- Pharo-dev - lists.pharo.org

[Pharo 9.0] Build #656: Revert "Variables-variable-not-binding"

by ci-pharo-ci-jenkins2＠inria.fr

There is a new Pharo build available! The status of the build #656 was: FAILURE. The Pull Request #7284 was integrated: "Revert "Variables-variable-not-binding"" Pull request url: https://github.com/pharo-project/pharo/pull/7284 Issue Url: https://github.com/pharo-project/pharo/issues/revert Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

Sept. 11, 2020

Re: [Pharo-dev] is there a way to know when a GC is happening?

by Martin McClure

Hi Aliaksei, In VW, scavenges are done automatically by the VM, but all heavier-weight GC is controlled by the image, through a MemoryPolicy object. In the GemStone client for VW we provide a memory policy that discourages GC during times when our mapping dictionaries are strong, deferring it to just after we make the dictionaries weak so the GC can actually collect things that are mapped but no longer used. It sounds like you'd like something very much like this, to tend to defer GC to a good point in the rendering cycle. And "tend to" is important -- when space is getting *really* low, it's a good idea to go ahead and do the GC regardless of whether it's a "good" time. Regards, -Martin On 9/10/20 1:41 AM, Aliaksei Syrel wrote: > Hi > > I wish there was a way to control *when* full GC is allowed to happen. > For example, I would prefer GC to occur while the UI rendering loop is > paused and not in the middle of the frame resulting in sometimes > sluggish animations in the case of large images. > > Thank you > > On Wed, 9 Sep 2020 at 14:39, StÃ©phane Ducasse > <stephane.ducasse(a)inria.fr <mailto:stephane.ducasse@inria.fr>> wrote: > > Hi > > I would to be able to see when an incremental GC is happening. > is there a way to know when a GC is happening? > > S. > > > -------------------------------------------- > StÃ©phane Ducasse > http://stephane.ducasse.free.fr / http://www.pharo.org > 03 59 35 87 52 > Assistant: Aurore Dalle > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley > <https://www.google.com/maps/search/40,+avenue+Halley?entry=gmail&source=g>, > > Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza > Villeneuve d'Ascq 59650 > France > > > > > > > > -- > Cheers, > Alex

Sept. 11, 2020

[Pharo 9.0] Build #655: SettingsTree-optimize-PragmaCollector

by ci-pharo-ci-jenkins2＠inria.fr

There is a new Pharo build available! The status of the build #655 was: FAILURE. The Pull Request #7289 was integrated: "SettingsTree-optimize-PragmaCollector" Pull request url: https://github.com/pharo-project/pharo/pull/7289 Issue Url: https://github.com/pharo-project/pharo/issues/SettingsTree Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

Sept. 10, 2020

[Pharo 9.0] Build #654: 7276-Better-comments-for-Point-methods

by ci-pharo-ci-jenkins2＠inria.fr

There is a new Pharo build available! The status of the build #654 was: FAILURE. The Pull Request #7285 was integrated: "7276-Better-comments-for-Point-methods" Pull request url: https://github.com/pharo-project/pharo/pull/7285 Issue Url: https://github.com/pharo-project/pharo/issues/7276 Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

Sept. 10, 2020

[Pharo 9.0] Build #653: More-PragmaCollector-Improvements

by ci-pharo-ci-jenkins2＠inria.fr

There is a new Pharo build available! The status of the build #653 was: SUCCESS. The Pull Request #7282 was integrated: "More-PragmaCollector-Improvements" Pull request url: https://github.com/pharo-project/pharo/pull/7282 Issue Url: https://github.com/pharo-project/pharo/issues/More Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

Sept. 10, 2020

Re: [Pharo-dev] is there a way to know when a GC is happening?

by Davide Grandi

Maybe it's undecidable. Now it happens when a memory space is full, and I think that memory spaces aren't dynamically configurable. Â Â Â Davide On 10/09/2020 10:41, Aliaksei Syrel wrote: > Hi > > I wish there was a way to control *when* full GC is allowed to happen. > For example, I would prefer GC to occur while the UI rendering loop is > paused and not in the middle of the frame resulting in sometimes > sluggish animations in the case of large images. > > Thank you > > On Wed, 9 Sep 2020 at 14:39, StÃ©phane Ducasse > <stephane.ducasse(a)inria.fr <mailto:stephane.ducasse@inria.fr>> wrote: > > Hi > > I would to be able to see when an incremental GC is happening. > is there a way to know when a GC is happening? > > S. > > -------------------------------------------- > StÃ©phane Ducasse > http://stephane.ducasse.free.fr/ http://www.pharo.org > 03 59 35 87 52 > Assistant: Aurore Dalle > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley > <https://www.google.com/maps/search/40,+avenue+Halley?entry=gmail&source=g>, > > Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza > Villeneuve d'Ascq 59650 > France > > -- > Cheers, > Alex -- Ing. Davide Grandi email : davide.grandi(a)email.it mobile : +39 339 7468 778 linkedin : http://linkedin.com/in/davidegrandi

