January 2015 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] ci.inria.fr/pharo/ slow

by Ben Coman

thanks. its better now. On Thu, Jan 15, 2015 at 1:57 AM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > On 14 Jan 2015, at 14:28, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > > > > > On 14 Jan 2015, at 11:17, Ben Coman <btc(a)openInWorld.com> wrote: > > Just an observation that https://ci.inria.fr/pharo/ is really slow for > me. Minutes to bring up the text of the page, and still waiting for all > the graphics. > > https://ci.inria.fr/pharo-contribution/ is fine. > > > > I have opened a request with the ci server admins > > > It has been restarted. > > Marcus >

Jan. 14, 2015

Re: [Pharo-dev] Object>>logCr ?

by stepharo

asString is a conversion method. printString is not #foo crLog should print #foo and not 'foo' because it may be hyper importnt that you get a symbol and not a string Le 14/1/15 22:32, Alexandre Bergel a Ã©crit : > Hi! > > I like the new way to print things in the Transcript. But I am wondering, > Object>>logCr > self logCr: self printString > > why printString is used and not asString? > > âfooâ logCr prints âfooâ and not foo > > Cheers, > Alexandre

Jan. 14, 2015

Re: [Pharo-dev] Hosting the Pharo VM on MirageOS

by stepharo

Yes we would love that too!!! > Hi > > I've been exploring the possibility of hosting the Squeak/Pharo VM on MirageOS. MirageOS is a Unikernal or "Library OS" where rather than creating an executable to be run on Linux the compiler analyses dependencies right down through the device drivers and creates a kernel that can be booted on Amazon AWS EC2. > http://www.openmirage.org/ > http://queue.acm.org/detail.cfm?id=2566628 > http://blog.acolyer.org/2015/01/13/unikernels-library-operating-systems-for… > > It seems to me that having a Smalltalk hosed in this environment would be quite useful on a number of fronts: > * A simple build and deploy of Smalltalk to the cloud. The Mirage group is building unikernals from sources and then because they are small committing the entire kernel to GitHub and then pushing the kernel to AWS EC2. Web sites and APIs are an obvious application. http://amirchaudhry.com/from-jekyll-to-unikernel-in-fifty-lines/. > * Smalltalk on small devices. The Mirage group is running Xen with mirage on small Intel and ARM boards. See http://openmirage.org/blog/announcing-mirage-20-release/. > * These kernels can be very small, on the order of 0.25Meg for minimal HTTP servers with boot times in the ms range. A project called Jitsu https://github.com/MagnusS/jitsu modifies a DNS server to boot kernels in response to socket requests. The system making the request is unaware of the boot. > * The Mirage group envisions thousands of kernels running on a single Hypervisor with his speed inter-kernel communications. See http://openmirage.org/blog/update-on-vchan. The facilitates Smalltalk systems consisting of a swarm of communicating images where each image is single threaded and concurrency is via message passing. > > I've corresponded with the MirageOS group asking if they thought a language VM could be hosted on Mirage. The discussion is here: http://lists.xenproject.org/archives/html/mirageos-devel/2015-01/msg00053.h…. Assuming we understood each other it seems the answer is "yes that should be possible". > > My question is what would be involved on the Smalltalk side? I presume the effort is going to be mostly in the VM. Based on the conversation on the Mirage list I think the VM will need to be able to run a Library with an entry point called by Mirage. That seems similar to the " Embedding/VM as a DLL" project proposed here: http://www.mirandabanda.org/cogblog/cog-projects/. Is this project active? The comment indicates this is mostly refactoring & repackaging. Anyone have a perspective on this? > > Best regards > > Joerg > > > > >

Jan. 14, 2015

Re: [Pharo-dev] Access to Pharo/TxText

by stepharo

I do not think Igor will look at them. I can try but I'm a newbie there. so tag me. Stef Le 14/1/15 12:43, Marcus Denker a Ã©crit : > >> On 14 Jan 2015, at 00:30, Bernardo Ezequiel Contreras >> <vonbecmann(a)gmail.com <mailto:vonbecmann@gmail.com>> wrote: >> >> Hi, >> Could someone take a look at this >> >> https://pharo.fogbugz.com/f/cases/14632/Access-to-Pharo-TxText >> > > In general we need to organise: Who > - will review fixes for TxText that are on the issue tracker? > - commits them to the repo and give commit right to people? > - push and coordinate to have the latest in Pharo4? > > Right now, all TxText contributions are ignored. > > Marcus >

