lkml.org 
[lkml]   [2002]   [Aug]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Does Solaris really scale this well?
On Sun, Aug 18, 2002 at 12:03:24AM +0100, Ruth Ivimey-Cook wrote:
> >> "When you take a 99-way UltraSPARC III machine and add a 100th processor,
> >> you get 94 percent linear scalability. You can't get 94 percent linear
> >> scalability on your first Intel chip. It's very, very hard to do, and they
> >> have not done it."
>
> I've seen scientific reports of scalability that good in non-shared memory
> computers (mostly in transputer arrays) where (with a scalable algorithm)
> unless you got >90% you were doing something wrong. However, if you insist on
> sharing main memory, I still don't believe you can get anywhere near that...
> IMO 30% is doing very well once past the first few CPUs.

Please reconsider your opinion. Both Sun and SGI scale past 100 CPUs on
reasonable workloads in shared memory. Where "reasonable" != easy to do.
--
---
Larry McVoy lm at bitmover.com http://www.bitmover.com/lm
-
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: 2005-03-22 13:28    [W:0.072 / U:0.440 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site