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    SubjectRe: Patch 2.5.25: Ensure xtime_lock and timerlist_lock are on difft cachelines
    On Fri, Jul 26, 2002 at 05:56:19PM +1000, Rusty Russell wrote:
    > In message <> you write:
    > > This patch was not meant to be a definitive fix for do_gettimeofday.
    > > I thought having diffrent locks on the same cacheline was bad. Atleast,
    > > I don't think there'd be any negative performance impact due to my patch.
    > > Pls correct me if I am wrong.
    > Did you ever wonder why we don't declare spinlock to be ____cacheline_aligned?

    Yep...and for long enough...(I think..)..or there'd have been an RFC
    or a stupid question to lkml sometime from me :)

    > While it's probably justified in this case, you pay for it in a slight
    > increase in size...

    I thought you were of the opinion that "memory is cheap" ;-)

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