Jan. 14, 2015

Re: [Pharo-dev] Fixing DNU binding in GT and Nautilus

by stepharo

Thanks marcus I just open another one :( because I houtgh that my mail did go through. I will close it. Le 14/1/15 13:02, Marcus Denker a Ã©crit : > I have opened an issue for this: > > https://pharo.fogbugz.com/f/cases/14731/Fixing-DNU-binding-in-GT-and-Nautil… > > >> On 13 Jan 2015, at 20:11, stepharo <stepharo(a)free.fr >> <mailto:stepharo@free.fr>> wrote: >> >> Hi >> >> in nautilus method pane and GT, when I select a global variable such as >> >> SystemOrganization and press command B + N >> >> I get DNU binding. >> Apparently this DNU only happen when the name does not match any >> class substring >> Transcript or Undeclared will not raise an error because we have >> classes having name matching the expression. >> >> Fixed included. >> >> PS: I'm dead after 1h30 train delay (after giving 6 hours lecture) >> today. So this mail will be sent whenever I get connected. >> >> Stef >> <FixDNUBinding.cs> >

Jan. 14, 2015

Re: [Pharo-dev] Hosting the Pharo VM on MirageOS

by Alain Rastoul

Le 14/01/2015 21:12, Eliot Miranda a Ã©crit : > > > On Wed, Jan 14, 2015 at 3:15 AM, Ben Coman > <btc(a)openinworld.com > <mailto:btc@openinworld.com>> wrote: > > > On Wed, Jan 14, 2015 at 11:39 AM, Joerg Beekmann, DeepCove Labs > <joerg(a)deepcovelabs.com > <mailto:joerg@deepcovelabs.com>> wrote: > > Hi > > I've been exploring the possibility of hosting the Squeak/Pharo > VM on MirageOS. MirageOS is a Unikernal or "Library OS" where > rather than creating an executable to be run on Linux the > compiler analyses dependencies right down through the device > drivers and creates a kernel that can be booted on Amazon AWS EC2. > http://www.openmirage.org/ > http://queue.acm.org/detail.cfm?id=2566628 > http://blog.acolyer.org/2015/01/13/unikernels-library-operating-systems-for… > > It seems to me that having a Smalltalk hosed in this environment > would be quite useful on a number of fronts: > * A simple build and deploy of Smalltalk to the cloud. The > Mirage group is building unikernals from sources and then > because they are small committing the entire kernel to GitHub > and then pushing the kernel to AWS EC2. Web sites and APIs are > an obvious application. > http://amirchaudhry.com/from-jekyll-to-unikernel-in-fifty-lines/. > * Smalltalk on small devices. The Mirage group is running Xen > with mirage on small Intel and ARM boards. See > http://openmirage.org/blog/announcing-mirage-20-release/. > * These kernels can be very small, on the order of 0.25Meg for > minimal HTTP servers with boot times in the ms range. A project > called Jitsu https://github.com/MagnusS/jitsu modifies a DNS > server to boot kernels in response to socket requests. The > system making the request is unaware of the boot. > * The Mirage group envisions thousands of kernels running on a > single Hypervisor with his speed inter-kernel communications. > See http://openmirage.org/blog/update-on-vchan. The facilitates > Smalltalk systems consisting of a swarm of communicating images > where each image is single threaded and concurrency is via > message passing. > > I've corresponded with the MirageOS group asking if they thought > a language VM could be hosted on Mirage. The discussion is here: > http://lists.xenproject.org/archives/html/mirageos-devel/2015-01/msg00053.h…. > Assuming we understood each other it seems the answer is "yes > that should be possible". > > My question is what would be involved on the Smalltalk side? I > presume the effort is going to be mostly in the VM. Based on the > conversation on the Mirage list I think the VM will need to be > able to run a Library with an entry point called by Mirage. That > seems similar to the " Embedding/VM as a DLL" project proposed > here: http://www.mirandabanda.org/cogblog/cog-projects/. Is this > project active? The comment indicates this is mostly refactoring > & repackaging. Anyone have a perspective on this? > > Best regards > > Joerg > > > > Mirarge might be a good stepping stone, but ultimately I think we > want Cog running directly on the Xen "hardware" without Mirage. > Erlang and Haskell are languages that already do this. [1] We need > to get on that list at the bottom. > > > +1. I am trying to get funding to do this, including modifying the > execution model to provide excellent debugging facilities for > promise-style concurrency (adding scheme-like continuation support to > the VM, and allowing exception search to proceed from a promise to its > creating context, etc). > > Maybe a good starting place is SqueakNOS [2] since it is reported to > work with Grub and there is PVGrub [3] [4]. > > > I'm not sure. Xen has a special segmented memory model so assuming, as > the existing VMs do, a single contiguous heap is not a good match. Spur > on the other hand has good support for memory segmentation. Further, one > wants a high-performance VM, and Sista provides adaptive optimization > potentially with no warmup time because one can save an optimized image). > > I should say that starting in February I am changing to half-time at > Cadence. Half of my time is therefore available for me to bootstrap a > business around Pharo, Squeak and the Cog, Spur and Sista VMs. If this > is successful I hope to become independent full-time, or rather that I'm > in a Snalltalk-centric company if which I'm a co-founder. I'm working > with specific people in the community and one thing we imagine is a > company with close ties to Rmod. It would be vry nice to grow a company > where people completing their PhDs at Rmod had somewhere to go where > they could continue working with Pharo instead of going to Google et al. > There us a clear need for companies around Pharo that can contract to > provide technology services. Such a thing will take a while to ramp up, > but the time is ripe. > Those are really great news! For the Pharo system and for smalltalk too I think. Virtualization is the way to go for now, and it should perfectly fit with Pharo smalltalk (nice to hear that next vms will match too). I wish you success in your enterprise > btw, Did you see the discussion titled "Cog In The Cloud" > http://forum.world.st/Cog-in-the-cloud-td4796515.html#a4796520 > and a little bit extra at the bottom of this one... > https://www.marshut.net/kuimwz/cog-in-the-cloud.html > > [1] http://wiki.xenproject.org/wiki/Cloud_Operating_Systems > [2] http://wiki.squeak.org/squeak/1762 > [3] http://wiki.xen.org/wiki/PvGrub > [4] https://tech.mendix.com/linux/2014/09/06/pvgrub2/ > > http://ptgmedia.pearsoncmg.com/images/9780132349710/samplechapter/013234971… > > > > -- > best, > Eliot -- Regards, Alain

