From: Shrikanth Hegde <sshegde@linux.ibm.com>
To: linux-kernel@vger.kernel.org, mingo@kernel.org,
peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, yury.norov@gmail.com,
kprateek.nayak@amd.com, iii@linux.ibm.com, corbet@lwn.net
Cc: sshegde@linux.ibm.com, tglx@kernel.org,
gregkh@linuxfoundation.org, pbonzini@redhat.com,
seanjc@google.com, vschneid@redhat.com, huschle@linux.ibm.com,
rostedt@goodmis.org, dietmar.eggemann@arm.com,
maddy@linux.ibm.com, srikar@linux.ibm.com, hdanton@sina.com,
chleroy@kernel.org, vineeth@bitbyteword.org, frederic@kernel.org,
arighi@nvidia.com, pauld@redhat.com, christian.loehle@arm.com,
tj@kernel.org, tommaso.cucinotta@gmail.com, maz@kernel.org,
rafael@kernel.org, rdunlap@infradead.org, kernellwp@gmail.com,
linux-doc@vger.kernel.org
Subject: [PATCH v5 01/24] sched/debug: Remove unused schedstats
Date: Thu, 25 Jun 2026 18:16:25 +0530 [thread overview]
Message-ID: <20260625124648.802832-2-sshegde@linux.ibm.com> (raw)
In-Reply-To: <20260625124648.802832-1-sshegde@linux.ibm.com>
nr_migrations_cold, nr_wakeups_passive and nr_wakeups_idle are not
being updated anywhere. So remove them.
These are per process stats. So updating sched stats version isn't
necessary.
Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
---
include/linux/sched.h | 3 ---
kernel/sched/debug.c | 3 ---
2 files changed, 6 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 35e6183ef615..fc6ecb3869dd 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -550,7 +550,6 @@ struct sched_statistics {
s64 exec_max;
u64 slice_max;
- u64 nr_migrations_cold;
u64 nr_failed_migrations_affine;
u64 nr_failed_migrations_running;
u64 nr_failed_migrations_hot;
@@ -563,8 +562,6 @@ struct sched_statistics {
u64 nr_wakeups_remote;
u64 nr_wakeups_affine;
u64 nr_wakeups_affine_attempts;
- u64 nr_wakeups_passive;
- u64 nr_wakeups_idle;
#ifdef CONFIG_SCHED_CORE
u64 core_forceidle_sum;
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 40584b27ea0c..f3a033b34ba0 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -1359,7 +1359,6 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
P_SCHEDSTAT(wait_count);
PN_SCHEDSTAT(iowait_sum);
P_SCHEDSTAT(iowait_count);
- P_SCHEDSTAT(nr_migrations_cold);
P_SCHEDSTAT(nr_failed_migrations_affine);
P_SCHEDSTAT(nr_failed_migrations_running);
P_SCHEDSTAT(nr_failed_migrations_hot);
@@ -1371,8 +1370,6 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
P_SCHEDSTAT(nr_wakeups_remote);
P_SCHEDSTAT(nr_wakeups_affine);
P_SCHEDSTAT(nr_wakeups_affine_attempts);
- P_SCHEDSTAT(nr_wakeups_passive);
- P_SCHEDSTAT(nr_wakeups_idle);
avg_atom = p->se.sum_exec_runtime;
if (nr_switches)
--
2.47.3
next prev parent reply other threads:[~2026-06-25 12:47 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-25 12:46 [PATCH v5 00/24] sched: Introduce cpu_preferred_mask and steal-driven vCPU backoff Shrikanth Hegde
2026-06-25 12:46 ` Shrikanth Hegde [this message]
2026-06-25 12:46 ` [PATCH v5 02/24] sched/docs: Document cpu_preferred_mask and Preferred CPU concept Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 03/24] kconfig: Provide PREFERRED_CPU option Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 04/24] cpumask: Introduce cpu_preferred_mask Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 05/24] sysfs: Add preferred CPU file Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 06/24] sched/core: allow only preferred CPUs in is_cpu_allowed Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 07/24] sched/fair: Select preferred CPU at wakeup when possible Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 08/24] sched/fair: load balance only among preferred CPUs Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 09/24] sched/fair: Pull the load on preferred CPU Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 10/24] sched/core: Keep tick on non-preferred CPUs until tasks are out Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 11/24] sched/core: Push current task from non preferred CPU Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 12/24] sched/debug: Add migration stats due to non preferred CPUs Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 13/24] virt/steal_monitor: Add documentation Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 14/24] virt: Introduce steal monitor driver Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 15/24] virt/steal_monitor: Restore to active on module disable Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 16/24] virt/steal_monitor: Define steal_monitor structure Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 17/24] virt/steal_monitor: Add control knobs for handling steal values Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 18/24] virt/steal_monitor: Compute work at regular intervals Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 19/24] virt/steal_monitor: Provide default method to get systemwide steal time Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 20/24] virt/steal_monitor: Provide default method to inc/dec preferred CPUs Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 21/24] virt/steal_monitor: Provide default method to get num of CPUs for steal ratio Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 22/24] virt/steal_monitor: Act on steal values at regular intervals Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 23/24] virt/steal_monitor: Add direction control Shrikanth Hegde
2026-06-25 12:46 ` [PATCH v5 24/24] virt/steal_monitor: Add design check of preferred subset of active Shrikanth Hegde
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