El Thursday 31 December 2015, a les 00:58:10, Adam Reichold va escriure: > Hello again, > > Am 31.12.2015 um 00:21 schrieb Albert Astals Cid: > > El Wednesday 30 December 2015, a les 20:00:17, Ihar Filipau va escriure: > >> On 12/30/15, Albert Astals Cid <[email protected]> wrote: > >>> El Wednesday 30 December 2015, a les 17:04:42, Adam Reichold va escriure: > >>>> Hello again, > >>>> > >>>> as discussed in the code modernization thread, if we are going to make > >>>> performance-orient changes, we need a simple way to track functional > >>>> and > >>>> performance regressions. > >>>> > >>>> The attached patch tries to extend the existing Python-based regtest > >>>> framework to measure run time and memory usage to spot significant > >>>> performance changes in the sense of relative deviations w.r.t. to these > >>>> two parameters. It also collects the sums of both which might be used > >>>> as > >>>> "ball park" numbers to compare the performance effect of changes over > >>>> document collections. > >>> > >>> Have you tried it? How stable are the numbers? For example here i get > >>> for > >>> rendering the same file (discarding the first time that is loading the > >>> file > >>> into memory) numbers that range from 620ms to 676ms, i.e. ~10% variation > >>> without no change at all. > > Do you refer to the numbers provided by the patch or to manually running > e.g. pdftoppm? If you refer to the patch, which iteration counts did you > use?
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