From: "John Hawkes" <hawkes@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH] top level scheduler domain for ia64
Date: Mon, 08 Nov 2004 17:31:06 +0000 [thread overview]
Message-ID: <00ba01c4c5b8$bb659eb0$6700a8c0@comcast.net> (raw)
In-Reply-To: <200410191427.27336.jbarnes@engr.sgi.com>
From: "Jesse Barnes" <jbarnes@engr.sgi.com>
> > So tell me who wants a value other than 6, and what is the value
> > that they want? I was hoping for some more specific advice in
> > the kernel-parameters.txt file. What's a good choice for a 16-node
> > machine? For a 128-node machine?
>
> I don't know. The original value I chose was 4, but I think Nick changed it
> to 6 to get more overlap. Any ideas John?
I haven't been able to get enough reliably reproducible performance numbers
using the recent -mm kernels to allow me to experiment with different
nodes-per-domain values. Using 6 and having an occasionally load-balancing
umbrella covering all the CPUs in the system seems to behave reasonably for
64p and above. I just haven't tried other values, other than once trying 32
and without that all-CPU umbrella, and that performance was bad.
John Hawkes
prev parent reply other threads:[~2004-11-08 17:31 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-19 21:27 [PATCH] top level scheduler domain for ia64 Jesse Barnes
2004-10-20 0:02 ` Nick Piggin
2004-10-20 17:48 ` Luck, Tony
2004-10-20 18:02 ` Nick Piggin
2004-10-20 18:03 ` Jesse Barnes
2004-10-21 14:11 ` Xavier Bru
2004-10-21 14:34 ` Nick Piggin
2004-10-28 9:29 ` Takayoshi Kochi
2004-10-28 15:26 ` Jesse Barnes
2004-11-01 6:35 ` Takayoshi Kochi
2004-11-01 17:07 ` Jesse Barnes
2004-11-01 17:16 ` Matthew Wilcox
2004-11-01 18:36 ` Jesse Barnes
2004-11-01 18:53 ` Luck, Tony
2004-11-01 19:02 ` Jesse Barnes
2004-11-01 19:45 ` Luck, Tony
2004-11-01 22:39 ` Jesse Barnes
2004-11-02 0:12 ` Zou, Nanhai
2004-11-02 7:36 ` Takayoshi Kochi
2004-11-02 8:48 ` Gerald Pfeifer
2004-11-02 9:31 ` Takayoshi Kochi
2004-11-02 21:31 ` Luck, Tony
2004-11-03 6:15 ` Takayoshi Kochi
2004-11-03 16:22 ` Jesse Barnes
2004-11-03 16:57 ` Luck, Tony
2004-11-03 17:04 ` Jesse Barnes
2004-11-08 17:31 ` John Hawkes [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='00ba01c4c5b8$bb659eb0$6700a8c0@comcast.net' \
--to=hawkes@sgi.com \
--cc=linux-ia64@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.