Posts tagged “cgroup”
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Pinned to CPUs 0-7 but running only on 2-3: how Linux cpusets narrow your affinity mask
The kernel silently intersects your sched_setaffinity mask with the CPUs your cpuset/cgroup allows and the CPUs that exist. How to see the real set and diagnose EINVAL, per the man pages.
Reading Linux PSI: some, full, avg and total in /proc/pressure
What some and full, avg10/avg60/avg300 and total in /proc/pressure measure, how PSI differs from iowait, and the limits on pressure triggers, based on the kernel documentation.
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