Vm-dev March 2015

vm-dev@lists.squeakfoundation.org

37 participants
175 discussions

ffi-test-main.c fails on FreeBSD
by Gary Dunn 12 Aug '16

12 Aug '16

In conjunction with getting Open Cobalt running on FreeBSD I have been looking into the problems with SqueakFFIPrims on FreeBSD and have reached a point that is beyond my understanding. I am not sure if the fix should come from the VM side or the FreeBSD port maintainer. I needed to get source code back into the ports tree so I did a make in /usr/ports/lang/squeak. I already had the 3.9 tarball, so that just repopulated the source and did the initial build. In the "files" folder I found patch files typical for a FreeBSD port. These patch source files from a generic tarball to work with FreeBSD. The one of interest was patch-platforms__unix__plugins__SqueakFFIPrims__ffi-config which contains ----x-----x----- --- platforms/unix/plugins/SqueakFFIPrims/ffi-config.org Wed Apr 26 20:27:53 2006 +++ platforms/unix/plugins/SqueakFFIPrims/ffi-config Wed Apr 26 20:29:00 2006 @@ -39,6 +39,7 @@ case ${abi} in linux) abi=sysv;; + freebsd*) abi=sysv;; darwin*) abi=darwin;; *) abi=libffi; lib="-lffi";; esac -----x-----x----- I then had the folder work/Squeak-3.9-7/platforms/unix/plugins/SqueakFFIPrims In it is a file 00README which explains how to test FFI. It says to run ffi-test-config but I have no such file. It says to type "make" to build a test suite but the build failed. It says to try with make CPU=any ABI=libffi LIB=-lffi which also failed. I traced the problem to the gcc search paths for includes and libraries -- turns out FreeBSD only searches /usr/include and /usr/lib when the required files are in /usr/local/include and /usr/local/lib. After some fiddling I finally had a "main" to test. It failed: ffi-test-main.c failed at line 361. Here is a bit from that file, ending with line 361: ffiInitialize(); for (ul= 0; ul < 15; ++ul) ffiPushSingleFloat(fa[ul]); GO(FFITypeSingleFloat, many); f= ffiReturnFloatValue(); ffiCleanup(); CHECK(f - ff < FLT_EPSILON); I worked out the CHECK macro but could not find what FLT_EPSILON is. At that point I decided to stop and come to you for help. Where do I go from here? -- Gary Dunn, Honolulu osp(a)aloha.com http://openslate.net/ http://e9erust.blogspot.com/ Sent from Slate001

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Do we have the new primitive?? [WAS] Re: [Pharo-project] IdentitySet but using #hash rather than #identityHash ?
by Mariano Martinez Peck 16 Dec '15

