xen-devel.lists.xenproject.org archive mirror
 help / color / mirror / Atom feed
From: Juergen Gross <juergen.gross@ts.fujitsu.com>
To: Dario Faggioli <dario.faggioli@citrix.com>
Cc: George Dunlap <george.dunlap@eu.citrix.com>,
	Massimo Canonico <mex@di.unipmn.it>,
	xen-devel@lists.xen.org
Subject: Re: CAP and performance problem
Date: Fri, 07 Jun 2013 06:45:49 +0200	[thread overview]
Message-ID: <51B1657D.10807@ts.fujitsu.com> (raw)
In-Reply-To: <1370527977.18519.275.camel@Solace>

On 06.06.2013 16:12, Dario Faggioli wrote:
> On gio, 2013-06-06 at 15:55 +0200, Massimo Canonico wrote:
>> On 06/06/2013 03:02 PM, Juergen Gross wrote:
>>> Could you try:
>>>
>>> xl vcpu-list; sleep 10; xl vcpu-list
>>>
>>> when the test is running and post the output?
>>>
>>>
>>> Juergen
>>>
>> here we go:
>>
>> [root@csitest ~]# xl vcpu-list; sleep 10; xl vcpu-list
>> Name                                ID  VCPU   CPU State   Time(s) CPU
>> Affinity
>> Domain-0                             0     0    0   ---      23.0  0
>> Domain-0                             0     1    0   ---      10.5  0
>> Domain-0                             0     2    0   ---       8.5  0
>> Domain-0                             0     3    0   r--       6.8  0
>> rubis-web                            1     0    2   r--    2968.5  2
>> Name                                ID  VCPU   CPU State   Time(s) CPU
>> Affinity
>> Domain-0                             0     0    0   ---      23.0  0
>> Domain-0                             0     1    0   r--      10.6  0
>> Domain-0                             0     2    0   ---       8.5  0
>> Domain-0                             0     3    0   ---       6.8  0
>> rubis-web                            1     0    2   r--    2973.5  2
>>
> So, rubis-web's vcpu ran for 5 secs, which sounds right. I see why
> Jurgen asked you to do that, but not how he plans to squeeze anything
> more than that from these numbers... Waiting for him to enlighten us
> again! ;-P

Just for the records: I only wanted to be sure the problem isn't in the xen
scheduler. And this seems to be proved by the numbers.


Juergen

-- 
Juergen Gross                 Principal Developer Operating Systems
PBG PDG ES&S SWE OS6                   Telephone: +49 (0) 89 3222 2967
Fujitsu Technology Solutions              e-mail: juergen.gross@ts.fujitsu.com
Domagkstr. 28                           Internet: ts.fujitsu.com
D-80807 Muenchen                 Company details: ts.fujitsu.com/imprint.html

  parent reply	other threads:[~2013-06-07  4:45 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-21  9:02 CAP and performance problem Massimo Canonico
2013-05-21 10:41 ` George Dunlap
2013-05-21 10:48   ` George Dunlap
2013-05-21 11:54     ` Massimo Canonico
2013-05-21 13:06       ` Dario Faggioli
2013-05-21 14:28         ` Massimo Canonico
2013-05-21 14:47           ` Dario Faggioli
2013-05-21 15:26             ` Massimo Canonico
2013-05-22 14:42             ` Massimo Canonico
2013-05-22 15:39               ` Dario Faggioli
2013-05-24  7:48                 ` Massimo Canonico
2013-06-04 14:03                   ` Massimo Canonico
2013-06-04 14:25                     ` Dario Faggioli
2013-06-05 16:50 ` Dario Faggioli
2013-06-05 17:11   ` Dario Faggioli
2013-06-05 17:05     ` Massimo Canonico
2013-06-06  8:37       ` Dario Faggioli
2013-06-06  8:57         ` Massimo Canonico
2013-06-06  9:52           ` Dario Faggioli
2013-06-06 10:39           ` Juergen Gross
2013-06-06 10:44             ` George Dunlap
2013-06-06 12:52               ` Massimo Canonico
2013-06-06 12:58                 ` George Dunlap
2013-06-06 13:02                 ` Juergen Gross
2013-06-06 13:55                   ` Massimo Canonico
2013-06-06 14:12                     ` George Dunlap
2013-06-06 14:12                     ` Dario Faggioli
2013-06-06 15:27                       ` Massimo Canonico
2013-06-06 15:42                         ` Dario Faggioli
2013-06-06 15:54                           ` Dario Faggioli
2013-06-06 16:27                             ` George Dunlap
2013-06-07  7:40                               ` Massimo Canonico
2013-06-07  4:45                       ` Juergen Gross [this message]
2013-06-06 13:03                 ` Dario Faggioli
2013-06-06 13:09                   ` Massimo Canonico
2013-06-06  9:02   ` George Dunlap
2013-06-06  9:48     ` 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=51B1657D.10807@ts.fujitsu.com \
    --to=juergen.gross@ts.fujitsu.com \
    --cc=dario.faggioli@citrix.com \
    --cc=george.dunlap@eu.citrix.com \
    --cc=mex@di.unipmn.it \
    --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).