From: Simon Martin <furryfuttock@gmail.com>
To: xen-devel@lists.xen.org
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Dario Faggioli <dario.faggioli@citrix.com>,
Nate Studer <nate.studer@dornerworks.com>,
Don Slutz <dslutz@verizon.com>,
Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: Strange interdependace between domains
Date: Fri, 14 Feb 2014 12:02:38 +0000 [thread overview]
Message-ID: <6010385428.20140214120238@gmail.com> (raw)
In-Reply-To: <295276356.20140213222507@gmail.com>
Hello Simon,
Thanks everyone and especially Ian! It was the hyperthreading that was
causing the problem.
Here's my current configuration:
# xl cpupool-list -c
Name CPU list
Pool-0 0,1
pv499 2,3
# xl vcpu-list
Name ID VCPU CPU State Time(s) CPU Affinity
Domain-0 0 0 0 r-- 16.6 0
Domain-0 0 1 1 -b- 7.3 1
win7x64 1 0 1 -b- 82.5 all
win7x64 1 1 0 -b- 18.6 all
pv499 2 0 3 r-- 226.1 3
I have pinned dom0 as I wasn't sure whether it belongs to Pool-0 (I
assume it does, can you confirm please).
Dario, if you are going to look at the
Looking at my timings with this configuration I am seeing a 1%
variation (945 milliseconds +/- 5). I think this can be attributable
to RAM contention, at the end of the day all cores are competing for
the same bus.
--
Best regards,
Simon mailto:furryfuttock@gmail.com
next prev parent reply other threads:[~2014-02-14 12:02 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-13 16:56 Strange interdependace between domains Simon Martin
2014-02-13 17:07 ` Ian Campbell
2014-02-13 17:28 ` Simon Martin
2014-02-13 17:39 ` Dario Faggioli
2014-02-13 17:36 ` Dario Faggioli
2014-02-13 20:47 ` Nate Studer
2014-02-13 22:25 ` Simon Martin
2014-02-13 23:13 ` Dario Faggioli
2014-02-14 10:26 ` Don Slutz
2014-02-14 12:02 ` Simon Martin [this message]
2014-02-14 13:26 ` Andrew Cooper
2014-02-14 17:21 ` Dario Faggioli
2014-02-17 12:46 ` Simon Martin
2014-02-18 16:55 ` Dario Faggioli
2014-02-18 17:58 ` Don Slutz
2014-02-18 18:06 ` Dario Faggioli
2014-02-20 6:07 ` Juergen Gross
2014-02-20 18:22 ` Dario Faggioli
2014-02-21 6:31 ` Juergen Gross
2014-02-21 17:24 ` Dario Faggioli
2014-02-24 9:25 ` Juergen Gross
2014-02-17 13:19 ` Juergen Gross
2014-02-17 15:08 ` Dario Faggioli
2014-02-18 5:31 ` Juergen Gross
2014-02-17 14:13 ` Nate Studer
2014-02-18 16:47 ` Dario Faggioli
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=6010385428.20140214120238@gmail.com \
--to=furryfuttock@gmail.com \
--cc=Ian.Campbell@citrix.com \
--cc=andrew.cooper3@citrix.com \
--cc=dario.faggioli@citrix.com \
--cc=dslutz@verizon.com \
--cc=nate.studer@dornerworks.com \
--cc=xen-devel@lists.xen.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;
as well as URLs for NNTP newsgroup(s).