Vm-dev January 2009

vm-dev@lists.squeakfoundation.org

15 participants
19 discussions

Profiling and delay accuracy
by Andreas Raab 06 Aug '11

06 Aug '11

Hi Folks - For a long time now I had this feeling that MessageTally reports pretty bogus results in many situations without being able to precisely track down why this would be the case. Today I was looking at primitiveResponse() and, much to my surprise, noticed that the checkForInterrupts() that used to be there for years is gone (see Squeak3.6 for example which still has it). The sole reason for this check was to get both high delay accuracy and good profiling behavior. Consider this example: fc := FormCanvas on: Display. MessageTally spyOn:[ 1 to: 100 do:[:i| fc fillColor: Color white. fc printString. ]. ]. Using 3.6 this will be measured correctly as: **Tree** 87.5% {243ms} FormCanvas>>fillColor: |87.5% {243ms} GrafPort>>fillRect:offset: | 87.5% {243ms} GrafPort>>copyBits 12.5% {35ms} FormCanvas(Object)>>printString 12.5% {35ms} FormCanvas(Object)>>printStringLimitedTo: whereas the 3.10 reports it as **Tree** 99.6% {670ms} FormCanvas(Object)>>printString 94.9% {639ms} primitives 4.6% {31ms} FormCanvas(Object)>>printStringLimitedTo: I think you can see the problem and just imagine what this does to any cumulative results. I also wonder what that change does to platforms that don't have high-resolution asynchronous timers. This used to be the one place where we would catch timer changes at high resolution and unless the platform forces high resolution timer interrupts asynchronously (by resetting the interrupt counter) we must be loosing a lot in terms of delay accuracy. (it just so happens that the Windows VM *does* do asynchronous timer interrupts so I never noticed this but I'm very curious about the difference on Linux which typically still has pretty bad timer granularity). Any opinions? My feeling is that the timer check should go back in for all of the above reasons. At the very least a quickCheckForInterrupt() is required but I actually think putting the full check back in is worth it. Cheers, - Andreas

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Joys of Squeak-dev image, VM Compiling on MacIntel and Spoon remote OtherBrowsing
by Ken G. Brown 16 Nov '10

16 Nov '10

MacPro OS X 10.4.9 Xcode 2.4.1 Squeak-dev-114-2, VMMaker 2.8b6.1, Squeak 3.8.15beta6U.app, and version 1657 of svn MacOS VM sources, and Spoon v2a12. Downloaded http://www.squeakvm.org/cgi-bin/viewcvs.cgi/ trunk version 1657 for MacOS Ran squeak-dev-beta-114-2.image on Squeak 3.8.15beta6U.app Loaded VMMaker 3.8b6.1 from dev image Universes. Generated vm sources by following instructions in <http://www.squeakvm.org/cgi-bin/viewcvs.cgi/trunk/platforms/Mac%20OS/vm/Doc…> Fought with Xcode wanting to use MacOSX10.3.9.sdk for ppc which was giving an error which was known and documented in the Readme. Finally figured out what Xcode wanted so built universal app just using 10.4.9 sdk. Couple issues: Exupery references remain in sqnamedPrims.h and sqPlatformSpecific.h from svn version 1657, I just commented them out. Notes said: Info-NPSqueak__Upgraded_.plist was to be found in the Developer directory. I could not find it so scammed a info.plist out of John's Squeak 3.8.15beta6U.app vm. Not sure what impact this has. And much, much diddling about figuring out various things... Finally got a build. It's a lot smaller (3.9MB) than John McIntosh's Squeak 3.8.15beta6U.app (8.1MB), and it looks like it is a PowerPC one but at least it runs. I'll look into the Xcode build process some more. Then: Replaced interp.c with Craig's interp.c for Spoon, rebuilt and got a VM with Spoon client stuff. Downloaded Spoon release 2a12. Moved a copy of Flow plugin from within Craig's naiad.app package into a plugins subdirectory where the new spoon client compatible MacIntel universal VM was run from. Followed Craig's Spoon instructions for loading niaid.st and niaid.pr into the 3.10 image (Squeak-dev-114-2) running on the new VM. Did the run spoon.app thing from Spoon.dmg (version 2a12), needs to be done twice if Safari is not running. Got Spoon processor running. Followed instructions again in the Spoon client and lo! Got OtherBrowser browsing the Spoon memory running on processor. Yay Craig! Who do i get to sign my certificate? :) Ken

