2010/10/16 Eliot Miranda <[email protected]>: > Hi Bart, Nicolas, > Bart, are you using the standard VM or Cog? > Nicolas, if this is the standard VM then do the two images have the same > value for allocationsBetweenGCs (Smalltalk vmParameterAt: 5)? If not, that > could account for the difference in incremental GC frequency (in Cog the IGC > trigger mechanism is different, based on space allocated not allocation > count). > > HTH > Eliot
Oh, comparison was not fair, I ran Squeak with COG. When I try COG+Pharo, some updates are missing, I can't print the VMstats. Nicolas > On Sat, Oct 16, 2010 at 6:37 AM, Nicolas Cellier > <[email protected]> wrote: >> >> I can feel this slugginess too, and we should fix that for good. >> >> A clue: in Squeak trunk, here are the VM stats: >> uptime 0h7m59s >> memory 59,647,648 bytes >> old 48,744,032 bytes (81.7%) >> young 545,352 bytes (0.9%) >> used 49,289,384 bytes (82.6%) >> free 10,358,264 bytes (17.4%) >> GCs 288 (1665ms between GCs) >> full 0 totalling 0ms (0.0% uptime) >> incr 288 totalling 486ms (0.0% uptime), avg 2.0ms >> tenures 15 (avg 19 GCs/tenure) >> Since last view -7,895 >> uptime 71.2s >> full -15 totalling -1,576ms (-2.0% uptime), avg >> 105.0ms >> incr -7880 totalling -1,952ms (-3.0% uptime), avg >> tenures -548 (avg 14 GCs/tenure) >> >> In Pharo: >> uptime 0h6m48s >> memory 29,690,612 bytes >> old 25,210,060 bytes (84.9%) >> young 252,096 bytes (0.8%) >> used 25,462,156 bytes (85.80000000000001%) >> free 4,228,456 bytes (14.200000000000001%) >> GCs 4,969 (82ms between GCs) >> full 3 totalling 834ms (0.2% uptime), avg >> 278.0ms >> incr 4966 totalling 6,280ms (1.5% uptime), avg 1.3ms >> tenures 75 (avg 66 GCs/tenure) >> Since last view 4,777 (85ms between GCs) >> uptime 404.5s >> full 1 totalling -285ms (-0.1% uptime), avg >> -285.0ms >> incr 4776 totalling 6,088ms (1.5% uptime), avg 1.3ms >> tenures 75 (avg 63 GCs/tenure) >> >> A GC every 82ms, 20x+ more GC than trunk... Something is going wrong. >> Could it be object creation at each event or something like that? >> >> Nicolas >> >> 2010/10/16 Sven Van Caekenberghe <[email protected]>: >> > Bart, >> > >> > On 16 Oct 2010, at 13:48, Bart Veenstra wrote: >> > >> >> Hi list, >> >> >> >> I have been working with Pharo for almost a month now, and I suspect >> >> that the performance is degrading fast. UI tasks takes several seconds >> >> to react to my keyboard. >> >> >> >> At work we use VAST and I have experience with VW as well and those >> >> smalltaks react to my keyboard and mouse actions instantly. But Pharo >> >> works very sluggish. >> >> >> >> My image is about 130MB because I have loaded all dutch postcode in >> >> memory, but that should not affect the performance of general >> >> operations like typing with the keyboard. I am not a fast typer, but >> >> sometimes it takes seconds to show my keyboard input. I can't use the >> >> down key to select the right method from suggestions, because it seems >> >> to lockup completely. >> >> >> >> Are there ways to speedup Pharo? I would love to use cogVM but I >> >> haven't got gemtools working on it... >> >> >> >> Will upgrading to 1.1.1 fix these issues? >> >> >> >> Is my OS (Windows 7-64bit) causing these issues? >> >> >> >> Regards, >> >> >> >> Bart >> > >> > I am just guessing here, but I would suspect the slowdown to be related >> > to completion/syntax coloring issues. >> > You could try a pharo core image or one of lukas's builds (take >> > development or seaside from http://hudson.lukas-renggli.ch/). >> > In a large/old image, there could be lots of issues, of course. >> > >> > HTH, >> > >> > Sven >> > >> > >> > >> > >> > _______________________________________________ >> > Pharo-project mailing list >> > [email protected] >> > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > >> >> _______________________________________________ >> Pharo-project mailing list >> [email protected] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > [email protected] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > _______________________________________________ Pharo-project mailing list [email protected] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
