WebAll f*cked from there. > > The problem was introduced with: > > d4af6d933ccf ("nohz: Fix spurious warning when hrtimer and clockevent get > out of sync") > > The changelog is not really helpful, but I can't see why the expiry time of > ts->sched_timer should be updated before the timer is [re]started in case > of HIGHRES + NOHZ. hrtimer_start() sets the … Webhrtimers and tasklets to make use of the precise expiry of hrtimers, which schedule a tasklet to bring the actual function into softirq context. This was introduced when the previous hrtimer softirq code was removed. That code was implemented by expiring the timer in hard irq context and then deferring the execution of the callback into softirq
[PATCH 10/25] hrtimer: Make handling of hrtimer …
http://plrg.eecs.uci.edu/git/?p=firefly-linux-kernel-4.4.55.git;a=blob;f=kernel/hrtimer.c;hb=532df780a2012ad75b3f078647f229c4dabd99d1 Web10 mei 2024 · 其中hrtimer_start_range_ns是最基础的方法。hrtimer_start是将range_ns默认设置为0。这两个函数可以在定时器第一次启动时使用。 hrtimer_restart是将超时时间设 … dsl-2750u firmware
Ftrace分析cpu idle被周期唤醒原因_lunhui2016的博客-程序员宝宝
WebThe expires_next stores now the first enqueued timer. Due to the adaption of the check_target function, remote enqueuing is now only possible when the expiry time is after the currently first expiry time independent of the active high resolution timers. WebReplace hrtimer based timer emulation with host timebase (ktime_t) comparisons on guest entry. This avoids host load when guests are scheduled out, removes a spinlock acquision on entry (i8254.c's inject_lock), and makes future improvements easier. Signed-off-by: Marcelo Tosatti commercial point united methodist church