Messages in this thread | | | Date | Tue, 5 Nov 2019 11:05:45 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH] smpboot: reuse timer calibration |
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On Tue, 29 Oct 2019, Peter Zijlstra wrote: > On Tue, Oct 29, 2019 at 03:19:57PM +0100, Paul Menzel wrote: > > From: Arjan van de Ven <arjan@linux.intel.com> > > Date: Wed, 11 Feb 2015 17:28:14 -0600 > > > > NO point recalibrating for known-constant tsc ... > > saves 200ms+ of boot time. > > > > Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> > > --- > > > > Arjan, can your Signed-off-by line be added? On what device, did you test > > this? > > This patch makes no sense what so ever given the current function, also > it hard codes 0 as being the BSP. > > All of this for platforms (!constant_tsc) that barely exist anymore.
And it's only an issue on multi-socket systems with !constant_tsc, which are even more rare.
Thanks,
tglx
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