From: Kyle Bader <kyle.bader@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] vmware-server performance
Date: Fri, 12 Mar 2010 14:37:20 -0800 [thread overview]
Message-ID: <854dca5c1003121437v2cb5a244pca11d7c8bebd428c@mail.gmail.com> (raw)
In-Reply-To: <4B99EBCC.80709@xunil.at>
If the elevated iowait from iostat is on the host you might be able to
find something hogging you io bandwidth with iotop. Also look for D
state procs with ps auxr. Are you on a software raid?
If you are on linux soft raid you might check your disks for errors
with smartmontools. Other than that the only thing I can think of is
something like a performance regression in the ide/scsi/sata
controller (on host or virtual) or mdadm on host. If the host system
is bogged before starting vmware instances I would suspect the former
(host controller or mdadm).
On 3/11/10, Stefan G. Weichinger <lists@xunil.at> wrote:
> Am 11.03.2010 16:54, schrieb Kyle Bader:
>> If you use the cfq scheduler (linux default) you might try turning off
>> low latency mode (introduced in 2.6.32):
>>
>> Echo 0 > /sys/class/block/<device name>/queue/iosched/low_latency
>>
>> http://kernelnewbies.org/Linux_2_6_32
>
> That sounded good, but unfortunately it is not really doing the trick.
> The VM still takes minutes to boot ... and this after I copied it back
> to the RAID1-array which should in theory be faster than the
> noraid-partition before.
>
> Thanks anyway, I will test that setting ...
>
> Stefan
>
>
>
--
Sent from my mobile device
Kyle
next prev parent reply other threads:[~2010-03-12 22:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-10 19:47 [gentoo-user] vmware-server performance Stefan G. Weichinger
2010-03-11 15:54 ` Kyle Bader
2010-03-12 7:22 ` Stefan G. Weichinger
2010-03-12 22:37 ` Kyle Bader [this message]
2010-03-13 18:25 ` Stefan G. Weichinger
2010-03-18 21:16 ` Stefan G. Weichinger
2010-04-29 18:22 ` Stefan G. Weichinger
2010-04-30 14:41 ` Florian Philipp
2010-04-30 16:55 ` Stefan G. Weichinger
2010-05-03 9:25 ` Stefan G. Weichinger
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=854dca5c1003121437v2cb5a244pca11d7c8bebd428c@mail.gmail.com \
--to=kyle.bader@gmail.com \
--cc=gentoo-user@lists.gentoo.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox