lkml.org 
[lkml]   [2017]   [Dec]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [patch 55/60] x86/mm: Use INVPCID for __native_flush_tlb_single()
    On Tue, Dec 05, 2017 at 05:51:28AM -0800, Dave Hansen wrote:
    > On 12/04/2017 02:51 PM, Peter Zijlstra wrote:
    > > We should find some of the benchmarks that were used to determine
    > > tlb_single_page_flush_ceiling and measure. I've not gotten around to
    > > doing either.
    > >
    > > Someone called Dave Hansen did that patch and might still have something
    > > lying around to help with that:
    > >
    > > a5102476a24b ("x86/mm: Set TLB flush tunable to sane value (33)")
    >
    > I hate git. :)

    :-)

    > But, yeah, we have certainly changed enough variables to necessitate
    > measuring it again.

    Its more than that, I think much of that could show if it makes sense to
    use invpcid_flush_one() at all.

    \
     
     \ /
      Last update: 2017-12-05 15:10    [W:3.344 / U:0.124 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site