Jan. 14, 2015

Object>>logCr ?

by Alexandre Bergel

Hi! I like the new way to print things in the Transcript. But I am wondering, Object>>logCr self logCr: self printString why printString is used and not asString? âfooâ logCr prints âfooâ and not foo Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

Jan. 14, 2015

Fixing DNU binding in GT and Nautilus

by stepharo

Hi in nautilus method pane and GT, when I select a global variable such as SystemOrganization and press command B + N I get DNU binding. Apparently this DNU only happen when the name does not match any class substring Transcript or Undeclared will not raise an error because we have classes having name matching the expression. Fixed included. PS: I'm dead after 1h30 train delay (after giving 6 hours lecture) today. So this mail will be sent whenever I get connected. Stef

Jan. 14, 2015

[pharo-project/pharo-core] 2d8f01: 40445

by GitHub

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: 2d8f014d46a8d49e0b14256ac45f65800b8ca335 https://github.com/pharo-project/pharo-core/commit/2d8f014d46a8d49e0b14256a… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2015-01-14 (Wed, 14 Jan 2015) Changed paths: A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script445.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40445.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 40445 14726 Add support for loading special Class Var definitions https://pharo.fogbugz.com/f/cases/14726 14733 do not check for coding convention on addClassVariable: https://pharo.fogbugz.com/f/cases/14733 http://files.pharo.org/image/40/40445.zip

Jan. 14, 2015

[pharo-project/pharo-core]

by GitHub

Branch: refs/tags/40445 Home: https://github.com/pharo-project/pharo-core

Jan. 14, 2015