May 2013 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] seaside 31 configuration not loading

by Camillo Bruni

thanks for the information. On 2013-05-27, at 09:19, Diego Lont <diego.lont(a)delware.nl> wrote: > Camillo, > > The official stable version of seaside is 3.0.8, that can be found in the Metacello repo. > location: 'http://www.squeaksource.com/MetacelloRepository' > As far as I know, this version is in the green. I see that some changes where made to Zinc-Seaside since I last checked â¦ but still. > > For 3.1 there is still some work that needs to be done on the configuration. I started with it, and Johan did some work on this too, but we didn't finish this work yet. When I have time again, I will try to fix the configuration and seaside 3.1 code for Pharo 2.0. The latest version can be found in the Seaside31 repo, http://squeaksource.com/Seaside31. > > On May 26, 2013, at 1:16 PM, Camillo Bruni wrote: > >> https://ci.inria.fr/pharo-contribution/job/Seaside/ is currently red. >> >> What is the "official" location of the seaside configuration? >> > >

May 27, 2013

Re: [Pharo-dev] Memory leaks with Spec?

by stephane ducasse

we found the problem. It is not spec but the EyeInspector polling update. So we should find a solution. Probably it should register WindowClosed and kill the process. Stef > Le 25/05/2013 13:59, Benjamin a Ã©crit : >> I am pretty sure to only use weak registration (why aren't all the >> registration weak btw ??) >> >> It may be a problem somewhere else :( > > I hit that problem a while ago. I couldn't find where it was holding the instances, even with the help of the strong pointer inspector :( (and trying to put everything weak, and doing unregister when closing windows, and...) > > The same code under plain Morphic has no memory leak. > > The only suspicion I had was looking at announcers on blocks... > > Thierry > -- > Thierry Goubier > CEA list > Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s > 91191 Gif sur Yvette Cedex > France > Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95 >

May 27, 2013

Re: [Pharo-dev] Keeping Pharo CPU usage low: how?

by phil＠highoctane.be

I was looking at the output of "top" for while and Pharo was trusting the top spot indeed. Well, I'll look at all that this evening and give back the impressions. I want to run several instances of Pharo on the box and it will for sure add up. Say, 20 x 2% gives an awful lot. Phil On Mon, May 27, 2013 at 10:07 AM, Norbert Hartl <norbert(a)hartl.name> wrote: > > Am 27.05.2013 um 09:49 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: > > BTW, load & cpu usage numbers can be very hard to interpret. > > > really? CPU usage is pretty easy and you can see this in most OSses > directly. 100% CPU usage is full :) Load isn't that much harder. It's just > the load of the scheduler queue. So if some needs a rule of thumb > > safe CPU load = number of cores/processes * 0.7 > theoretical optimal CPU load = number of core/processes > > Everything above should really be investigated because you entered the > zone where additional CPU load can drive your machine unresponsive. > You have less CPU usage but high load? Investigate I/O usage! > > I know you know that, Sven. I just wanted to mention it because this comes > up from time to time. Compared to memory consumption, CPU, scheduler and > I/O are easier targets IMHO. > > For Phil the point isn't the health of the system. It is EC2. You have to > pay for the CPU usage on EC2 so I think he had the impression there is room > for improvement. And indeed there is. But if you calculate it through it > isn't really a factor. > > Norbert > >

May 27, 2013

Re: [Pharo-dev] Keeping Pharo CPU usage low: how?

by phil＠highoctane.be

That feature I know of. It is a nice one for sure! Phil On Mon, May 27, 2013 at 9:58 AM, Norbert Hartl <norbert(a)hartl.name> wrote: > It includes as well a button to make a screenshot in the image :) > > Norbert > > Am 27.05.2013 um 09:56 schrieb "phil(a)highoctane.be" <phil(a)highoctane.be>: > > Thanks for the info. > > Norbert, I didn't knew about that UI thread handler in Seaside. I'll check > that out. > > Phil > > > On Mon, May 27, 2013 at 9:49 AM, Sven Van Caekenberghe <sven(a)stfx.eu>wrote: > >> Phil, >> >> On 27 May 2013, at 09:19, "phil(a)highoctane.be" <phil(a)highoctane.be> >> wrote: >> >> > I am currently experimenting with Pharo on Amazon EC2. >> > >> > I'd like to keep the CPU usage low for when Pharo hasn't anything >> special to do. >> > >> > At the moment, I see that Pharo uses 2-3% of the CPU when just blinking >> the caret. >> > >> > Is there a way to get that lower? Even if it means tweaking the VM. >> > >> > The OS is Ubuntu 12 LTS >> > >> > Thanks! >> >> It would definitively by better if we could get CPU usage when idle very >> close to 0%. >> >> But IMO the current situation is not really a problem. Actual load >> problems will still be caused by real load, not by idle instances. Anyway, >> that is what I see on production machines with multiple Pharo instances >> next to many other processes. >> >> Sven >> >> BTW, load & cpu usage numbers can be very hard to interpret. >> >> >> -- >> Sven Van Caekenberghe >> Proudly supporting Pharo >> http://pharo.org >> http://association.pharo.org >> http://consortium.pharo.org >> >> >> >> >> >> > >

May 27, 2013

Re: [Pharo-dev] Memory leaks with Spec?

