starlingx
/
config
Code Issues Proposed changes

Merge "Engineer IRQ affinity to decouple applications from platform"

This commit is contained in:
Zuul 2021-06-07 15:03:12 +00:00 committed by Gerrit Code Review
parent 012939c43a 6dc5215862
commit 81051adf46
1 changed files with 15 additions and 2 deletions
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17
sysinv/sysinv/sysinv/sysinv/puppet/platform.py
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@ -587,6 +587,12 @@ class PlatformPuppet(base.BasePuppet):
host, constants.ISOLATED_FUNCTION, threads=True)
app_isolated_cpuset = set([c.cpu for c in app_isolated_cpus])
# application cpus
app_cpus = self._get_host_cpu_list(
host, constants.APPLICATION_FUNCTION, threads=True)
app_cpuset = set([c.cpu for c in app_cpus])
app_ranges = utils.format_range_set(app_cpuset)
cpu_options = ""
cpu_ranges = {}
if constants.LOWLATENCY in host.subfunctions:
@ -604,10 +610,17 @@ class PlatformPuppet(base.BasePuppet):
cpu_ranges.update({
"isolcpus": isolcpus_ranges,
"rcu_nocbs": rcu_nocbs_ranges,
"kthread_cpus": platform_ranges,
"irqaffinity": platform_ranges
"kthread_cpus": platform_ranges
})
# Put IRQs on application cores if they are configured.
# Note that PCI IRQs for platform interfaces are reaffined to
# platform cores at runtime.
if app_cpuset:
cpu_ranges.update({"irqaffinity": app_ranges})
else:
cpu_ranges.update({"irqaffinity": platform_ranges})
for key, value in cpu_ranges.items():
if str(value).strip() != "":
cpu_options += "%s=%s " % (key, value)