${LIMITS[1]}
fi
;;
"high")
# Get deepest sleep state for "high" policy
if [ ${#LIMITS[@]} -eq 0 ]; then
LATENCY=1000
else
LATENCY=${LIMITS[${#LIMITS[@]}-1]}
fi
;;
*)
log_error "Policy is invalid, can be either low or high"
exit 1
esac
# Set the latency for paricular CPU
echo ${LATENCY} > /sys/devices/system/cpu/cpu${CPU_NUM}/power/pm_qos_resume_latency_us 2>/dev/null
RET_VAL=$?
if [ ${RET_VAL} -ne 0 ]; then
log_error "Failed to set PM QoS latency for CPU ${CPU_NUM}, rc=${RET_VAL}"
continue
else
log_debug "Succesfully set PM QoS latency for CPU ${CPU_NUM}, rc=${RET_VAL}"
STATUS=0
fi
done
exit ${STATUS}

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@@ -0,0 +1,322 @@
#!/bin/bash
################################################################################
# Copyright (c) 2017 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
################################################################################
# Define minimal path
PATH=/bin:/usr/bin:/usr/local/bin
. /etc/platform/platform.conf
LOG_FUNCTIONS=${LOG_FUNCTIONS:-"/etc/init.d/log_functions.sh"}
CPUMAP_FUNCTIONS=${CPUMAP_FUNCTIONS:-"/etc/init.d/cpumap_functions.sh"}
[[ -e ${LOG_FUNCTIONS} ]] && source ${LOG_FUNCTIONS}
[[ -e ${CPUMAP_FUNCTIONS} ]] && source ${CPUMAP_FUNCTIONS}
# Enable debug logs and tag them
LOG_DEBUG=1
TAG="TASKAFFINITY:"
TASK_AFFINING_INCOMPLETE="/etc/platform/.task_affining_incomplete"
N_CPUS=$(cat /proc/cpuinfo 2>/dev/null | \
awk '/^[pP]rocessor/ { n +=1 } END { print (n>0) ? n : 1}')
FULLSET_CPUS="0-"$((N_CPUS-1))
FULLSET_MASK=$(cpulist_to_cpumap ${FULLSET_CPUS} ${N_CPUS})
PLATFORM_CPUS=$(get_platform_cpu_list)
PLATFORM_CPULIST=$(get_platform_cpu_list| \
perl -pe 's/(\d+)-(\d+)/join(",",$1..$2)/eg'| \
sed 's/,/ /g')
VSWITCH_CPULIST=$(get_vswitch_cpu_list| \
perl -pe 's/(\d+)-(\d+)/join(",",$1..$2)/eg'| \
sed 's/,/ /g')
IDLE_MARK=95.0
KERNEL=`uname -a`
################################################################################
# Check if a given core is one of the platform cores
################################################################################
function is_platform_core {
local core=$1
for CPU in ${PLATFORM_CPULIST}; do
if [ $core -eq $CPU ]; then
return 1
fi
done
return 0
}
################################################################################
# Check if a given core is one of the vswitch cores
################################################################################
function is_vswitch_core {
local core=$1
for CPU in ${VSWITCH_CPULIST}; do
if [ $core -eq $CPU ]; then
return 1
fi
done
return 0
}
################################################################################
# An audit and corrective action following a swact
################################################################################
function audit_and_reaffine {
local mask=$1
local cmd_str=""
local tasklist
cmd_str="ps-sched.sh|awk '(\$9==\"$mask\") {print \$2}'"
tasklist=($(eval $cmd_str))
# log_debug "cmd str = $cmd_str"
log_debug "${TAG} There are ${#tasklist[@]} tasks to reaffine."
for task in ${tasklist[@]}; do
taskset -acp ${PLATFORM_CPUS} $task &> /dev/null
rc=$?
