Messages in this thread | | | Date | Wed, 30 Nov 2011 18:37:46 +0100 | From | Hans Rosenfeld <> | Subject | Re: [PATCH 0/9] rework of extended state handling, LWP support |
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On Tue, Nov 29, 2011 at 01:31:09PM -0800, Andi Kleen wrote: > Hans Rosenfeld <hans.rosenfeld@amd.com> writes: > > > > The lazy allocation of the xstate area has been removed. The support for > > extended states that cannot be saved/restored lazily, like AMD's LWP, > > need this. Since optimized library functions using SSE etc. are widely > > used today, most processes would have an xstate area anyway, making the > > memory overhead negligible. > > Do you have any data on that? It sounds dubious for specialized > workloads.
What kind of specialized workload do you mean?
Hans
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