On Wed, Nov 10, 2021 at 07:36:37AM -0800, Georgi Djakov wrote:
> @@ -21,7 +19,18 @@ enum psi_task_count {
> * don't have to special case any state tracking for it.
> */
> NR_ONCPU,
> - NR_PSI_TASK_COUNTS = 4,
> + NR_BLK_CGROUP_THROTTLE,
> + NR_BIO,
> + NR_COMPACTION,
> + NR_THRASHING,
> + NR_CGROUP_RECLAIM_HIGH,
> + NR_CGROUP_RECLAIM_HIGH_SLEEP,
> + NR_CGROUP_TRY_CHARGE,
> + NR_DIRECT_COMPACTION,
> + NR_DIRECT_RECLAIM,
> + NR_READ_SWAPPAGE,
> + NR_KSWAPD,
> + NR_PSI_TASK_COUNTS = 16,
> };
>
> @@ -51,9 +80,20 @@ enum psi_states {
> PSI_MEM_FULL,
> PSI_CPU_SOME,
> PSI_CPU_FULL,
> + PSI_BLK_CGROUP_THROTTLE,
> + PSI_BIO,
> + PSI_COMPACTION,
> + PSI_THRASHING,
> + PSI_CGROUP_RECLAIM_HIGH,
> + PSI_CGROUP_RECLAIM_HIGH_SLEEP,
> + PSI_CGROUP_TRY_CHARGE,
> + PSI_DIRECT_COMPACTION,
> + PSI_DIRECT_RECLAIM,
> + PSI_READ_SWAPPAGE,
> + PSI_KSWAPD,
> /* Only per-CPU, to weigh the CPU in the global average: */
> PSI_NONIDLE,
> - NR_PSI_STATES = 7,
> + NR_PSI_STATES = 18,
> };
Have you considered what this does to psi_group_cpu's size and layout
and the impact thereof on performance?
