[OOD-users] Performance issues

[Dan Dietz]

Eric,

Thanks for the quick response. You are right, it does not affect job
composer, although there is a bit of delay opening it at first.

A temporary patch would be most appreciated.

Thanks,
Dan

On Fri, Nov 9, 2018 at 11:29 AM Franz, Eric <efranz at osc.edu> wrote:

> Dan,
>
>
>
> From what you are describing, I would not expect it to affect the job
> composer. But I apologize, this is a big oversight on our part. I opened
> issues https://github.com/OSC/ood-dashboard/issues/417 and
> https://github.com/OSC/ood-dashboard/issues/418 to track this work.
>
>
>
> We knew that the dashboard is inefficient in the menu building process and
> it is something we were planning to fix in the next three months. But it
> looks like this is higher priority.
>
>
>
> The dashboard builds the menu dynamically on each request, instead of
> caching the information. This is great when you have multiple people doing
> app sharing or app development as the users PUN doesn’t have to be
> restarted to see a new app. It is also useful for an interactive app where
> description or title information changes system state. But those are edge
> cases, not the common case for most Open OnDemand sites. And as you observe
> it is problematic when the form.yml.erb contains expensive code.
>
>
>
> I can provide a patch you can use till the next release. I’ll follow up
> with that in another email.
>
>
>
> Thanks,
>
> Eric
>
>
>
> ---
>
> Eric Franz, Senior Web & Interface App Engineer
>
> Ohio Supercomputer Center
>
> An Ohio Technology Consortium (OH-TECH) Member
>
> 1224 Kinnear Road
>
> Columbus, OH 43212
>
> email: efranz at osc.edu
>
>
>
> *From: *OOD-users <ood-users-bounces+efranz=osc.edu at lists.osc.edu> on
> behalf of Dan Dietz via OOD-users <ood-users at lists.osc.edu>
> *Reply-To: *Dan Dietz <ddietz at purdue.edu>, User support mailing list for
> Open OnDemand <ood-users at lists.osc.edu>
> *Date: *Friday, November 9, 2018 at 10:59 AM
> *To: *"ood-users at lists.osc.edu" <ood-users at lists.osc.edu>
> *Subject: *[OOD-users] Performance issues
>
>
>
> I'm currently testing implementing OOD here and all has gone
> quite smoothly so far (really, very nice work, I'm really enjoying working
> with it). I'm having one issue now though. As I started making the apps
> (I've got 6 so far) use form.yml.erb and dynamically display the user's
> available queues (select instead of free-form text box) and dynamically
> pull in versions from modules, things have gotten progressively slower in
> the dashboard (in apps, job composer, just loading the home page, anything)
> as I've improved more apps. It probably takes 10 seconds to load any page
> now.
>
>
>
> Watching `top` on the server running OOD what I see are a ton of `qlist`
> (in-house command that lists eligible queues for the user the form template
> is using) processes flying by. What it feels like is the dashboard is
> building every dynamic form on every page load, even if I'm nowhere near
> any of the interactive apps.
>
>
>
> Am I doing something wrong or has anyone else seen this?
>
>
>
> Thanks!
>
> Dan
>
>
>
> --
>
> Dan Dietz
> Senior Scientific Applications Analyst
> ITaP Research Computing, Purdue University
>


-- 
Dan Dietz
Senior Scientific Applications Analyst
ITaP Research Computing, Purdue University
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