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How to use Croquet VMMaker
by Matthew Fulmer 29 Apr '09

29 Apr '09

Hi. In anticipation of working on HydraVM, I am trying to test as close a configuration as possible to HydraVM without being hydra. That is, load the nearest ancestor VMMaker and C sources to hydra, and try to make a working VM. This should help ensure that there are no "normal" bugs once I switch to Hydra, only hydra bugs. So, I did that: Here is my setup: - Fedora core 7 on x86 processor - Release 3.9 image/VM from squeak.org - Load FFI from SqueakMap - Load VMMaker-ar.70 from http://jabberwocky.croquetproject.org:8889/Homebase/ - Checkout http://squeakvm.org/svn/squeak/trunk revision 1796 (The nearest ancestor of HydraVM) I pointed VMMaker at the platforms directory in the checkout, and told it to build source in platforms/unix/src. I selected all plugins to be external, but moved FilePlugin and SocketPlugin to be internal. Then I did mkdir unixbuild cd unixbuild ../platforms/unix/config/configure make make fails linking gnu-interp.o: /bin/sh /home/matthewf/squeak/vm/hydravm-trunk-base/unixbuild/libtool --mode=link gcc -g -O2 -fomit-frame-pointer -DLSB_FIRST=1 -export-dynamic -R/usr/local/lib -o squeak vm/vm.a FilePlugin/FilePlugin.a SocketPlugin/SocketPlugin.a disabledPlugins.o version.o -lutil -ldl -lm -lnsl vm/vm.a gcc -g -O2 -fomit-frame-pointer -DLSB_FIRST=1 -o squeak disabledPlugins.o version.o -Wl,--export-dynamic vm/vm.a FilePlugin/FilePlugin.a SocketPlugin/SocketPlugin.a -lutil -ldl -lm -lnsl vm/vm.a -Wl,--rpath -Wl,/usr/local/lib vm/vm.a(gnu-interp.o): In function `primitiveGetWindowLabel': /home/matthewf/squeak/vm/hydravm-trunk-base/unixbuild/vm/gnu-interp.c:15141: undefined reference to `ioGetWindowLabel' vm/vm.a(gnu-interp.o): In function `primitiveSetWindowLabel': /home/matthewf/squeak/vm/hydravm-trunk-base/unixbuild/vm/gnu-interp.c:18770: undefined reference to `ioSetWindowLabelOfSize' collect2: ld returned 1 exit status Building this VM worked when using the latest VMMaker from SqueakMap (VMMaker-tpr.58), everything else the same. Is there something else I need to do in order to build using the Croquet VMMaker? I want to use it specifically, since the Hydra VMMaker is derived from it. The dev notes on Hydra are at http://squeakvm.org/~sig/hydravm/devnotes.html -- Matthew Fulmer -- http://mtfulmer.wordpress.com/ Help improve Squeak Documentation: http://wiki.squeak.org/squeak/808

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newDelta >0 failed in sqUnixMemory
by Damien Cassou 04 Feb '09

04 Feb '09

Hi, with a recent stock pharo image and a new VM compiled from svn on Linux, I always get squeak: /tmp/squeak-svn/platforms/unix/vm/sqUnixMemory.c:172: uxGrowMemoryBy: Assertion `newDelta >= 0' failed. Aborted This does not happen on Squeak 3.9 nor 3.10. This did not happen yesterday when I was on Ubuntu Hardy. Now, I'm on Intrepid, GCC 4.3.2 and it crashes after 3 seconds of work on any Pharo image. You may want to know that to compile the vm, I was obliged to change sqUnixFBDevMousePS2.c to make use of the 'write(2)' return value because my compiler didn't want to compile if write(2) return value was unused. -- Damien Cassou http://damiencassou.seasidehosting.st

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[Fix] Avoid recent gcc error messages about unused write(2) return value
by Damien Cassou 03 Feb '09

03 Feb '09

See attachment. [Fix] Avoid recent gcc error messages about unused write(2) return value -- Damien Cassou http://damiencassou.seasidehosting.st

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Re: [Pharo-project] Plugin organization
by David T. Lewis 02 Feb '09

