Re: [PATCH] sched/psi: add cpu_prio pressure metric for high-priority task stalls
Michal Koutný <[email protected]>
| Newsgroups | gmane.linux.documentation,gmane.linux.kernel,gmane.linux.kernel.cgroups |
|---|---|
| Message-ID | <[email protected]> |
Hello. On Tue, Aug 11, 2026 at 06:46:10PM +0800, shisiyuan <[email protected]> wrote: > From: shisiyuan <[email protected]> > > Introduce a new PSI (Pressure Stall Information) indicator that > measures how much walltime priority-sensitive tasks spend waiting > for CPU, exposed as /proc/pressure/cpu_prio alongside the existing > io/memory/cpu/irq metrics. You can "just" put the priority-sensitive tasks into a cgroup (no cpu controller needed) and track the per-cgroup PSI values. HTH, Michal
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