lkml.org 
[lkml]   [2008]   [Mar]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Scalability requirements for sysv ipc
Hi all,

I've revived my Dual-CPU Pentium III/850:
I couldn't notice a scalability-problem (two cpus are around 190%, but
just the normal performance of 2.6.25-rc3 is abyssimal, 55 to 60% slower
than 2.6.18.8:

psem 2.6.18 2.6.25 Diff [%]
1 cpu 948.005 398.435 -57,97
2 cpus 1.768.273 734.816 -58,44
Scalability [%] 193,26 192,21

pmsg 2.6.18 2.6.25 Diff [%]
1 cpu 821.582 356.904 -56,56
2 cpus 1.488.058 661.754 -55,53
Scalability [%] 190,56 192,71

Attached are the .config files and the individual results.
Did I accidentially enable a scheduler debug option?

--
Manfred
[unhandled content-type:application/x-gzip]
\
 
 \ /
  Last update: 2008-03-22 20:11    [from the cache]
©2003-2011 Jasper Spaans