<html><head></head><body><div>On Thu, 2024-02-15 at 13:07 -0500, Philip Cox wrote:</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div><br></div><div>BugLink: BugLink: <a href="https://bugs.launchpad.net/bugs/2053251">https://bugs.launchpad.net/bugs/2053251</a><br></div><div><br></div><div>SRU Justification:<br></div><div><br></div><div>[Impact]<br></div><div>On high core count systems, the updating of the load average can happen so<br></div><div>often that it impacts performance.<br></div><div><br></div><div>[Fix]<br></div><div>Reduce the updating of the load average to at most once per millisecond.<br></div><div><br></div><div><br></div><div>[Test Plan]<br></div><div>I have tested this patch, as has Intel.<br></div><div><br></div><div>[Where problems could occur]<br></div><div>The risk for regression is low as it is a fairly targetted change, and is just reducing the number<br></div><div>of times that the load average is updated.<br></div><div><br></div><div>--<br></div><div><br></div><div><br></div><div>Aaron Lu (1):<br></div><div> sched/fair: Ratelimit update to tg->load_avg<br></div><div><br></div><div> kernel/sched/fair.c | 13 ++++++++++++-<br></div><div> kernel/sched/sched.h | 1 +<br></div><div> 2 files changed, 13 insertions(+), 1 deletion(-)<br></div><div><br></div></blockquote><div><br></div><div><span></span></div></body></html>