new testing: ---- SERVER KERNEL ---- --prints r875 0.04898 r822ini 0.03070 1.60x --silent r875 0.04914 r822ini 0.03049 1.61x
So I get much more consistent results on this hardware. While this is obviously not the best perfomance (my weaker box, with less RAM, troubled with video output 1280x1024, software 90deg rotation - performs BETTER), that does not matter. What does - is that I can now be sure that these results are noise-free so I can safely compare timings from various patches. Proceeding with writing 'inits v2'. On Tue, Jun 9, 2009 at 10:43 AM, Alexey Nezhdanov<[email protected]> wrote: > Ok. Now the confusion is resolved. > 1) Speed improvements of 70% and up that I reported yesterday are > really exist. I just reproduced a 3.47 times model speedup and 2.15 > overall speedup for my app (r875 vs r822+inits). > BUT this app is atypical. I have added some time measuring code there > so it prints out two lines per each model init. So when I am testing > perfomance - screen very quickly scrolls up > > 2) Simply commenting out two print statements gives me only 1.67 > overall speedup given equal other conditions. I think that processor > receive additional interrupts from videocard that in turn results in > more often checks of tasks queue. > > 3) I declare all my previous testing results spoiled by noise > generated by print statement and inappropriate kernel scheduler > setting. > I've set up yet another test box with these parameters: > > Intel Core2 Duo 2.66GHz, 2G RAM, Ubuntu 9.04, 'server' flavour kernel > 2.6.28-11.42. Initially I considered to install a 'realtime' kernel, > but it appeared to be unstable on that hardware (and afterall - it's > for sound/video processing and 'server' type is more likely to be > installed on servers). > > Will report new testing results (and finally I hope to write > 'optimised inits ver.2' patch) later today. > > On Tue, Jun 9, 2009 at 5:14 AM, mdipierro<[email protected]> wrote: >> >> Please try launchpad 893. I think it should be faster on GAE. >> We can do better with lazy tables but at least the validators and >> calls to getitem are eliminated. >> >> Massimo >> >> On Jun 8, 1:05 pm, Markus Gritsch <[email protected]> wrote: >>> On Mon, Jun 8, 2009 at 5:54 PM, mdipierro<[email protected]> wrote: >>> >>> > the web2py in trunk can execute models 2.5x faster than the current >>> > stable/production version (requires migrate=False and bytecode >>> > compiled models). >>> >>> Will this speedup also has an effect on GAE? IMO one uploads no .pyc files? >>> >>> Markus >> >> >> > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "web2py Web Framework" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/web2py?hl=en -~----------~----~----~----~------~----~------~--~---
