Messages in this thread | | | Date | Thu, 09 Jan 2014 14:59:19 -0500 | From | Rik van Riel <> | Subject | Re: [PATCH 4/5] x86: mm: Change tlb_flushall_shift for IvyBridge |
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On 01/09/2014 09:34 AM, Mel Gorman wrote: > There was a large performance regression that was bisected to commit 611ae8e3 > (x86/tlb: enable tlb flush range support for x86). This patch simply changes > the default balance point between a local and global flush for IvyBridge. > > In the interest of allowing the tests to be reproduced, this patch was > tested using mmtests 0.15 with the following configurations > > configs/config-global-dhp__tlbflush-performance > configs/config-global-dhp__scheduler-performance > configs/config-global-dhp__network-performance
> Based on these results, changing the default for Ivybridge seems > like a logical choice. > > Signed-off-by: Mel Gorman <mgorman@suse.de> > Reviewed-by: Alex Shi <alex.shi@linaro.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
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