16 Dec '15

> All I can say is that I am impressed by the numbers it is really much >> faster. >> I still don't understand why I send this email with a subject say >> IdentitySet because what I really need is a fast/large IdentityDictionary >> :( Anyway, there's a place where we can use this LargeIdentitySet in Fuel >> I think). >> >> So Levente, you say this is not possible to adapt this for dictionary? >> can >> we contact Eliot to provide such a primitive? >> > > As promised, I uploaded my LargeIdentityDictionary implementation to > http://leves.web.elte.hu/**squeak/**LargeIdentityDictionary.st<http://leves.web.elte.hu/squeak/LargeIdentityDictionary.st>. > The numbers will be a bit worse compared to LargeIdentitySet, because of > the lack of the primitive, but it's still 2-3x faster than other solutions > (IdentityDictionary, PluggableIdentityDictionary, subclassing, etc). I'm > about to propose this primitive with other improvements on the vm-dev list. > > Hi Eliot/Levente. What is the status of this? Do we have already the new primitive? If true, how can we adapt LargeIdentitySet to use such new primitive? Thanks! > > Levente > > >> thanks >> >> On Fri, Dec 16, 2011 at 3:28 PM, Levente Uzonyi <leves(a)elte.hu> wrote: >> >> On Fri, 16 Dec 2011, Henrik Sperre Johansen wrote: >>> >>> On 16.12.2011 03:26, Levente Uzonyi wrote: >>> >>>> >>>> >>>>> How about my numbers? :) >>>>> >>>>> "Preallocate objects, so we won't count gc time." >>>>> n := 1000000. >>>>> objects := Array new: n streamContents: [ :stream | >>>>> n timesRepeat: [ stream nextPut: Object new ] ]. >>>>> >>>>> set := IdentitySet new: n. >>>>> Smalltalk garbageCollect. >>>>> [1 to: n do: [ :i | set add: (objects at: i) ] ] timeToRun. "4949" >>>>> >>>>> set := LargeIdentitySet new. >>>>> Smalltalk garbageCollect. >>>>> [1 to: n do: [ :i | set add: (objects at: i) ] ] timeToRun. "331" >>>>> >>>>> set := (PluggableSet new: n) >>>>> hashBlock: [ :object | object identityHash * 4096 + object class >>>>> identityHash * 64 ]; "Change this to #basicIdentityHash in Pharo" >>>>> equalBlock: [ :a :b | a == b ]; >>>>> yourself. >>>>> Smalltalk garbageCollect. >>>>> [1 to: n do: [ :i | set add: (objects at: i) ] ] timeToRun. "5511" >>>>> >>>>> >>>>> I also have a LargeIdentityDictionary, which is relatively fast, but >>>>> not >>>>> as fast as LargeIdentitySet, because (for some unknown reason) we don't >>>>> have a primitive that could support it. If we had a primitive like >>>>> primitive 132 which would return the index of the element if found or >>>>> 0 if >>>>> not, then we could have a really fast LargeIdentityDictionary. >>>>> >>>>> >>>>> Levente >>>>> >>>>> Hehe yes, if writing a version fully exploiting the limited range, >>>> that's >>>> probably the approach I would go for as well. >>>> (IAssuming it's the version at http://leves.web.elte.hu/** >>>> squeak/LargeIdentitySet.st<htt**p://leves.web.elte.hu/squeak/** >>>> LargeIdentitySet.st<http://leves.web.elte.hu/squeak/LargeIdentitySet.st> >>>> > >>>> ) >>>> >>>> Mariano commented in the version at http://www.squeaksource.com/** >>>> FuelExperiments <http://www.squeaksource.com/**FuelExperiments<http://www.squeaksource.com/FuelExperiments>> >>>> that it's >>>> >>>> slow for them, which I guess is due to not adopting #identityHash calls >>>> to >>>> #basicIdentityHash calls for Pharo: >>>> ((0 to: 4095) collect: [:each | each << 22 \\ 4096 ]) asSet size -> 1 >>>> So it basically uses 1 bucket instead of 4096... Whoops. :) >>>> >>>> Uploaded a new version to the MC repository which is adapted for Pharo, >>>> on the same machine my numbers were taken from, it does the same test >>>> as I >>>> used above in 871 ms. (181 with preallocation). >>>> >>>> >>> Cool. One more thing: in Squeak the method using primitive 132 directly >>> was renamed to #instVarsInclude:, so now #pointsTo: works as expected. If >>> this was also added to Pharo, then the #pointsTo: sends should be changed >>> to #instVarsInclude:, otherwise Array can be reported as included even if >>> it wasn't added. >>> I'll upload my LargeIdentityDictionary implementation to the same place >>> this evening, since it's still 2-3 factor faster than other solutionts >>> and >>> there seem to be demand for it. >>> >>> >>> Levente >>> >>> >>> Cheers, >>>> Henry >>>> >>>> >>>> >>>> >>> >> >> -- >> Mariano >> http://marianopeck.wordpress.**com <http://marianopeck.wordpress.com> >> >> > -- Mariano http://marianopeck.wordpress.com

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Maintainer of FFI-Package
by Nicolai Hess 12 Sep '15

12 Sep '15

Who is the maintainer of the FFI-Package for Squeak and/or Pharo ? I especially interested in the FFI-Unix examples and the state on working FFI on linux for current squeak release (AFAIK it does not work with "squeak all in one" 4.5) regards Nicolai

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Re: [Pharo-dev] Reducing the activity of the image
by phil＠highoctane.be 02 Aug '15

02 Aug '15

Can't the box be setup 5o do some WoL thing and go back to sleep when idling for a while? This CPU usage is really annoying indeed. Phil Le 9 févr. 2015 21:11, "Norbert Hartl" <norbert(a)hartl.name> a écrit : > I have an installation where a pharo powered hardware is used in a closed > case. Over time that collects quite some heat. One reason for this is that > the pharo vm is taking approx. 6% CPU all the time. The only thing that > happens is network/sockets. I suspended the ui thread in the image but on > this platform it doesn't help. > Are there any tweaks to lower the polling and the activity of the image/vm > even more? > > thanks, > > Norbert > > >

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Long path name support added for win32
by Marcel Taeumel 15 May '15

15 May '15

sqWin32FilePrims.c <http://forum.world.st/file/n4796045/sqWin32FilePrims.c> Hi! :) I added support for long path names according to the hint given here: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%… Just prepending "\\?\" in that case. Further limitations may have to be investigated. ;) Eliot, could you add this to the VM trunk? Best, Marcel -- View this message in context: http://forum.world.st/Long-path-name-support-added-for-win32-tp4796045.html Sent from the Squeak VM mailing list archive at Nabble.com.

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updating and compiling the BerkeleyDB plugin
by Paul DeBruicker 15 Apr '15

15 Apr '15

Hi - I've posted Steven Pair's BerkeleyDB plugin .sar file to dropbox here: https://dl.dropboxusercontent.com/u/4460862/BerkeleyDB.sar I'd like to get it to compile (on linux...), and also to modify it to work with the LMDB (http://symas.com/mdb/). According to the LMDB docs it should be pretty straightforward to port something from BerkeleyDB. From examining the .sar it looks like the plugin hasn't been edited/compiled since December 2002. Is there a guide for bringing old plugins up to date? IF not what should I expect to have to change to get it working? Thanks Paul

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Cog 15.00.3205 / SqueakSSL
by Tobias Pape 10 Apr '15

10 Apr '15

Hi all Eliot's latest CogVM 15.00.3205 provides a SqueakSSL that seems to be linked against libcrypto.so.10 libssl.so.10 however, I am unable to find either for current or just outdated Debian/Ubuntu. Probably I didn't look hard enough. Anybody knows where to get them?

