[ovirt-users] heavy webadmin
Nathanaël Blanchet
blanchet at abes.fr
Fri Apr 22 09:09:30 UTC 2016
Seems to be quite good!
Le 22/04/2016 00:14, Greg Sheremeta a écrit :
> Hi everyone,
>
> If you've experienced this issue and you're able to upgrade to 3.6.5,
> I'd love to get your feedback on the responsiveness of the webadmin UI
> now.
>
> Best wishes,
> Greg
>
>
> On Sun, Apr 3, 2016 at 11:13 AM, Greg Sheremeta <gshereme at redhat.com
> <mailto:gshereme at redhat.com>> wrote:
>
> We have patches in review that should fix this in 3.6.5. The
> underlying problem is a couple of JavaScript memory leaks.
>
> Best wishes,
> Greg
>
>
> On Fri, Jan 8, 2016 at 10:41 AM, Nir Soffer <nsoffer at redhat.com
> <mailto:nsoffer at redhat.com>> wrote:
>
> On Fri, Jan 8, 2016 at 4:42 PM, Alexander Wels
> <awels at redhat.com <mailto:awels at redhat.com>> wrote:
> > On Friday, January 08, 2016 04:29:47 PM Nir Soffer wrote:
> >> On Fri, Jan 8, 2016 at 1:13 PM, Nathanaël Blanchet
> <blanchet at abes.fr <mailto:blanchet at abes.fr>> wrote:
> >> > Hi all,
> >> >
> >> > Since I upgraded engine to 3.6, I noticed that the
> webadmin takes a lot of
> >> > ressources whatever is the browser. It can become very
> slow even for small
> >> > actions, like changing tabs or editing a vm. The browser
> activity becomes
> >> > intensive (100% of cpu) and the processor very hot with a
> increased fan
> >> > activity. I suppose javascript to be responsible of this
> behaviour. Is
> >> > there a way to reduce the resource allocated to the webadmin?
> >> > (This is not a weakness of my laptop which is an i7 cpu
> with 16GB of RAM)
> >>
> >> Sounds like https://bugzilla.redhat.com/1264809
> >>
> >> It was closed because we could not reproduce it with
> current versions.
> >>
> >> I would try first to upgrade to latest 3.6 version, and if
> you can reproduce
> >> it, please reopen this bug.
> >>
> >> Alexander: can you advice on how to debug this?
> >>
> >> Nir
> >
> > If you are willing to spend some time helping us debug that
> would be great as
> > obviously we are unable to reproduce. If you have Chrome,
> can you open the
> > development tools (ctrl-shift-i) and go to the 'Profiles'
> tab. That should give
> > you the option to 'Collect Javascript CPU Profile' among
> other things. Make
> > sure you select that, and click start. Then go in the web
> admin and do
> > something that makes your CPU spike. Let it go for a little
> bit doesn't have
> > to be long.
> >
> > Go back to the CPU profiles tab and click stop. That will
> generate a profile and
> > that profile will include the percentage of CPU usage per
> method. It should be
> > sorted by percentage. If you can take a screen shot of that
> and give me the
> > exact rpm version, I can use that to de-obfuscate the method
> name and
> > hopefully get some useful information.
>
> You can also save such profile to file, and attach it to the bug.
>
> When I reorted this, this was also reproducible in Firefox,
> and both profiles
> are attached to the bug.
>
> Nir
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>
>
>
>
> --
> Greg Sheremeta, MBA
> Red Hat, Inc.
> Sr. Software Engineer
> gshereme at redhat.com <mailto:gshereme at redhat.com>
> 919-741-4016 <tel:919-741-4016>
>
>
>
>
> --
> Greg Sheremeta, MBA
> Red Hat, Inc.
> Sr. Software Engineer
> gshereme at redhat.com <mailto:gshereme at redhat.com>
> 919-741-4016
>
>
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
--
Nathanaël Blanchet
Supervision réseau
Pôle Infrastrutures Informatiques
227 avenue Professeur-Jean-Louis-Viala
34193 MONTPELLIER CEDEX 5
Tél. 33 (0)4 67 54 84 55
Fax 33 (0)4 67 54 84 14
blanchet at abes.fr
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