Messages in this thread | | | Date | Fri, 1 Jun 2018 15:20:55 +0200 | From | Peter Zijlstra <> | Subject | Re: 4.13..4.14 scheduling overhead regression (bisected - b956575bed91) |
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On Fri, Jun 01, 2018 at 02:57:53PM +0200, Mike Galbraith wrote: > b956575bed91ecfb136a8300742ecbbf451471ab is the first bad commit > commit b956575bed91ecfb136a8300742ecbbf451471ab > Author: Andy Lutomirski <luto@kernel.org> > Date: Mon Oct 9 09:50:49 2017 -0700 > > x86/mm: Flush more aggressively in lazy TLB mode
Oh boy... Maybe we should start looking at that optimization Andy mentioned.
IIRC all page freeing does indeed go through tlb_remove_page(), it shouldn't be too hard to make that work.
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