by Goubier Thierry

Le 25/05/2013 13:59, Benjamin a Ã©crit : > I am pretty sure to only use weak registration (why aren't all the > registration weak btw ??) > > It may be a problem somewhere else :( I hit that problem a while ago. I couldn't find where it was holding the instances, even with the help of the strong pointer inspector :( (and trying to put everything weak, and doing unregister when closing windows, and...) The same code under plain Morphic has no memory leak. The only suspicion I had was looking at announcers on blocks... Thierry -- Thierry Goubier CEA list Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95

May 27, 2013

Re: [Pharo-dev] Keeping Pharo CPU usage low: how?

by Norbert Hartl

Am 27.05.2013 um 09:49 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: > BTW, load & cpu usage numbers can be very hard to interpret. really? CPU usage is pretty easy and you can see this in most OSses directly. 100% CPU usage is full :) Load isn't that much harder. It's just the load of the scheduler queue. So if some needs a rule of thumb safe CPU load = number of cores/processes * 0.7 theoretical optimal CPU load = number of core/processes Everything above should really be investigated because you entered the zone where additional CPU load can drive your machine unresponsive. You have less CPU usage but high load? Investigate I/O usage! I know you know that, Sven. I just wanted to mention it because this comes up from time to time. Compared to memory consumption, CPU, scheduler and I/O are easier targets IMHO. For Phil the point isn't the health of the system. It is EC2. You have to pay for the CPU usage on EC2 so I think he had the impression there is room for improvement. And indeed there is. But if you calculate it through it isn't really a factor. Norbert

May 27, 2013

Re: [Pharo-dev] Keeping Pharo CPU usage low: how?

by Marcus Denker

On May 27, 2013, at 9:47 AM, Norbert Hartl <norbert(a)hartl.name> wrote: > > Am 27.05.2013 um 09:19 schrieb "phil(a)highoctane.be" <phil(a)highoctane.be>: > >> I am currently experimenting with Pharo on Amazon EC2. >> >> I'd like to keep the CPU usage low for when Pharo hasn't anything special to do. >> >> At the moment, I see that Pharo uses 2-3% of the CPU when just blinking the caret. >> >> Is there a way to get that lower? Even if it means tweaking the VM. >> There is a "Server Mode" Setting in Pharo that reduces UI related pollingâ¦ Marcus

May 27, 2013

Re: [Pharo-dev] [Ann] New TxText version 1.0

by Marcus Denker

On May 27, 2013, at 9:22 AM, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > 2013/5/27 stephane ducasse <stephane.ducasse(a)free.fr> > in 30 I get an error asShortCutâ¦ DNU. > > > Maybe there is issue about it. Character>>asShortcut was lost during some update. Yes, there is an issue for that on the tracker: https://pharo.fogbugz.com/f/cases/10439/Keymapping-seems-to-be-out-of-sync-… Marcus

May 27, 2013

Re: [Pharo-dev] Keeping Pharo CPU usage low: how?

by Norbert Hartl

It includes as well a button to make a screenshot in the image :) Norbert Am 27.05.2013 um 09:56 schrieb "phil(a)highoctane.be" <phil(a)highoctane.be>: > Thanks for the info. > > Norbert, I didn't knew about that UI thread handler in Seaside. I'll check that out. > > Phil > > > On Mon, May 27, 2013 at 9:49 AM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Phil, > > On 27 May 2013, at 09:19, "phil(a)highoctane.be" <phil(a)highoctane.be> wrote: > > > I am currently experimenting with Pharo on Amazon EC2. > > > > I'd like to keep the CPU usage low for when Pharo hasn't anything special to do. > > > > At the moment, I see that Pharo uses 2-3% of the CPU when just blinking the caret. > > > > Is there a way to get that lower? Even if it means tweaking the VM. > > > > The OS is Ubuntu 12 LTS > > > > Thanks! > > It would definitively by better if we could get CPU usage when idle very close to 0%. > > But IMO the current situation is not really a problem. Actual load problems will still be caused by real load, not by idle instances. Anyway, that is what I see on production machines with multiple Pharo instances next to many other processes. > > Sven > > BTW, load & cpu usage numbers can be very hard to interpret. > > > -- > Sven Van Caekenberghe > Proudly supporting Pharo > http://pharo.org > http://association.pharo.org > http://consortium.pharo.org > > > > > >

May 27, 2013

Re: [Pharo-dev] Keeping Pharo CPU usage low: how?

by phil＠highoctane.be

Thanks for the info. Norbert, I didn't knew about that UI thread handler in Seaside. I'll check that out. Phil On Mon, May 27, 2013 at 9:49 AM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Phil, > > On 27 May 2013, at 09:19, "phil(a)highoctane.be" <phil(a)highoctane.be> wrote: > > > I am currently experimenting with Pharo on Amazon EC2. > > > > I'd like to keep the CPU usage low for when Pharo hasn't anything > special to do. > > > > At the moment, I see that Pharo uses 2-3% of the CPU when just blinking > the caret. > > > > Is there a way to get that lower? Even if it means tweaking the VM. > > > > The OS is Ubuntu 12 LTS > > > > Thanks! > > It would definitively by better if we could get CPU usage when idle very > close to 0%. > > But IMO the current situation is not really a problem. Actual load > problems will still be caused by real load, not by idle instances. Anyway, > that is what I see on production machines with multiple Pharo instances > next to many other processes. > > Sven > > BTW, load & cpu usage numbers can be very hard to interpret. > > > -- > Sven Van Caekenberghe > Proudly supporting Pharo > http://pharo.org > http://association.pharo.org > http://consortium.pharo.org > > > > > >

May 27, 2013