lkml.org 
[lkml]   [2013]   [Jun]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/6] ipc/sem.c: performance improvements, FIFO
From
Date
On Sat, 2013-06-15 at 09:30 +0200, Mike Galbraith wrote:

> Gee, just trying to flip back to a single semaphore lock mode if you had
> to do the global wait thing fixed up -rt.

But master wants a sharper rock tossed at it, it's still unstable.

Result matrix:
Thread 0: 11190947
Thread 1: 11743861
Thread 2: 10039223
Thread 3: 9776111
Thread 4: 9734815
Thread 5: 9941121
Thread 6: 11604118
Thread 7: 11716281
Thread 8: 9828587
Thread 9: 9589199
...

And that's one of the better samples. Probably -rt sleepy locks help
get us flipped back to single sem lock mode.

Hohum. On the bright side, -rt gets to scale better than mainline for a
little while, that's kinda different.

-Mike



\
 
 \ /
  Last update: 2013-06-15 10:41    [W:0.083 / U:0.432 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site