111 lines
2.9 KiB
Bash
111 lines
2.9 KiB
Bash
#!/bin/bash
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# Usage: memstats.sh [-p <period_mins>] [-i <interval_seconds>] [-c <cpulist>] [-h]
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TOOLBIN=$(dirname $0)
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# Initialize tools environment variables, and define common utility functions
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. ${TOOLBIN}/engtools_util.sh
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tools_init
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if [ $? -ne 0 ]; then
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echo "FATAL, tools_init - could not setup environment"
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exit $?
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fi
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PAGE_SIZE=$(getconf PAGE_SIZE)
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# Enable use of INTERVAL_SEC sample interval
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OPT_USE_INTERVALS=1
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# Print key networking device statistics
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function print_memory {
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# Configuration for netcmds
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MEMINFO=/proc/meminfo
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NODEINFO=/sys/devices/system/node/node?/meminfo
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BUDDYINFO=/proc/buddyinfo
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SLABINFO=/proc/slabinfo
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print_separator
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TOOL_HIRES_TIME
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${ECHO} "# ${MEMINFO}"
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${CAT} ${MEMINFO}
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${ECHO}
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${ECHO} "# ${NODEINFO}"
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${CAT} ${NODEINFO}
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${ECHO}
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${ECHO} "# ${BUDDYINFO}"
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${CAT} ${BUDDYINFO}
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${ECHO}
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${ECHO} "# PSS"
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cat /proc/*/smaps 2>/dev/null | \
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awk '/^Pss:/ {a += $2;} END {printf "%d MiB\n", a/1024.0;}'
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${ECHO}
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# use old slabinfo format (i.e. slub not enabled in kernel)
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${ECHO} "# ${SLABINFO}"
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${CAT} ${SLABINFO} | \
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awk -v page_size_B=${PAGE_SIZE} '
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BEGIN {page_KiB = page_size_B/1024; TOT_KiB = 0;}
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(NF == 17) {
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gsub(/[<>]/, "");
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printf("%-22s %11s %8s %8s %10s %12s %1s %5s %10s %12s %1s %12s %9s %11s %8s\n",
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$2, $3, $4, $5, $6, $7, $8, $10, $11, $12, $13, $15, $16, $17, "KiB");
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}
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(NF == 16) {
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num_objs=$3; obj_per_slab=$5; pages_per_slab=$6;
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KiB = (obj_per_slab > 0) ? page_KiB*num_objs/obj_per_slab*pages_per_slab : 0;
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TOT_KiB += KiB;
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printf("%-22s %11d %8d %8d %10d %12d %1s %5d %10d %12d %1s %12d %9d %11d %8d\n",
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$1, $2, $3, $4, $5, $6, $7, $9, $10, $11, $12, $14, $15, $16, KiB);
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}
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END {
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printf("%-22s %11s %8s %8s %10s %12s %1s %5s %10s %12s %1s %12s %9s %11s %8d\n",
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"TOTAL", "-", "-", "-", "-", "-", ":", "-", "-", "-", ":", "-", "-", "-", TOT_KiB);
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}
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' 2>/dev/null
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${ECHO}
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${ECHO} "# disk usage: rootfs, tmpfs"
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cmd='df -h -H -T --local -t rootfs -t tmpfs'
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${ECHO} "Disk space usage rootfs,tmpfs (SI):"
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${ECHO} "${cmd}"
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${cmd}
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${ECHO}
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CMD='ps -e -o ppid,pid,nlwp,rss:10,vsz:10,cmd --sort=-rss'
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${ECHO} "# ${CMD}"
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${CMD}
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${ECHO}
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}
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#-------------------------------------------------------------------------------
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# MAIN Program:
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#-------------------------------------------------------------------------------
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# Parse input options
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tools_parse_options "${@}"
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# Set affinity of current script
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CPULIST=""
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set_affinity ${CPULIST}
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LOG "collecting ${TOOLNAME} for ${PERIOD_MIN} minutes, with ${INTERVAL_SEC} second sample intervals."
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# Print tools generic tools header
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tools_header
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# Calculate number of sample repeats based on overall interval and sampling interval
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((REPEATS = PERIOD_MIN * 60 / INTERVAL_SEC))
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for ((rep=1; rep <= REPEATS ; rep++)); do
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print_memory
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sleep ${INTERVAL_SEC}
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done
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print_memory
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LOG "done"
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# normal program exit
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tools_cleanup 0
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exit 0
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