Messages in this thread | | | Date | Mon, 14 Mar 2022 11:55:12 +0100 | From | Peter Zijlstra <> | Subject | Re: [RESEND PATCH 2/2] perf/x86: improve the event scheduling to avoid unnecessary pmu_stop/start |
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On Thu, Mar 10, 2022 at 11:50:33AM +0800, Wen Yang wrote:
> As you pointed out, some non-compliant rdpmc can cause problems. But you > also know that linux is the foundation of cloud servers, and many > third-party programs run on it (we don't have any code for it), and we can > only observe that the monitoring data will jitter abnormally (the > probability of this issue is not high, about dozens of tens of thousands of > machines).
This might be a novel insight, but I *really* don't give a crap about any of that. If they're not using it right, they get to keep the pieces.
I'd almost make it reschedule more to force them to fix their stuff.
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