[[ $rc -ne 0 ]] && log_error "Failed to set CPU affinity for pid $pid, rc=$rc"
done
tasklist=($(eval $cmd_str))
[[ ${#tasklist[@]} -eq 0 ]] && return 0 || return 1
}
################################################################################
# The following function is used to verify that any sleeping management tasks
# that are on non-platform cores can be migrated to platform cores as soon as
# they are scheduled. It can be invoked either manually or from goenableCompute
# script as a scheduled job (with a few minute delay) if desired.
# The induced tasks migration should be done after all VMs have been restored
# following a host reboot in AIO, hence the delay.
################################################################################
function move_inactive_threads_to_platform_cores {
local tasklist
local cmd_str=""
# Compile a list of non-kernel & non-vswitch/VM related threads that are not
# on platform cores.
# e.g. if the platform cpulist value is "0 8", the resulting command to be
# evaluated should look like this:
# ps-sched.sh|grep -v vswitch|awk '($10!=0 && $10!=8 && $3!=2) {if(NR>1)print $2}'
cmd_str="ps-sched.sh|grep -v vswitch|awk '("
for cpu_num in ${PLATFORM_CPULIST}; do
cmd_str=$cmd_str"\$10!="${cpu_num}" && "
done
cmd_str=$cmd_str"\$3!=2) {if(NR>1)print \$2}'"
echo "selection string = $cmd_str"
tasklist=($(eval $cmd_str))
log_debug "${TAG} There are ${#tasklist[@]} number of tasks to be moved."
# These sleep tasks are stuck on the wrong core(s). They need to be woken up
# so they can be migrated to the right ones. Attaching and detaching strace
# momentarily to the task does the trick.
for task in ${tasklist[@]}; do
strace -p $task 2>/dev/null &
pid=$!
sleep 0.1
kill -SIGINT $pid
done
tasklist=($(eval $cmd_str))
[[ ${#tasklist[@]} -eq 0 ]] && return 0 || return 1
}
################################################################################
# The following function is called by affine-platform.sh to affine tasks to
# all available cores during initial startup and subsequent host reboots.
################################################################################
function affine_tasks_to_all_cores {
local pidlist
local rc=0
if [[ "${KERNEL}" == *" RT "* ]]; then
return 0
fi
log_debug "${TAG} Affining all tasks to CPU (${FULLSET_CPUS})"
pidlist=$(ps --ppid 2 -p 2 --deselect -o pid= | awk '{ print $1; }')
for pid in ${pidlist[@]}; do
ppid=$(ps -o ppid= -p $pid |tr -d '[:space:]')
if [ -z $ppid ] || [ $ppid -eq 2 ]; then
continue
fi
log_debug "Affining pid $pid, parent pid = $ppid"
taskset --all-tasks --pid --cpu-list ${FULLSET_CPUS} $pid &> /dev/null
rc=$?
[[ $rc -ne 0 ]] && log_error "Failed to set CPU affinity for pid $pid, rc=$rc"
done
# Write the cpu list to a temp file which will be read and removed when
# the tasks are reaffined back to platform cores later on.
echo ${FULLSET_CPUS} > ${TASK_AFFINING_INCOMPLETE}
return $rc
}
################################################################################
# The following function can be called by any platform service that needs to
# temporarily make use of idle VM cores to run a short-duration, service
# critical and cpu intensive operation in AIO. For instance, sm can levearage
# the idle cores to speed up swact activity.
#
# At the end of the operation, regarless of the result, the service must be
# calling function affine_tasks_to_platform_cores to re-affine platform tasks
# back to their assigned core(s).
#
# Kernel, vswitch and VM related tasks are untouched.
################################################################################
function affine_tasks_to_idle_cores {
local cpulist
local cpuocc_list
local vswitch_pid
local pidlist
local idle_cpulist
local platform_cpus
local rc=0
local cpu=0
if [ -f ${TASK_AFFINING_INCOMPLETE} ]; then
read cpulist < ${TASK_AFFINING_INCOMPLETE}
log_debug "${TAG} Tasks have already been affined to CPU ($cpulist)."
