Messages in this thread | | | Date | Tue, 19 Jun 2018 19:32:49 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH v10 1/7] x86/tsc: remove tsc_disabled flag |
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On Fri, 15 Jun 2018, Pavel Tatashin wrote:
> tsc_disabled is set when notsc is passed as kernel parameter. The reason we > have notsc is to avoid timing problems on multi-socket systems. We already > have a mechanism, however, to detect and resolve these issues by invoking > tsc unstable path. Thus, make notsc to behave the same as tsc=unstable.
notsc also excludes TSC from being used at all, while with your change its suddenly used in sched_clock().
I'm not opposed to that change but the changelog is completely misleading as it suggest that this is a change which has no functional impact.
Thanks,
tglx
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