Are those negative numbers in the Squeak stats? ________________________________________ From: pharo-project-bounces@lists.gforge.inria.fr [pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Nicolas Cellier [nicolas.cellier.aka.nice@gmail.com] Sent: Saturday, October 16, 2010 9:37 AM To: Pharo-project@lists.gforge.inria.fr Subject: Re: [Pharo-project] Speeding up Pharo 1.1 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 <sven@beta9.be>:
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
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