Messages in this thread | | | Subject | Re: Slowdown with randomize_va_space in 2.6.12.2 | From | Arjan van de Ven <> | Date | Wed, 06 Jul 2005 23:00:06 +0200 |
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On Wed, 2005-07-06 at 12:57 -0700, David S. Miller wrote: > From: Paulo Marques <pmarques@grupopie.com> > Date: Wed, 06 Jul 2005 15:23:56 +0100 > > > What is weird is that most of the extra time is being accounted as > > user-space time, but the user-space application is exactly the same in > > both runs, only the "randomize_va_space" parameter changed. > > It might be attributable to more cpu cache misses in userspace since > the virtual addresses of everything are changing each and every > invocation.
also x86 technically is pipt so virtual addresses shouldn't matter...
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