From: Keith Coleman <list.keith@scaltro.com>
To: xen-devel@lists.xensource.com
Subject: windows domU disk performance graph comparing hvm vs stubdom vs pv drivers
Date: Fri, 19 Feb 2010 17:41:32 -0500 [thread overview]
Message-ID: <5411dbdc1002191441q4becdba9o61168bc986533e6@mail.gmail.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 778 bytes --]
I am posting this to xen-devel instead of -users because it paints an
incomplete picture that shouldn't be the basis for deciding how to run
production systems.
This graph shows the performance under a webserver disk IO workload at
different queue depths. It compares the 4 main IO methods for windows
guests that will be available in the upcoming xen 4.0.0 and 3.4.3
releases: pure HVM, stub domains, gplpv drivers, and xcp winpv
drivers.
The gplpv and xcp winpv drivers have comparable performance with gplpv
being slightly faster. Both pv drivers are considerably faster than
pure hvm or stub domains. Stub domain performance was about even with
HVM which is lower than we were expecting. We tried a different cpu
pinning in "Stubdom B" with little impact.
Keith Coleman
[-- Attachment #2: comparison-iops-3.png --]
[-- Type: image/png, Size: 53266 bytes --]
[-- Attachment #3: Type: text/plain, Size: 138 bytes --]
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
next reply other threads:[~2010-02-19 22:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-19 22:41 Keith Coleman [this message]
2010-02-20 0:08 ` windows domU disk performance graph comparing hvm vs stubdom vs pv drivers Daniel Stodden
2010-02-20 0:50 ` Keith Coleman
2010-02-20 1:46 ` Daniel Stodden
2010-02-22 16:33 ` Stefano Stabellini
2010-02-22 17:14 ` Keith Coleman
2010-02-22 17:27 ` Stefano Stabellini
2010-02-22 21:13 ` Keith Coleman
2010-02-23 13:14 ` Stefano Stabellini
2010-02-23 14:44 ` Konrad Rzeszutek Wilk
2010-02-23 19:39 ` Pasi Kärkkäinen
2010-02-23 20:03 ` Konrad Rzeszutek Wilk
2010-02-23 20:47 ` Marco Sinhoreli
2010-02-23 21:06 ` Keith Coleman
2010-02-23 20:11 ` Keith Coleman
2010-02-23 19:38 ` Pasi Kärkkäinen
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=5411dbdc1002191441q4becdba9o61168bc986533e6@mail.gmail.com \
--to=list.keith@scaltro.com \
--cc=xen-devel@lists.xensource.com \
/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;
as well as URLs for NNTP newsgroup(s).