return 0
fi
if [[ "${KERNEL}" == *" RT "* ]]; then
return 0
fi
# Compile a list of cpus with idle percentage greater than 95% in the last
# 5 seconds.
cpuocc_list=($(sar -P ALL 1 5|grep Average|awk '{if(NR>2)print $8}'))
for idle_value in ${cpuocc_list[@]}; do
is_vswitch_core $cpu
if [ $? -eq 1 ]; then
cpu=$(($cpu+1))
continue
fi
is_platform_core $cpu
if [ $? -eq 1 ]; then
# Platform core is added to the idle list by default
idle_cpulist=$idle_cpulist$cpu","
else
# Non platform core is added to the idle list if it is more than 95% idle
[[ $(echo "$idle_value > ${IDLE_MARK}"|bc) -eq 1 ]] && idle_cpulist=$idle_cpulist$cpu","
fi
cpu=$(($cpu+1))
done
idle_cpulist=$(echo $idle_cpulist|sed 's/.$//')
platform_affinity_mask=$(cpulist_to_cpumap ${PLATFORM_CPUS} ${N_CPUS} \
|awk '{print tolower($0)}')
log_debug "${TAG} Affining all tasks to idle CPU ($idle_cpulist)"
vswitch_pid=$(pgrep vswitch)
pidlist=$(ps --ppid 2 -p 2 --deselect -o pid= | awk '{ print $1; }')
for pid in ${pidlist[@]}; do
ppid=$(ps -o ppid= -p $pid |tr -d '[:space:]')
if [ -z $ppid ] || [ $ppid -eq 2 ] || [ "$pid" = "$vswitch_pid" ]; then
continue
fi
pid_affinity_mask=$(taskset -p $pid | awk '{print $6}')
if [ "${pid_affinity_mask}" == "${platform_affinity_mask}" ]; then
# log_debug "Affining pid $pid to idle cores..."
taskset --all-tasks --pid --cpu-list $idle_cpulist $pid &> /dev/null
rc=$?
[[ $rc -ne 0 ]] && log_error "Failed to set CPU affinity for pid $pid, rc=$rc"
fi
done
# Save the cpu list to the temp file which will be read and removed when
# tasks are reaffined to the platform cores later on.
echo $idle_cpulist > ${TASK_AFFINING_INCOMPLETE}
return $rc
}
################################################################################
# The following function is called by either:
# a) nova-compute wrapper script during AIO system initial bringup or reboot
# or
# b) sm at the end of swact sequence
# to re-affine management tasks back to the platform cores.
################################################################################
function affine_tasks_to_platform_cores {
local cpulist
local pidlist
local rc=0
local count=0
if [ ! -f ${TASK_AFFINING_INCOMPLETE} ]; then
dbg_str="${TAG} Either tasks have never been affined to all/idle cores or"
dbg_str=$dbg_str" they have already been reaffined to platform cores."
log_debug "$dbg_str"
return 0
fi
read cpulist < ${TASK_AFFINING_INCOMPLETE}
affinity_mask=$(cpulist_to_cpumap $cpulist ${N_CPUS}|awk '{print tolower($0)}')
log_debug "${TAG} Reaffining tasks to platform cores (${PLATFORM_CPUS})..."
pidlist=$(ps --ppid 2 -p 2 --deselect -o pid= | awk '{ print $1; }')
for pid in ${pidlist[@]}; do
# log_debug "Processing pid $pid..."
pid_affinity_mask=$(taskset -p $pid | awk '{print $6}')
# Only management tasks need to be reaffined. Kernel, vswitch and VM related
# tasks were not affined previously so they should have different affinity
# mask(s).
if [ "${pid_affinity_mask}" == "${affinity_mask}" ]; then
count=$(($count+1))
# log_debug "Affining pid $pid to platform cores..."
taskset --all-tasks --pid --cpu-list ${PLATFORM_CPUS} $pid &> /dev/null
rc=$?
[[ $rc -ne 0 ]] && log_error "Failed to set CPU affinity for pid $pid, rc=$rc"
fi
done
# A workaround for lack of "end of swact" state
fullmask=$(echo ${FULLSET_MASK} | awk '{print tolower($0)}')
if [ "${affinity_mask}" != "${fullmask}" ]; then
log_debug "${TAG} Schedule an audit and cleanup"
(sleep 60; audit_and_reaffine "0x"$affinity_mask) &
fi
rm -rf ${TASK_AFFINING_INCOMPLETE}
log_debug "${TAG} $count tasks were reaffined to platform cores."
return $rc
}
################################################################################
# The following function can be leveraged by cron tasks
################################################################################
function get_most_idle_core {
local cpuocc_list
local cpu=0
local most_idle_value=${IDLE_MARK}
local most_idle_cpu=0
if [[ "${KERNEL}" == *" RT "* ]]; then
echo $cpu
return
fi
cpuocc_list=($(sar -P ALL 1 5|grep Average|awk '{if(NR>2)print $8}'))
for idle_value in ${cpuocc_list[@]}; do
is_vswitch_core $cpu
if [ $? -eq 1 ]; then
cpu=$(($cpu+1))
continue
fi
if [ $(echo "$idle_value > $most_idle_value"|bc) -eq 1 ]; then
most_idle_value=$idle_value
most_idle_cpu=$cpu
fi
cpu=$(($cpu+1))
done
echo $most_idle_cpu
}

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#!/bin/bash
#
# Copyright (c) 2013-2014 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
python /usr/bin/topology.pyc

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#!/usr/bin/env python
################################################################################
# Copyright (c) 2013 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
################################################################################
#
# topology.py -- gives a summary of logical cpu enumeration,
# sockets, cores per package, threads per core,
# total memory, and numa nodes
from __future__ import print_function
import os
import sys
import re
class Topology(object):
""" Build up topology information.
(i.e. logical cpu topology, NUMA nodes, memory)
"""
def __init__(self):
self.num_cpus = 0
self.num_nodes = 0
self.num_sockets = 0
self.num_cores_per_pkg = 0
self.num_threads_per_core = 0
self.topology = {}
self.topology_idx = {}
self.total_memory_MiB = 0
self.total_memory_nodes_MiB = []
self._get_cpu_topology()
self._get_total_memory_MiB()
self._get_total_memory_nodes_MiB()
def _get_cpu_topology(self):
'''Enumerate logical cpu topology based on parsing /proc/cpuinfo
as function of socket_id, core_id, and thread_id. This updates
topology and reverse index topology_idx mapping.
:param self
:updates self.num_cpus - number of logical cpus
:updates self.num_nodes - number of sockets; maps to number of numa nodes
:updates self.topology[socket_id][core_id][thread_id] = cpu
:updates self.topology_idx[cpu] = {'s': socket_id, 'c': core_id, 't': thread_id}
:returns None
'''
self.num_cpus = 0
self.num_nodes = 0
self.num_sockets = 0
self.num_cores = 0
self.num_threads = 0
self.topology = {}
self.topology_idx = {}
Thread_cnt = {}
cpu = socket_id = core_id = thread_id = -1
re_processor = re.compile(r'^[Pp]rocessor\s+:\s+(\d+)')
re_socket = re.compile(r'^physical id\s+:\s+(\d+)')
re_core = re.compile(r'^core id\s+:\s+(\d+)')
with open('/proc/cpuinfo', 'r') as infile:
for line in infile:
match = re_processor.search(line)
if match:
cpu = int(match.group(1))
socket_id = -1; core_id = -1; thread_id = -1
self.num_cpus += 1
continue
match = re_socket.search(line)
if match:
socket_id = int(match.group(1))
continue
match = re_core.search(line)
if match:
core_id = int(match.group(1))
if socket_id not in Thread_cnt:
Thread_cnt[socket_id] = {}
if core_id not in Thread_cnt[socket_id]:
Thread_cnt[socket_id][core_id] = 0
else:
Thread_cnt[socket_id][core_id] += 1
