[lkml]   [2014]   [Oct]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 0/8] x86: Disentangle the vdso and clean it up
On Mon, Oct 20, 2014 at 3:41 PM, Andy Lutomirski <> wrote:
> On Mon, Oct 20, 2014 at 3:03 PM, H. Peter Anvin <> wrote:
>> On 10/20/2014 02:57 PM, Andy Lutomirski wrote:
>>> Should I send a replacement for patch 8 or should I let you merge 1-7
>>> and fold this into the followup series?
>> Please send a replacement.
> Sending in a sec.
> Also, this is really weird. Unless I'm completely nuts, lsl is faster
> in KVM than it is on bare metal. This makes me wonder whether
> something's suboptimal about the way that the GDT is set up. sgdt is
> faster, too. This is Sandy Bridge E, one socket. The difference is
> big enough that tracking it down might be a significant win on context
> switches. Any hints?

This may just be a weird cpufreq artifact. I need to improve my test tools :/


 \ /
  Last update: 2014-10-21 07:21    [W:0.050 / U:3.588 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site