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SubjectRe: [PATCH] ACPI: Read TSC upon resume
Date
On Thursday, October 07, 2010, Greg KH wrote:
> On Thu, Oct 07, 2010 at 11:05:21AM -0700, Sameer Nanda wrote:
> > On Thu, Oct 7, 2010 at 10:46 AM, Greg KH <gregkh@suse.de> wrote:
> > > On Thu, Oct 07, 2010 at 10:43:34AM -0700, Sameer Nanda wrote:
> > >> On Wed, Oct 6, 2010 at 7:19 PM, Greg KH <gregkh@suse.de> wrote:
> > >> > And are you always going to be printing this out? Why do we want to
> > >> > know this every time?
> > >> >
> > >>
> > >> Yes, every time. This helps track variance in BIOS resume times within a
> > >> single boot.
> > >
> > > Is that really something that users can do something about?
> >
> > Aside from complaining to the BIOS vendors, no :)
>
> Then I would not recommend adding this patch, as it is irrelevant for
> 99.9999% of all Linux users.

It may be somewhat useful, but the rdtscll() call seems to be x86-specific, in
which case it shouldn't be used at this place.

Thanks,
Rafael


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