thread_id = Thread_cnt[socket_id][core_id]
if socket_id not in self.topology:
self.topology[socket_id] = {}
if core_id not in self.topology[socket_id]:
self.topology[socket_id][core_id] = {}
self.topology[socket_id][core_id][thread_id] = cpu
self.topology_idx[cpu] = {'s': socket_id, 'c': core_id, 't': thread_id}
continue
self.num_nodes = len(self.topology.keys())
# In the case topology not detected, hard-code structures
if self.num_nodes == 0:
n_sockets, n_cores, n_threads = (1, self.num_cpus, 1)
self.topology = {}
for socket_id in range(n_sockets):
self.topology[socket_id] = {}
for core_id in range(n_cores):
self.topology[socket_id][core_id] = {}
for thread_id in range(n_threads):
self.topology[socket_id][core_id][thread_id] = 0
# Define Thread-Socket-Core order for logical cpu enumeration
self.topology_idx = {}
cpu = 0
for thread_id in range(n_threads):
for socket_id in range(n_sockets):
for core_id in range(n_cores):
self.topology[socket_id][core_id][thread_id] = cpu
self.topology_idx[cpu] = {'s': socket_id, 'c': core_id, 't': thread_id}
cpu += 1
self.num_nodes = len(self.topology.keys())
self.num_sockets = len(self.topology.keys())
self.num_cores_per_pkg = len(self.topology[0].keys())
self.num_threads_per_core = len(self.topology[0][0].keys())
return None
def _get_total_memory_MiB(self):
"""Get the total memory for VMs (MiB).
:updates: total memory for VMs (MiB)
"""
self.total_memory_MiB = 0
# Total memory
try:
m = open('/proc/meminfo').read().split()
idx_Total = m.index('MemTotal:') + 1
self.total_memory_MiB = int(m[idx_Total]) / 1024
except IOError:
# silently ignore IO errors (eg. file missing)
pass
return None
def _get_total_memory_nodes_MiB(self):
"""Get the total memory per numa node for VMs (MiB).
:updates: total memory per numa node for VMs (MiB)
"""
self.total_memory_nodes_MiB = []
# Memory of each numa node (MiB)
for node in range(self.num_nodes):
Total_MiB = 0
meminfo = "/sys/devices/system/node/node%d/meminfo" % node
try:
m = open(meminfo).read().split()
idx_Total = m.index('MemTotal:') + 1
Total_MiB = int(m[idx_Total]) / 1024
except IOError:
# silently ignore IO errors (eg. file missing)
pass
self.total_memory_nodes_MiB.append(Total_MiB)
return None
def _print_cpu_topology(self):
'''Print logical cpu topology enumeration as function of:
socket_id, core_id, and thread_id.
:param self
:returns None
'''
cpu_list = self.topology_idx.keys()
cpu_list.sort()
total_memory_GiB = self.total_memory_MiB/1024.0
print('TOPOLOGY:')
print('%16s : %5d' % ('logical cpus', self.num_cpus))
print('%16s : %5d' % ('sockets', self.num_sockets))
print('%16s : %5d' % ('cores_per_pkg', self.num_cores_per_pkg))
print('%16s : %5d' % ('threads_per_core', self.num_threads_per_core))
print('%16s : %5d' % ('numa_nodes', self.num_nodes))
print('%16s : %5.2f %s' % ('total_memory', total_memory_GiB, 'GiB'))
print('%16s :' % ('memory_per_node'), end=' ')
for node in range(self.num_nodes):
node_memory_GiB = self.total_memory_nodes_MiB[node]/1024.0
print('%5.2f' % (node_memory_GiB), end=' ')
print('%s' % ('GiB'))
print('')
print('LOGICAL CPU TOPOLOGY:')
print("%9s :" % 'cpu_id', end=' ')
for cpu in cpu_list:
print("%3d" % cpu, end=' ')
print('')
print("%9s :" % 'socket_id', end=' ')
for cpu in cpu_list:
socket_id = self.topology_idx[cpu]['s']
print("%3d" % socket_id, end=' ')
print('')
print("%9s :" % 'core_id', end=' ')
for cpu in cpu_list:
core_id = self.topology_idx[cpu]['c']
print("%3d" % core_id, end=' ')
print('')
print("%9s :" % 'thread_id', end=' ')
for cpu in cpu_list:
thread_id = self.topology_idx[cpu]['t']
print("%3d" % thread_id, end=' ')
print('')
print('')
print('CORE TOPOLOGY:')
print("%6s %9s %7s %9s %s" % ('cpu_id', 'socket_id', 'core_id', 'thread_id', 'affinity'))