02 Feb '09

On Wed, Jan 21, 2009 at 02:05:46PM +0100, Michael Rueger wrote: m Hi all, > > What I would like to propose is that we organize all plugins in Pharo in > to a Plugin category. > So we would then have "Plugin-Curl", "Plugin-Locale" etc. Or > alternatively "Plugin-Network-Curl", "Plugin-System-Locale" etc. > > That would also allow to simply load all plugins into a VMMaker image by > using a package "Plugin". > > What do you guys think? +1 on a common naming convention for this. I would also like to suggest something to distinguish VM plugins from other kinds of "plugins". The reason is that the word "Plugin" is used to describe the web browser plugin, and maybe other things in the future. If we say "VmPlugin" or "VMConstruction-Plugin-* then the difference is clear. I checked an older Squeak image to remind myself of the original naming convention, which was: VMConstruction-Interpreter VMConstruction-Translation VMConstruction-Plugins VMConstruction-B3DSimulation VMConstruction-TestPlugins VMConstruction-Applescript Some older plugins that are maintained outside of the VMMaker package already use this package naming convention, hence: VMConstruction-Plugins-OSProcessPlugin VMConstruction-Plugins-XDisplayControlPlugin VMConstruction-Plugins-AioPlugin This still looks perfectly good to me, so how about just using "VMConstruction-Plugins-*" rather than "Plugins-*"? Michael Rueger proposed Plugin-* and Tests-*, so guess that this would be: VMConstruction-Plugins VMConstruction-Tests or is it "Tests-VMConstruction-Plugins" ?? I am not sure. (cc to vm-dev list) Dave

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Re: [Pharo-project] newDelta >0 failed in sqUnixMemory
by John M McIntosh 30 Jan '09

30 Jan '09

Yes, I can't recall it was what 50% of the performance of a 3.x compile out of the box, and after *much* tweaking of compiler flags it was mmm just 20% slower.. Well certainly the performance impact was measured in 10 of percent. On 30-Jan-09, at 4:33 AM, Michael Rueger wrote: > > John McIntosh and I actually spent some time a few ago compiling VMs > on > Windows and MacOS with the newest GCCs and ran into a bunch of > problems, > especially concerning performance. I had to put the work on the back > burner for now, but switching to newer compilers will take a bit of > extra work at some point. > > Michael -- = = = ======================================================================== John M. McIntosh <johnmci(a)smalltalkconsulting.com> Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com = = = ========================================================================

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UUID new crashes 64bit vm
by Philippe Marschall 29 Jan '09

29 Jan '09

Hi I built a 64bit VM (for 32bit images) from SVN trunk and VMMaker-dtl.102. UUID new causes the VM to segmentation fault. The reason I did this is because I need to have a Unix VM with the cUrl plugin and my system is 64 bit. I need to have the cUrl plugin because I need an https client. If I'm doing it wrong what would be the right way of doing it? Or is there even a recent 64bit Unix VM available that was a cUrl plugin? Cheers Philippe

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Obama -- The Judas Goat
by Lawrence Auster 25 Jan '09

