July 2010 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Optimize Pharo for slow horse

by Hilaire Fernandes

Le 12/07/2010 16:55, Alain Plantec a Ã©crit : >> - larger font size (at least 12pt) > you can load the full DejaVu strikefont package from squeaksource (CUIS > fonts). > It includes dejaVu of size 6,7,8,9,10,11,12,14,17 and 22. > > http://www.squeaksource.com/DejaVu > Thanks for the tip. Can the freetype plugin be removed from the VM then? And then the freetype package from the image aswell ? I think pharo already use strike font for a few sizes, right? Hilaire

July 12, 2010

Re: [Pharo-project] Sequential Dictionary

by HernÃ¡n Morales Durand

Hi Joel, You may try the attached OrderedDictionary, I've been using it for some time. Cheers, HernÃ¡n 2010/7/12 Joel Turnbull <joelbywan(a)gmail.com>: > > Spent some time but was not quite able to get OrderedDictionary working. > However I see the idea is for the Dictionary to hold an OrderedCollection > that is synchronized with the Dictionary's array. > > I think that's enough for me to go on to implement my own for the limited > dictionary protocol I need to support. > > I looked in the Seaside packages for subclasses of Dictionary, or classes > named like Dictionary, but I didn't find anything. > > I got a little lost looking at BTree, I should probably take the time to > look at thatÂ someday. > > Thanks guys. > > > > On Sun, Jul 11, 2010 at 11:45 AM, Levente Uzonyi <leves(a)elte.hu> wrote: >> >> On Sun, 11 Jul 2010, Joel Turnbull wrote: >> >>> What is the group's recommendation for creating a sequential Dictionary? >>> i.e. A Dictionary who's associations are ordered. >>> >>> Is there any precedent for this? Or does it sound like I'm barking up the >>> wrong tree? >>> >>> In my model, I've subclassed Dictionary into QuantityDictionary to store >>> line items, where the key is the item and the value is the quantity of >>> the >>> item. It validates that the value is always a numeric, removes the >>> association when the value goes below zero, and other stuff specific to >>> my >>> application. >>> >>> Now I'm finding it makes sense to be able to order these associations. >>> Imagine a recipe ingredient list, where you add and edit quantities of >>> ingredients, and you want to put the ingredients that you use earliest in >>> the recipe at the top of the ingredient list. >>> >>> Before I put any more work into it, I just wanted to make sure that a >>> sequential dictionary makes sense, and get your ideas on how to generally >>> go >>> about implementing that? >> >> A "sequential dictionary" can mean a lot of different things. There are >> some implementations with different semantics available. See these for >> example: >> http://squeaksource.com/BTree.html >> http://forum.world.st/OrderedDictionary-td277320.html >> >> If you just want to iterate over your dictionary once in the sorted order, >> then the best thing to do is to collect your data into an array, sort the >> array, then iterate over that sorted array. >> >> >> Levente >> >>> >>> Thanks. >>> >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

July 12, 2010

Re: [Pharo-project] Sequential Dictionary

by Joel Turnbull

Spent some time but was not quite able to get OrderedDictionary working. However I see the idea is for the Dictionary to hold an OrderedCollection that is synchronized with the Dictionary's array. I think that's enough for me to go on to implement my own for the limited dictionary protocol I need to support. I looked in the Seaside packages for subclasses of Dictionary, or classes named like Dictionary, but I didn't find anything. I got a little lost looking at BTree, I should probably take the time to look at that someday. Thanks guys. On Sun, Jul 11, 2010 at 11:45 AM, Levente Uzonyi <leves(a)elte.hu> wrote: > On Sun, 11 Jul 2010, Joel Turnbull wrote: > > What is the group's recommendation for creating a sequential Dictionary? >> i.e. A Dictionary who's associations are ordered. >> >> Is there any precedent for this? Or does it sound like I'm barking up the >> wrong tree? >> >> In my model, I've subclassed Dictionary into QuantityDictionary to store >> line items, where the key is the item and the value is the quantity of the >> item. It validates that the value is always a numeric, removes the >> association when the value goes below zero, and other stuff specific to my >> application. >> >> Now I'm finding it makes sense to be able to order these associations. >> Imagine a recipe ingredient list, where you add and edit quantities of >> ingredients, and you want to put the ingredients that you use earliest in >> the recipe at the top of the ingredient list. >> >> Before I put any more work into it, I just wanted to make sure that a >> sequential dictionary makes sense, and get your ideas on how to generally >> go >> about implementing that? >> > > A "sequential dictionary" can mean a lot of different things. There are > some implementations with different semantics available. See these for > example: > http://squeaksource.com/BTree.html > http://forum.world.st/OrderedDictionary-td277320.html > > If you just want to iterate over your dictionary once in the sorted order, > then the best thing to do is to collect your data into an array, sort the > array, then iterate over that sorted array. > > > Levente > > > >> Thanks. >> >> > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