for cpu in cpu_list:
affinity = 1<<cpu
socket_id = self.topology_idx[cpu]['s']
core_id = self.topology_idx[cpu]['c']
thread_id = self.topology_idx[cpu]['t']
print("%6d %9d %7d %9d 0x%x" \
% (cpu, socket_id, core_id, thread_id, affinity))
return None
#-------------------------------------------------------------------------------
''' Main Program
'''
# Get logical cpu topology
topology = Topology()
topology._print_cpu_topology()
sys.exit(0)

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#!/bin/bash
#
# Copyright (c) 2014,2016 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
#
# worker "goenabled" check.
#
# If a problem was detected during configuration of worker
# resources then the board is not allowed to enable.
#
WORKER_GOENABLED="/var/run/worker_goenabled"
source "/etc/init.d/log_functions.sh"
source "/usr/bin/tsconfig"
if [ -e ${VOLATILE_WORKER_CONFIG_COMPLETE} -a ! -f ${WORKER_GOENABLED} ]; then
log_error "Worker manifest CPU configuration check failed. Failing goenabled check."
exit 1
fi
exit 0

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################################################################################
# Copyright (c) 2018 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
################################################################################
# WORKER Node configuration parameters for reserved memory and physical cores
# used by Base software and VSWITCH. These are resources that libvirt cannot use.
#
################################################################################
#
# List of logical CPU instances available in the system. This value is used
# for auditing purposes so that the current configuration can be checked for
# validity against the actual number of logical CPU instances in the system.
#
################################################################################
WORKER_CPU_LIST="0-1"
################################################################################
#
# List of Base software resources reserved per numa node. Each array element
# consists of a 3-tuple formatted as: <node>:<memory>:<cores>.
#
# Example: To reserve 1500MB and 1 core on NUMA node0, and 1500MB and 1 core
# on NUMA node1, the variable must be specified as follows.
# WORKER_BASE_MEMORY=("node0:1500MB:1" "node1:1500MB:1")
#
################################################################################
WORKER_BASE_RESERVED=("node0:8000MB:1" "node1:2000MB:0" "node2:2000MB:0" "node3:2000MB:0")
################################################################################
#
# List of HugeTLB memory descriptors to configure. Each array element
# consists of a 3-tuple descriptor formatted as: <node>:<pgsize>:<pgcount>.
# The NUMA node specified must exist and the HugeTLB pagesize must be a valid
# value such as 2048kB or 1048576kB.
#
# For example, to request 256 x 2MB HugeTLB pages on NUMA node0 and node1 the
# variable must be specified as follows.
# WORKER_VSWITCH_MEMORY=("node0:2048kB:256" "node1:2048kB:256")
#
################################################################################
WORKER_VSWITCH_MEMORY=("node0:1048576kB:1" "node1:1048576kB:1" "node2:1048576kB:1" "node3:1048576kB:1")
################################################################################
#
# List of VSWITCH physical cores reserved for VSWITCH applications.
#
# Example: To reserve 2 cores on NUMA node0, and 2 cores on NUMA node1, the
# variable must be specified as follows.
# WORKER_VSWITCH_CORES=("node0:2" "node1:2")
#
################################################################################
WORKER_VSWITCH_CORES=("node0:2" "node1:0" "node2:0" "node3:0")