[Qgis-psc] Performance regressions (was QGIS 2.18 bug fixing effort)

[Neumann, Andreas]

Hi Nyall, Giovanni, 

I wonder if we could have/introduce an automated test suite for checking
performance regressions (e.g. in rendering, table loading, project
loading). Would this be feasible to have? Just wondering. 

Or is something like this already available and I am not aware of it? 

Greetings, 

Andreas 

On 2017-05-24 13:49, Nyall Dawson wrote:

> On 24 May 2017 at 07:24, Giovanni Manghi <giovanni.manghi at gmail.com> wrote: So to confirm - these times include the QGIS launch times and the
> layer load time? 
> 
> yes, I understand is not ideal and can show clearly large differences
> in total qgis start + load layer time.

Just a follow up:

I've tested using Giovanni's dataset and the render times for me
remain more or less static from 2.14.0 -> 2.18.8, taking 18 +/- 1
second. I'm confident there's no regression there (haven't tested
master yet - that still needs doing).

Next up I'll run through a similar set of tests checking layer load
times. It's possible this is where the regression lies.

Nyall
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