25 Jan '09

Obama -- The Judas Goat 1/25/2009 By David Duke Judas Goat\ A goat that leads other goats or sheep to slaughter. Also, one who entices into danger and betrays others. The name is an allusion to Judas Iscariot, who betrayed Jesus for 30 pieces of slaughter. (From Merriam Webster�s Dictionary) Barack Hussein Obama is a Judas Goat. Extremist Jews guided Barack Hussein Obama�s career from day one, even all the way back to Harvard Law School. Radical Zionist hitman, David Axelrod previously orchestrated the Jewish-financed and organized defeat of perceived anti-Zionist Sen. Charles Percy. He is the man who ran Obama�s campaign for President and who is his chief handler. Obama�s campaign was overwhelmingly financed by the most powerful Zionist bankers in the world. His campaign�s largest contribution source was the Zionist international banking firm of Goldman Sachs. (FEC campaign records). In both Obama�s Senate and Presidential campaign he prostrated himself before AIPAC (American Israel Public Affairs Committee) promising even more money and blood for Israel�s terrorism than even the supine John McCain, and even more money and blood than the previous Shabbez Goy in the White House, George Bush. Before the Israeli terrorism and mass murder in Gaza, he went to Israel and said that he supported Israel�s planned murderous terrorism against the men, women and children of Gaza. His first act as President-elect was to appoint a rabid Zionist, Israeli dual citizen who served in the Israeli Army as his Chief of Staff, Rahm Emmanuel. As thousands of women and children in Gaza were killed or maimed, Obama remained silent. Within a few days as President Obama supported indiscriminate American missile strikes in villages of our ally Pakistan, a clear continuation of Bush�s policies. He completely supports the theft of trillions of American taxpayer dollars to the Zionist international bankers. Eighty percent of American Jews voted for Obama, and all the main leaders of the Jewish Supremacist state of Israel have proclaimed Obama as the perfect man for U.S. President. What better for the Zionists to have their own servant perceived as a clean break from the Jewish extremist-controlled Bush administration? What better than for the Zionists than to have their Shabbez Goy be treated by the world�s press and even by much of the anti-Zionist community as a man of �real change?� What better for the Zionists than for the world to think that Obama will be a change from the Zionist-controlled policies when he willing to do anything that Israel demands? What better for the Zionist murderers to have their craven puppet be looked at by the whole world as a man of honor and integrity and fairness. In the slaughterhouse, the Judas Goat is often painted with bright colors, adorned with strong, sweet scents to lure the sheep to their pens and to their death. Obama, the Judas Goat of our time, is looked upon by millions of Zionist-propagandized sheep as the man who will lead them to salvation. Instead, he leads America, Palestine and the world to the bloody altar of Jewish Supremacism. Any supposed anti-Zionist who praises Barack Obama is actually aiding this Judas Goat to lead us all to slaughter. Every person who truly opposes Jewish extremism must speak out and expose the Judas Goat named Barack Obama! -- Dr. David Duke Former Member of the House of Representatives State of Louisiana United States of America It is up to you the people of the United States who can still think freely, and up to all of the people of the world who are able to see through the deceptions of the Zionist-influenced Global media -- to get this simple, powerful message to everyone on earth. Email this message to your friends, post it on forums and websites and put links to it on every website, facebook or other media in the world. Go and seek out media and Internet sites not controlled by Zionist power. Make youtube videos of this message, (use the short audio and find good illustrative pictures) and post it untill your fingers are worn and tired, print it and mail it to newspapers or any media outlet that has still not fallen under the propaganda of the Zionists. Let the world know the truth. Person by person, in the USA, Canada, UK, France, Germany, Italy, japan, Russia, China, Africa, Palestine, South America and across the whole world this Judas Goat must be exposed for what he is, so that when begins to do his evil for Israel, the whole world will know exactly what is going on and resist! Source : http://www.davidduke.com/general/obama-the-judas-goat_7317.html ------------------------ Why is the President of Israel, the terrorist who just oversaw the Zionist mass murder and maiming of thousands of Palestinians so happy that Obama is President of the USA? by David Duke Read the excerpt from the Israeli News about how President Perez and Israel think that Obama�s becoming U.S. President is great day for Israel. "Israel�s President Shimon Peres ecstatic over the election of Obama" Ronen Medzini Israel News Jan. 21 �Today is a great day not only for the United States of America, but for the entire world,� President Shimon Peres wrote in a letter addressed to Barack Obama on the day of his inauguration as president of the United States. �Obama was elected by the United States, but as a matter of fact, he was chosen by the whole of humankind,� Why is Peres so ecstatic? Why shouldn�t he be, he knows that Obama is completely in the grip of the extremist Jewish Zionists in America, and he knows that the greater Obama�s popularity and idol worship, the more Obama can do for the International Zionist Cause. Any thinking and caring human being who realizes that the Zionist-controlled American foreign policy has been a disaster for the robbed and murdered people of Palestine, Lebanon, Iraq and a catastrophe for the 50,000 American wounded in Iraq and Afghanistan, as well as an economic catastrophe for the hardworking Americans who pay trillions to finance these wars for Israel -- must wake up the fact that supporting Obama and increasing his popularity will only aid Zionist terrorism, war, and their murder and oppression of the Palestinians. It will also hasten the economic suffering of billions of people around the world as his popularity enables him to more easily aid the Zionist International Bankers steal the wealth of the United States, Europe and the world. Obama is totally in the bloodstained and green ink- stained hands of the Zionists. The hard truth is that the more good will and support Obama has also gives more power to support the Zionist agenda! Mark my words. The Obama Presidency will be disaster for America and for the world. Obama was put into office by the Zionists. His top two cohorts for years have been the radical Jews David Axelrod and Rahm Emmanuel. Both have long records of radical Zionism and have been attack dogs against anyone perceived as having the slightest opposition to Israel. One such victim was Sen. Charles Percy, who both men worked to defeat and destroy because he dared to only be 99 percent rather than 100 percent pro-Israel. Rahm Emmanuel, a dual citizen of Israel who went to fight for Israel, he has a long pedigree of Jewish extremism. His father served in the Irgun Terrorist Gang and he himself is named after an Irgun terrorist. Zionist leaders in Chicago actually call Obama �the first Jewish President� and boast that Jews were key players in Obama�s every step up the ladder to President. from the very earliest days, extremist Jews were the largest contributors to his campaign. In the beginning of his Presidential bid, three Hollywood Jews that constantly make movies about Jewish suffering, but never about the Zionist terrorism and theft against the Palestinian people, Steven Spielberg, David Geffen, and Jeffrey Katzenberg raised 1.2 million for Obama in a single Hollywood party. By the time Obama�s campaign was in full swing, he had huge support from the criminal Zionist International Banking firms such as Goldman Sachs and Lehman brothers. Goldman Sachs was Obama�s biggest single contributor, and his vast war chest came not from American manufacturing firms like GM or even American oil companies, (not one was in his top twenty) it was overwhelmingly dominated by Zionist international bankers, the same ones whose thievery and fraud are giving the world this economic depression. For those looking for meaningful social and political change, do you really think it will come from this man who has already been bought heart, head and soul by the most powerful czars of the international financial establishment and the biggest globalists in the world? I know that many are desperate for change, so desperate that you want to believe anything. But in the face of these facts can�t you see that Obama will be even more dangerous to freedom and justice than even George Bush and his band of Neocons were. What better way to wipe out George Bush�s hated legacy and make the world believe that America has really changed than with the election of Obama. But, all the real Zionist power, Zionist media power, and Zionist financial power in America is still in place, even stronger than ever. Many Americans and others around the world who want to do good are now telling us how wonderful Obama will be as president. What a great change it will be from the old policies. This is because of the Zionist-Controlled media hype, promoting Obama. The fact is that these poor sods are ignorantly helping the radical Zionist agenda in Israel and around the world. Every day that you don�t help expose Obama for the Zionist servant that he actually is, his popularity will be a greater danger to peace and freedom. If the Zionist terrorist Shimon Perez is happy about the coronation of Obama, then why in the hell should you be? �David Duke Source : http://www.davidduke.com/general/7303_7303.html ------------------------------------- You or someone using your email adress is currently subscribed to the Lawrence Auster Newletter. If you wish to unsubscribe from our mailing list, please let us know by calling to 1 212 865 1284 Thanks, Lawrence Auster, 238 W 101 St Apt. 3B New York, NY 10025 Contact: lawrence.auster(a)att.net -------------------------------------

