lkml.org 
[lkml]   [2005]   [Sep]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Hugh's alternate page fault scalability approach on 512p Altix
Hi!

> 2. The use rss and anon_rss deltas instead of atomic incs brings small
> performance enhancements in the lower cpu ranges (1-32) but hurt (%50
> performance drop at 512 processors) in the high range. The hurting may
> be due to the percularities of SGIs NUMA router architecture and the

I'd say that 50% drop at 512 CPUs is acceptable. I did not even
know we support that many CPUs.
Pavel

--
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-09-15 15:25    [W:0.048 / U:4.220 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site