[rt-devel] REST performance drop after upgrade from 4.2.9 to 4.2.10

[Alex Vandiver]

On Mon, 30 Mar 2015 14:13:56 +0200 Christian Loos <cloos at netcologne.de>
wrote:
> after upgrading from 4.2.9 to 4.2.10 I noticed a drop in loading a
> ticket with REST from 3.5 to 6.0 seconds.
> At the same time, loading the same ticket with the WebUI remained stable
> at 1 second.
> This is from our (nearly unused) test system, so there are no side
> effects from many users using the WebUI or so.
> 
> I couldn't find any relevant changes between 4.2.9 and 4.2.10.
> 
> Maybe you have an idea what is going on here?

I'm not aware of any intentional changes in REST between 4.2.9 and
4.2.10 -- which implies that the performance drop is due to
second-order changes.

What is the content of the REST request?  If you start up a
single-threaded server with Devel::NYTProf on it and make the REST
request, where does it say the time is being spent?
 - Alex