July 12, 2010

Re: [Pharo-project] Optimize Pharo for slow horse

by Levente Uzonyi

On Mon, 12 Jul 2010, Hilaire Fernandes wrote: > Hello, > > I am testing Pharo on XO OLPC computer. > > It is slow, yes, the machine are slow. But I am looking at place to make it > more usable: > > - larger font size (at least 12pt) > - screen depth to 16 bpp > - no background, does it help? > - browser, can we improve something? > - polymorph theme, I have this unfinished sugar theme I would like to > optimize for faster rendering > > Which tweaking can be applied to the image for a better user experience? You can use MVC, it works well on much slower computers... oh wait... Sorry, I couldn't resist. :) Try getting rid of gradients, dropshadows, etc. Use a plain old strikefont without anti-aliasing. If you can build a custom vm, make sure that you optimize it for the platform and build all modules external, except for those which are loaded when the image starts. You can also try using the new StackVM. And you can also run the following version of the browser test to see where can you improve the performance: | savedMorphs | savedMorphs := World submorphs. World removeAllMorphs."heh, heh" [ [ 10 timesRepeat: [ Browser fullOnClass: Object selector: #yourself ]. World submorphs do: [ :m | m delete. self currentWorld doOneCycle] ] ensure: [ World addAllMorphs: savedMorphs ] ] timeProfile. Levente > > Thanks to share any thought, even random ones. > > > Hilaire > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

July 12, 2010

Re: [Pharo-project] CPU load on Pharo

by StÃ©phane Ducasse

thanks for reporting. I did not have such problems may be other do. On Jul 12, 2010, at 6:00 PM, Dario Trussardi wrote: > Hi, > > i work with MAC update to: > > Versione sistema: Mac OS X 10.6.4 (10F569) > Versione kernel: Darwin 10.4.0 > > My Pharo image is based on gemtools-1-0-beta-6-one-click-available/ download from: > >> >> http://gemstonesoup.wordpress.com/2010/05/28/gemtools-1-0-beta-6-one-click-… >> > > I update the Pharo image with: > > Seaside 30 Magritte2 and Pier2. > > After i port my code and do some work for seaside 3.0 integration. > > Now when i test the application ( WAKom startOn: 8080 ) > > the MAC report a CPU load of 5% + 3 %. > > After some work : ( web request to my application - other web request - Pharo source change - other Mac application ( word -excel ), > > but only if Pharo image is load, the CPU load go to: > > CPU User 35 % > > CPU system 40% . > > > For now i don' understand because this load. > > When i close the application ( Pharo - Safari - ....) the load of CPU don't change ( 35% + 40% ). > > For solve it i need to restart the Mac. > > Someone found this problem ? > > > Thanks, > > Dario > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

July 12, 2010

Re: [Pharo-project] Optimize Pharo for slow horse

by StÃ©phane Ducasse

thanks for trying. did you try cuis to see a difference? I know that juan optimize scrollbars and others. > Hello, > > I am testing Pharo on XO OLPC computer. > > It is slow, yes, the machine are slow. But I am looking at place to make it more usable: > > - larger font size (at least 12pt) > - screen depth to 16 bpp > - no background, does it help? > - browser, can we improve something? > - polymorph theme, I have this unfinished sugar theme I would like to optimize for faster rendering > > Which tweaking can be applied to the image for a better user experience? > > Thanks to share any thought, even random ones. > > > Hilaire > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