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port of squeak-vm to ppc
by pascal.vollmer＠nexgo.de 25 Jan '09

25 Jan '09

Hi, I currently try to get Squeak ported to a PowerPC-board with pre-installed Linux (MPC5200B tiny by Phytec). I have gathered some of the elements how to do that but I get stuck in composing them in the right way and this is where I'd like to ask for advice. Here is my environment: 1) build-machine is a i686/Linux (Suse 10.1) with binutils for the PowerPC host 2) a directory with the Squeak-VM sources (Squeak-3.10-4.src.tar.gz) Here are my actions: 1) I invoke .configure as it is explained in http://squeakvm.org/unix/devel.html: cd buildPPCLx ../platforms/unix/config/configure --prefix=$HOME/smalltalk/squeak/Squeak-VM/Squeak-3.10-4/PPCLx --build=i686-pc-linux-gnu --host=powerpc-603e-linux-gnu 2) I get back an error message saying ''checking "size of int"... configure: error: cannot run test program while cross compiling '' Here is my question: 1) some advices on the net say, I should run autoconf with a version greater than 2.53b to get rid of that problem, 2) others say I should set manually those values in configure.ac and rerun autoconf. They are host properties after all and cannot be tested on the build system, 3) I found one explicit explanation referring to the gumstix (http://www.davehylands.com/linux/gumstix/squeak/). But I do not want to follow these advices blindly as I do not fully understand their impact. Any hint how to continue ? Kind regards Pascal Pascal Vollmer Email: pascal.vollmer(a)ieee.org Jetzt komfortabel bei Arcor-Digital TV einsteigen: Mehr Happy Ends, mehr Herzschmerz, mehr Fernsehen! Erleben Sie 50 digitale TV Programme und optional 60 Pay TV Sender, einen elektronischen Programmführer mit Movie Star Bewertungen von TV Movie. Außerdem, aktuelle Filmhits und spannende Dokus in der Arcor-Videothek. Infos unter www.arcor.de/tv

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Vm-dev January 2009