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VM endianness
by Clément Bera 03 Apr '15

03 Apr '15

Hello, Is there a primitive or a parameter that I can call from the image to know the endianness of the processor / VM ? Thanks, Clement

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Re: [Pharo-dev] Status of Pharo VM for FreeBSD
by Andreas Wacknitz 03 Apr '15

03 Apr '15

Hi Clement, > Am 11.03.2015 um 09:23 schrieb Clément Bera <bera.clement(a)gmail.com>: > > Hello, > > About the FreeBSD VM, Holger Freyther worked on it so he's the best person to answer. I think some people used it and it was at least partially working. That’s my impression. The VMMaker contains some FreeBSD classes but I have the impression that they are not complete (and probably outdated). > > About your NativeBoost bug on openSolaris, need more information: > > - Can you confirm that you use an intel processor on your openSolaris machine ? I assume that yes but I ask because solaris were typically running on other processors. NativeBoost, as of today, works only with intel processor. > Yes, my Sun Ultra 24 is an Intel based Workstation (Q9300). > - Do you build the Cog VM or Stack VM ? I mean PharoVMBuild or PharoSVMBuild ? I think the PharoSVMBuild does not include NativeBoost by default, that may be your problem. There's a fix somewhere... > PharoVM from "branch 'master' of https://github.com/pharo-project/pharo-vm <https://github.com/pharo-project/pharo-vm>" (thus Cog VM). > - What are you doing with NativeBoost ? Is it FFI only or are you generating and executing hand-written machine code ? If it's FFI only, there might be alternative available working more or less out of the box. The Pharo image is using NativeBoost. If I open a File Browser on a network share (NFS) it tries to resolve environment variables (eg. HOME) by means of NativeBoost. Regards Andreas > Best, > > Clement > > > > > 2015-03-10 20:26 GMT+01:00 Andreas Wacknitz <a.wacknitz(a)gmx.de <mailto:a.wacknitz@gmx.de>>: > Hi all, > > > I have a question regarding the status of the PharoVM for UNIX operating systems, especially FreeBSD. > As far as I have seen in the actual sources there is some support for FreeBSD available but for me it’s not clear whether it’s only partial or complete. > For me it looks more partial (eg. there are no build instructions for FreeBSD and the default offers are only Mac, Linux and Windows), > I haven’t tried to build it yet but I am thinking about to do that and want to get an idea about the efforts. > > I have successfully build a PharoVM for openindiana (an OpenSolaris derivate). It runs both Pharo and Squeak images (at least partially, see below). > I bootstrapped this on my Mac and used what was already available low level. > Alas it has two problems until now: > 1. Sound is not working properly (just a single click when doing some sound output and then silence). > 2. NativeBoost is not working (atm it is based on the Linux version of NativeBoost). > > As my time is very limited (doing everything in my spare time) I would like to get NativeBoost working on openindiana first, and then trying to build an > actual PharoVM for FreeBSD. Therefore the question regarding the status of PharoVM for FreeBSD. > Of course any hints where to start with the NativeBoost problem would be highly appreciated :) > > Regards > Andreas >

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NoDbgRegParms test case results
by gettimothy 02 Apr '15

02 Apr '15

Hi all. I implemented a simple test case to test my theory that my platform does not support the regparms(0) function attribute and my theory is bunk. bleah. I modified this autotools tutorial's source files at http://www.gnu.org/software/automake/manual/html_node/Creating-amhello.html to mimic the __attribute__((regparms(0))) behavior in cog. I could not recreate the error under any compination of PRODUCTION and #if #else conditions. I am at a loss at the moment (and sick with a cold) so I will have to revisit this later. CMakeVMMakerSqueak dev is blocked by this issue. I added a test.h file to the src directory that looks like this: bash-4.2$ cat test.h #undef NoDbgRegParms #define PRODUCTION 1 #if !PRODUCTION && defined(__GNUC__) && !defined(NoDbgRegParms) # define NoDbgRegParms __attribute__ ((regparm(0))) #else # define NoDbgRegParms __attribute__ ((deprecated)) #endif int plus (int a, int b) NoDbgRegParms; and modified the main.c . bash-4.2$ cat src/main.c #include <config.h> #include <stdio.h> #include "test.h" int main(void){ int p; puts("Hello World!"); puts ("This is " PACKAGE_STRING "."); p=plus(3,3); printf("%d\n",p); return 0; } int plus (int a, int b) { return a + b; }

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Vm-dev March 2015