Messages in this thread | | | From | Yiwei Lin <> | Subject | [PATCH 0/1] sched/fair: Update min_vruntime in more relaxed way | Date | Thu, 16 Nov 2023 18:54:24 +0800 |
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Because we only use min_vruntime as an offset to avoid overflow, and we will always update_curr() before making change to csf_rq. Unlike the requirement on CFS, I think it is possible to just update_min_vruntime() when update_curr(), which reduces the cost to evaluate the statistic.
It is worth metioning that maybe we can update_min_vruntime() in a more relaxed form according to this fact, but we may need more works to optimize in the future.
The following link shows some discussion which relates to this patch: https://lore.kernel.org/lkml/20231107090510.71322-1-wuyun.abel@bytedance.com/T/#mc277f045367f4186b34c83e636907ce2f5eb481e
Yiwei Lin (1): sched/fair: Update min_vruntime in more relaxed way
kernel/sched/fair.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-)
-- 2.34.1
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