76e270ef96
CPU distribution mechanism should be changed due
to incorect requirements to nova and dpdk CPUs allocation
Changes:
* Change CPU distribution
* Add function for recognizing DPDK NICs for node
* Remove requirement of enabled hugepages for
DPDK NICs (it's checked before deployment)
* Change HugePages distribution. Now it take into
account Nova CPUs placement
Requirements Before:
DPDK's CPUs should be located on the same NUMAs as
Nova CPUs
Requirements Now:
1. DPDK component CPU pinning has two parts:
* OVS pmd core CPUs - These CPUs must be placed on the
NUMAs where DPDK NIC is located. Since DPDK NIC can
handle about 12 Mpps/s and 1 CPU can handle about
3 Mpps/s there is no necessity to place more than
4 CPUs per NIC. Let's name all remained CPUs as
additional CPUs.
* OVS Core CPUs - 1 CPU is enough and that CPU should
be taken from any NUMA where at least 1 OVS pmd core
CPU is located
2. To improve Nova and DPDK performance, all additional CPUs
should be distributed along with Nova's CPUs as
OVS pmd core CPUs.
Change-Id: Ib2adf39c36b2e1536bb02b07fd8b5af50e3744b2
Closes-Bug: #1584006
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|---|---|---|
| .. | ||
| __init__.py | ||
| cpu_distribution.py | ||
| hugepages_distribution.py | ||
| merge.py | ||
| name_match.py | ||