2018-01-23 21:49 GMT+08:00 Mike Galbraith <efault@xxxxxx>: > On Tue, 2018-01-23 at 18:36 +0800, Wanpeng Li wrote: >> >> Thanks for having a try, Mike. :) Actually the two context1 tasks >> don't stack up on one logical cpu at the most of time which is >> observed by kernelshark. Do you have any idea why there is 4.5 times >> RESCHED IPIs which is mentioned in another reply for this thread? > > See resched_curr(). Yeah, I observe writer/reader pair is running on the same core sometimes after more digging. Thanks Mike! Regards, Wanpeng Li
