Messages in this thread | | | Date | Mon, 8 Jan 2018 21:39:20 +0100 | From | Willy Tarreau <> | Subject | Re: Feedback on 4.9 performance after PTI fixes |
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On Mon, Jan 08, 2018 at 09:26:10PM +0100, Yves-Alexis Perez wrote: > On Mon, 2018-01-08 at 19:26 +0100, Willy Tarreau wrote: > > You're totally right, I discovered during my later developments that > > indeed PCID is not exposed there. So we take the hit of a full TLB > > flush twice per syscall. > > So I really think it might make sense to redo the tests with PCID, because the > assumptions you're basing your patch series on might actually not hold.
I'll have to do it on the bare-metal server soon anyway.
Cheers, Willy
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