[rt-users] RT4 slowness

L B bertignac at gmail.com
Wed Jun 1 10:19:44 EDT 2011


Hi Kevin,

>> But it doesn't solve the slowness for Display.html page. Displaying a
>> ticket still need the 7seconds.
>
> All this patch will do is solve the once per child slowness of
> squishing the JS by reverting to simple concatenation.  Children
> should be answering multiple requests before being reaped and needing
> to resquish.
>
> If you're seeing this JS related slowness on every page, it points to
> other problems.

I checked some pages and I have these 7 seconds on at least:
- Login page
- Search/Simple.html
- Search/Build.html
- Tools/MyDay.html
- Admin/Users
- Admin/Tools/Configuration.html

Applying the patch above remove the slowness on all the pages except
the Display.html (showing ticket #1 with only one correspondance
inside, no attachments)

>
> Please provide details about your installation such as your apache
> versions and configuration otherwise it's quite difficult to
> test.  We've tried replicating in house, but haven't seen this in any
> of our test or production RT4 instances.

Apache 2.2.15, first email of the thread has all the details.

>
> If you're seeing particular slowness on a given page, RT4 contains a
> new feature to allow you (as an admin) to see if there are particular
> SQL statements causing problems.  Because it is debugging, it will
> cause other slowness in RT and should not be left on, but StatementLog
> will expose queries in the admin UI and allow you to see if something
> needs indexing or optimization.

We monitored at the database level the SQL statements and we didn't
find anything wrong.

-- 
L.B.



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