From: nils toedtmann <user-mode-linux-devel@nils.toedtmann.net>
To: user-mode-linux-devel@lists.sourceforge.net
Subject: [uml-devel] Fighting latency
Date: Thu, 4 Nov 2004 16:50:16 +0100 [thread overview]
Message-ID: <20041104155015.GA29182@gandalf.intern.marcant.net> (raw)
Moin,
in some UMLs i run services which do not like latency, eg. VoIP- and gameserver.
I previously observed my UMLs going into meditation for a split second every few
seconds, but that bucking almost disappeard by taking the usual tuning steps
(SKAS, sysemu, $TMP on tmpfs). Nevertheless, my UMLs are still not as responsive
as i would like them to. It's not a matter of CPU or network performance. Host
and guest are >=95% idle all the time, bandwidth use is far from my UML-bench-
marks.
I tried to renice the UML processes, but seems not to help (it's hard to measure,
just the "feeling" while listening to audio or onlinegaming).
Any suggestions?
I enabled "PREEMPT" in host kernel. Maybe that's a bad idea?
/nils.
--
there is no sig.
-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
next reply other threads:[~2004-11-04 15:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-04 15:50 nils toedtmann [this message]
2004-11-04 23:44 ` [uml-devel] Fighting latency Blaisorblade
2004-11-05 2:54 ` Nuno Silva
2004-11-05 19:38 ` Blaisorblade
2004-11-06 6:08 ` Nuno Silva
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=20041104155015.GA29182@gandalf.intern.marcant.net \
--to=user-mode-linux-devel@nils.toedtmann.net \
--cc=user-mode-linux-devel@lists.sourceforge.net \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox