lkml.org 
[lkml]   [2021]   [Jan]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 0/4] x86/bus_lock: Enable bus lock detection
Hi, Dear X86 Maintainers,

On Tue, Nov 24, 2020 at 08:52:41PM +0000, Fenghua Yu wrote:
> A bus lock [1] is acquired through either split locked access to
> writeback (WB) memory or any locked access to non-WB memory. This is
> typically >1000 cycles slower than an atomic operation within
> a cache line. It also disrupts performance on other cores.

This is a friendly reminder. Any comment on this series?

Thanks.

-Fenghua

\
 
 \ /
  Last update: 2021-01-04 20:44    [W:0.093 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site