Sept. 10, 2020

Re: [Pharo-dev] is there a way to know when a GC is happening?

by Aliaksei Syrel

Hi I wish there was a way to control *when* full GC is allowed to happen. For example, I would prefer GC to occur while the UI rendering loop is paused and not in the middle of the frame resulting in sometimes sluggish animations in the case of large images. Thank you On Wed, 9 Sep 2020 at 14:39, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Hi > > I would to be able to see when an incremental GC is happening. > is there a way to know when a GC is happening? > > S. > > > -------------------------------------------- > StÃ©phane Ducasse > http://stephane.ducasse.free.fr / http://www.pharo.org > 03 59 35 87 52 > Assistant: Aurore Dalle > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley > <https://www.google.com/maps/search/40,+avenue+Halley?entry=gmail&source=g> > , > Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza > Villeneuve d'Ascq 59650 > France > > > > > > > > -- Cheers, Alex

Sept. 10, 2020

Re: [Pharo-dev] is there a way to know when a GC is happening?

by Davide Grandi

If Pharo's gc algorithm is concurrent => maybe yes, otherwise surely no : if I'm not wrong gc starts inside VM when checking allocation spaces during a basicNew or alike. And the VM seems stuck, at that moment. One can try to create an ephemeron and check it every 100-500 ms, refreshing it if it's still here (so it will stay in new space). But it shift the question to the definitive target group : the VM guys !!! Chers from Lombardy, Â Â Â Davide (PS : but creating the ephemeron could start an invisible gc !!!) On 09/09/2020 13:38, StÃ©phane Ducasse wrote: > Hi > > I would to be able to see when an incremental GC is happening. > is there a way to know when a GC is happening? > > S. > -------------------------------------------- > StÃ©phane Ducasse > http://stephane.ducasse.free.fr/ http://www.pharo.org > 03 59 35 87 52 > Assistant: Aurore Dalle > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley, > Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza > Villeneuve d'Ascq 59650 > France > -- Ing. Davide Grandi email : davide.grandi(a)email.it mobile : +39 339 7468 778 linkedin : http://linkedin.com/in/davidegrandi

Sept. 10, 2020

Re: [Pharo-dev] is there a way to know when a GC is happening?

by Martin McClure

On 9/9/20 8:43 PM, Esteban Maringolo wrote: > On Wed, Sep 9, 2020 at 11:58 PM Eliot Miranda <eliot.miranda(a)gmail.com> wrote: > >> In VisualWorks, for example, a WeakArray is primed with an Object instance, and this gets collected every scavenge. >> So the WeakArray is notified. From this VW builds a notification system. > I guess this is how VisualWorks changes its cursor from a regular > pointer to the, sometimes dreadful, "GC" icon during garbage > collection. > Isn't it? > No, that wouldn't work. Notification based on a weak array can only notify after the scavenge (or other GC) has happened, at which point it's too late to put up the GC cursor. And a weak array doesn't seem like it could be reliable for notification of scavenge -- what if the Object in the weak array gets tenured? Then only an incremental or full GC could collect it and notify. Scavenge notification is done by the VM signaling a semaphore that a scavenge notification thread is waiting on. And the GC cursor is simple -- it's explicitly set by Smalltalk code before a compacting GC, and set back afterward. Regards, -Martin

Sept. 10, 2020

Re: [Pharo-dev] is there a way to know when a GC is happening?

by Eliot Miranda

On Wed, Sep 9, 2020 at 9:49 PM Esteban Maringolo <emaringolo(a)gmail.com> wrote: > On Wed, Sep 9, 2020 at 11:58 PM Eliot Miranda <eliot.miranda(a)gmail.com> > wrote: > > > In VisualWorks, for example, a WeakArray is primed with an Object > instance, and this gets collected every scavenge. > > So the WeakArray is notified. From this VW builds a notification system. > > I guess this is how VisualWorks changes its cursor from a regular > pointer to the, sometimes dreadful, "GC" icon during garbage > collection. > Isn't it? > I think so :-) > > Regards! > > Esteban A. Maringolo > and to you, Esteban! _,,,^..^,,,_ best, Eliot

Sept. 10, 2020