Messages in this thread | | | Date | Sat, 20 Apr 2024 01:22:33 +0800 | From | Chen Yu <> | Subject | Re: [RFC PATCH] sched/eevdf: Return leftmost entity in pick_eevdf() if no eligible entity is found |
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On 2024-04-19 at 18:24:28 +0200, Peter Zijlstra wrote: > On Fri, Apr 19, 2024 at 06:04:25PM +0800, Chen Yu wrote: > > > > Also, could you put a few words in on how often these clips are hit? I > > > suspect it's fairly rare (but crucial when it does). > > > > Everytime it happens a subsequent NULL pointer exception usually happens. > > The trace data was posted here: > > That was not the question. Suppose I put a printk whenever the clamp() > actually changes the value, do I get a stormflood of output, or do I get > a sporadic blip.
I see, it is not a frequent clamp - around 5~30 clamp per CPU every second, when running trinity.
thanks, Chenyu
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