I have also done some performance testing on many of the gtk themes and engines found in Dapper. One surprise was that non cairo clearlooks was a hair faster than the smooth based engines.
On the wiki page below I posted a deb of gtkperf_0.40 which sounds similar to what Manu was using to do his tests. Gives output in realtime and I posted a pdf of my most recent batch of testing. 5 scores for each theme and an average below. https://wiki.ubuntu.com/Artwork/Incoming/Peace/PeaceGtkTheme Chuck On Wed, 2006-08-02 at 10:02 -0400, Viper550 wrote: > I decided to forward this pretty informing post I got on ubuntu-devel > this morning, Manu actually made a torture test for GTK themes and > Engines, and the results are pretty surprising. If you are concerned > about the speed of our Ubuntulooks engine, you might wanna check it out. > I am also trying to get him to test out Tropic; which uses the Murrine > engine, as Murrine is claimed to be the fastest Cairo based GTK engine ever. > > Viper550 > > -------- Original Message -------- > Subject: Human theme benchmarked > Date: Wed, 02 Aug 2006 15:41:41 +0200 > From: Manu Cornet <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > CC: Federico Mena Quintero <[EMAIL PROTECTED]> > > > > Hi all! > > I have been coding a small "torture" application for GTK themes [1], > which mainly does two things: 1) crash test the engine by calling all > the GTK paint functions with unsual parameters and 2) measure the time > the theme takes to create/map/expose/resize/destroy widgets (with help > from Federico's widget profiler's infrastructure). > > While this was mainly made for the OLPC theme (work in progress), I > thought you might be interested by how the Human theme performs with > this benchmark. There aren't any real surprises, but you might find this > report useful anyway. > > > The full report is available as a spreadsheet [2]. Before writing a > short analysis, a few disclaimers: > > * I tried my best to make the testing conditions as stable as possible: > same computer (of course), same programs running in the background, > tests performed within a small time window, etc. > > * The different time measures correspond to the few important events in > a widget's life: create, map, expose, destroy. The "expose with resize" > corresponds to resizing the widget a lot of times (from a very small > size to a very big size) and measuring the expose time for each size. > > * Each cell of the document is an amount of time (in seconds) averaged > from about 80 iterations of the same event, on the same type of widget. > > * Absolute time values aren't that useful, but ratios are more > interesting. > > > Okay, so a few observations: > > * Create: pretty much the same for all themes, within each type of > widget (ratios ~ 1). > > * Mapping a widget is always a bit slower for Human than for Clearlooks > (average ratio of 1.37, all values being close to this average). > > * Destroy is always slightly (about 30 %) faster on Human than on > Clearlooks, but still slower than HighContrast. Destroy time are pretty > much the same between OLPC and Human. > > * Expose is between 2 and 3 times slower with Human than with > Clearlooks, and also slower than the OLPC theme. > > * Expose with resize is the most CPU-consuming task, and therefore > probably yields the most significant results. Human is twice slower than > Clearlooks (but still 35 times faster than OLPC -- OLPC definitely has a > problem with resizing right now). Here, the details are interesting: > Human is just a little slower than Clearlooks on most widget types (1.1 > or 1.2 ratios), but much slower on some particular ones: GtkProgressBar > (5.5 times slower), GtkButton (5.5 as well), GtkNotebook (2). I'm not > very familiar with the Human theme's code, but these appear to be the > widgets that differ the most (visually -- glossy look) from Clearlooks, > so it probably won't be a surprise that they take more time to draw > (although 5 might be a big higher than expected). > > Hope this was useful :) > > Cheers, > Manu > > [1] > http://wiki.laptop.org/go/GTK_for_OLPC#GTK_theme.2Fengine_torturer_and_crash_tester > > [2] http://www.manucornet.net/pub/Themes_performance.ods > > > -- > ubuntu-devel mailing list > [EMAIL PROTECTED] > https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel > > > -- ubuntu-art mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-art