July 12, 2010

[Pharo-project] CPU load on Pharo

by Dario Trussardi

Hi, i work with MAC update to: Versione sistema: Mac OS X 10.6.4 (10F569) Versione kernel: Darwin 10.4.0 My Pharo image is based on gemtools-1-0-beta-6-one-click-available/ download from: > > http://gemstonesoup.wordpress.com/2010/05/28/gemtools-1-0-beta-6-one-click-… > I update the Pharo image with: Seaside 30 Magritte2 and Pier2. After i port my code and do some work for seaside 3.0 integration. Now when i test the application ( WAKom startOn: 8080 ) the MAC report a CPU load of 5% + 3 %. After some work : ( web request to my application - other web request - Pharo source change - other Mac application ( word -excel ), but only if Pharo image is load, the CPU load go to: CPU User 35 % CPU system 40% . For now i don' understand because this load. When i close the application ( Pharo - Safari - ....) the load of CPU don't change ( 35% + 40% ). For solve it i need to restart the Mac. Someone found this problem ? Thanks, Dario

July 12, 2010

[Pharo-project] need help with selection/highlight in text

by StÃ©phane Ducasse

Hi we would like to have display several time the same piece of code (here 'find') into a piece of text (here in method testCycle). In the following method we would like to have all the find occurrences selected. Does anybody have a pointer? Stef and Simon testCycle | a b c | MOGraphFixture cycleGraph: dom. dom run. dom nodes do: [:n| n model = $c ifTrue: [self assert: n isDominant. self deny: n isDominated] ifFalse: [ self deny: n isDominant. n model = $d ifTrue: [self deny: n isDominated] ifFalse: [self assert: n isDominated] ] ]. a := dom findNode: $a. b := dom findNode: $b. c := dom findNode: $c. self assert: (a find = c). self assert: (b find = c).

July 12, 2010

Re: [Pharo-project] Optimize Pharo for slow horse

by Alain Plantec

Le 12/07/2010 16:22, Hilaire Fernandes a Ã©crit : > Hello, > > I am testing Pharo on XO OLPC computer. > > It is slow, yes, the machine are slow. But I am looking at place to > make it more usable: > > - larger font size (at least 12pt) you can load the full DejaVu strikefont package from squeaksource (CUIS fonts). It includes dejaVu of size 6,7,8,9,10,11,12,14,17 and 22. http://www.squeaksource.com/DejaVu Alain > > Hilaire > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

July 12, 2010

Re: [Pharo-project] [Vm-dev] Tracing on Linux

by Schwab,Wilhelm K

Dave, Any thoughts on mixing fprint()/fflush() in the .so with #stdOut in the image? I found #helloWorld, but some tinkering suggests that it is very sensitive to using #lf vs. #cr and/or does not like #flush. Does any of that sound familiar? Bill -----Original Message----- From: pharo-project-bounces(a)lists.gforge.inria.fr [mailto:pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of David T. Lewis Sent: Monday, July 12, 2010 5:32 AM To: Squeak Virtual Machine Development Discussion Cc: Pharo-project(a)lists.gforge.inria.fr Subject: Re: [Pharo-project] [Vm-dev] Tracing on Linux On Sun, Jul 11, 2010 at 05:30:35PM -0400, Schwab,Wilhelm K wrote: > > I am trying to track down a segmentation fault in calling into the Gnu Scientific Library. These are things that I had working under Windows+Dolphin and am now trying to do with Pharo and Linux. Offsets to structure elements and sizes of structures are possible snags, but the calls that are failing should be reasonably independent of such things: I call the relevant allocation method and pass along the pointer, so even if my interpretation of the structs is bogus, I would still expect the functions to succeed. That is all the more true of new functions that I am adding for testing purposes. > > The GSL functionality is split into two libraries, and the .so modules appear to be hobbled on Linux due to circular dependencies between them. A wrapper .so that is linked to both libraries seems to allow me to call "all" of the functions (the few I have tried to access) and gives a home for code of my own. > > I went so far as to compile some GSL sample code, and it does not crash. I further linked it to my wrapper library and it still works calling the GSL functions through the wrapper (or at least I *think* that's happening). I plan to gradually sneak up on the crash by moving things into my library and then hopefully into Pharo via FFI. > > On Windows, I would use OutputDebugString() to write tracing messages to look at what is happening until I found the problem. How do you unix VM gurus tackle such debugging problems? > Bill, To write strings to output, use fprintf() followed by fflush(). Don't forget the fflush or you'll never figure anything out ;) To use a debugger, compile with CFLAGS=-g (enable debugging info, no compiler optimization), then run the VM under gdb or one of the gui front ends to gdb such as ddd. Put a breakpoint in your function, and you're good to go. Assuming you are using up to date sources from Subversion, run "platforms/unix/configure --help" for more build options. Dave _______________________________________________ Pharo-project mailing list Pharo-project(a)lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

July 12, 2010