diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2025-04-22 12:16:28 +0200 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-12 07:09:12 -0400 |
| commit | 109e534e89adfe864ae7b0157681fe205dda4cab (patch) | |
| tree | d01b9def54abc4c0ba923b58e33626de8bfb2d3b /include | |
| parent | 6d4ad92278615de589f19734133e0fba42baa2be (diff) | |
sched/fair: Fix lag clamp
[ Upstream commit 6e3c0a4e1ad1e0455b7880fad02b3ee179f56c09 ]
Vincent reported that he was seeing undue lag clamping in a mixed
slice workload. Implement the max_slice tracking as per the todo
comment.
Fixes: 147f3efaa241 ("sched/fair: Implement an EEVDF-like scheduling policy")
Reported-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Tested-by: Shubhang Kaushik <shubhang@os.amperecomputing.com>
Link: https://patch.msgid.link/20250422101628.GA33555@noisy.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sched.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 5f00b5ed0f3b..eb1c4c347a5c 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -574,6 +574,7 @@ struct sched_entity { u64 deadline; u64 min_vruntime; u64 min_slice; + u64 max_slice; struct list_head group_node; unsigned char on_rq; |