[ovirt-users] heavy webadmin

[Nathanaël Blanchet]

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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>         Users at ovirt.org <mailto:Users at ovirt.org>
>         http://lists.ovirt.org/mailman/listinfo/users
>
>
>
>
>     -- 
>     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
>
>
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-- 
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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