Cog VM on Raspberry Pi ?
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Cog VM on Raspberry Pi ?
 
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Re: Cog VM on Raspberry Pi ?
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Re: Cog VM on Raspberry Pi ?
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Re: Cog VM on Raspberry Pi ?
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In reply to this post by Sven Van Caekenberghe-2
> On 17 Oct 2016, at 8:43 , Sven Van Caekenberghe <[hidden email]> wrote: > > Hi, > > Does a (faster) Cog VM for the Raspberry Pi actually exist ? > > I tried comparing the latest OpenSmalltalk VM with some older ones, only to find that they are all equally fast (slow actually): > > pi@raspberrypi ~/Pharo $ ./pharo -nodisplay Pharo.image printVersion > [version] 5.0 #50581 > > "http://files.pharo.org/vm/pharoS/raspbian/latest.zip" > > pi@raspberrypi ~/Pharo $ ./pharo -nodisplay Pharo.image eval '1 tinyBenchmarks' > '167429692 bytecodes/sec; 11160247 sends/sec' > > "http://www.mirandabanda.org/files/Cog/VM/VM.r3427/cogspurlinuxhtARM-15.33.3427.tgz" > > pi@raspberrypi ~/Pharo $ ./products/phcogspurlinuxhtRPi/pharo -nodisplay Pharo.image eval '1 tinyBenchmarks' > '166992824 bytecodes/sec; 11337746 sends/sec' > > "https://bintray.com/opensmalltalk/vm/download_file?file_path=cog_linux32ARMv6_pharo.cog.spur_201610142319.tar.gz" > > pi@raspberrypi ~/Pharo $ ./products/phcogspurlinuxhtRPi/pharo -nodisplay Pharo.image eval '1 tinyBenchmarks' > '166992824 bytecodes/sec; 11337746 sends/sec' > > That is no significant difference on a RPi 3, at all. Is this normal ? Am I missing something ? > > Thx, > > Sven > > PS: Just for reference, my Mac Book Pro is 10 times faster > > 1 tinyBenchmarks "'1323852617 bytecodes/sec; 174185794 sends/sec'" A stack VM (PharoS) getting the same results as a Spur VM (cog_linux32ARMv6_pharo.cog.spur_201610142319.tar.gz) is rather suspicious... At least on my Pi3, the spur Cog VM gives numbers around 250M bytecodes/160M sends.... which, while still "slow", is a decent bump in speed compared to what you're seeing. Cheers, Henry |
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Re: Cog VM on Raspberry Pi ?
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Re: Cog VM on Raspberry Pi ?
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Re: Cog VM on Raspberry Pi ?
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Re: Cog VM on Raspberry Pi ?
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Re: Cog VM on Raspberry Pi ?
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Re: Cog VM on Raspberry Pi ?
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In reply to this post by Sven Van Caekenberghe-2
That's the one I downloaded/ran Pharo on. Like Todd said, there's also a Spur VM shipped with raspbian (as part of nuscratch package, located in /usr/lib/squeak/5.*). Unless you've already uninstalled scratch/is running on an OS other than Raspbian, downloading a Squeak image and running the tinyBenchmarks in an image launched by squeak $PathToMyImage should give a good baseline, on my machine it yields comparable tinyBenchmark numbers to the above Pharo build. (In fact, it runs Pharo 6 images as well, the difference is mostly in plugins it seems. I guess you'll encounter errors if opening a file browser that attempts to use the extended FilePlugin prims, for example) I'd recommend focusing on verifying any externally interacting parts you intend to use work correctly, since that's generally the area that's most spotty. For instance, while FFI plugin ships with Pharo VM, you may (as I did on cursory testing with the vm linked above) get failing float/double call tests (60262 image), or downright crashes due to illegal instructions (latest 5.0 image) OSProcessPlugin shipped (externally) with the squeak cog vm has been sort of hit-and-miss, on above pharo vm it's built internal and seems to be working (but curiously, has no canonical source version from which it was generated in the Modules list...). If you plan on developing on the Pi rather than just deploying to, switching to Bitmapped Fonts asap is a good idea; iirc the work that was done to provide optimized arm-assembly primitives included (bitmap) font rendering. Disabling auto-complete and syntax-highlighting (that seem to tend to cause frequent noticeable pauses), and commenting out "write-entire-contents-to-file-every-keystroke" functionality from Playground code (so your SD-card doesn't die a premature death), are other small ways to make a less jarring experience of it. Or, framework use allowing, you could save yourself a lot of work flow interruption frustration and develop using a Squeak image instead. Cheers, Henry
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Re: Cog VM on Raspberry Pi ?
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In reply to this post by Sven Van Caekenberghe-2
There are two; without nuscratch package loaded, it's an old interpreter
(squeak script in /usr/bin launches /usr/lib/squeak/4.*), with nuscratch loaded (which it should be by default in recent Raspbian versions...), it's a cog vm. (squeak script in /usr/bin launches /usr/lib/squeak/5.*) Cheers, Henry > On 18 Oct 2016, at 10:50 , Sven Van Caekenberghe <[hidden email]> wrote: > > >> On 18 Oct 2016, at 22:16, Todd Blanchard <[hidden email]> wrote: >> >> There is a scratch on cog vm as part of the standard raspbian distro. >> >> Have you tried that? > > The Squeak VMs that come with raspbian seem to be of the older variant (I am using Pharo 5). > > You known, "This interpreter (vers. 6505) cannot read image file (vers. 6521)." > > Still, in order to be sure we are talking about the exact same VM, version info is needed. |
Re: Cog VM on Raspberry Pi ?
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In reply to this post by Sven Van Caekenberghe-2
I downloaded the one you linked (http://files.pharo.org/vm/pharoS/raspbian/latest.zip), but it was a pre-spur VM, so I had to use 50496 from the "preSpur" folder. It didn't recognize the -nodisplay parameter, so I had to open image normally to do tinyBenchmarks. Performance was fairly bad compared to Cog Spur (34M bytecodes, 2M sends), and in general not suitable for live editing of a Pharo image at all (8 seconds to open a browser, etc), so if a newer does not exist, I doubt it makes sense to spend effort creating one that reads Spur images other than as an intellectual exercize with a Cog VM available. Cheers, Henry Version infos of vms I've ran, in order of age: ./phcogspurlinuxhtRPi/pharo -version 5.0-201610142319 Sat Oct 15 02:45:47 UTC 2016 gcc 4.9.2 [Production Spur VM] CoInterpreter VMMaker.oscog-eem.1959 uuid: 2784931a-d7ba-431a-be8c-ec79b1e55684 Oct 15 2016 StackToRegisterMappingCogit VMMaker.oscog-eem.1959 uuid: 2784931a-d7ba-431a-be8c-ec79b1e55684 Oct 15 2016 VM: 201610142319 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Sat Oct 15 00:19:53 2016 +0100 $ Plugins: 201610142319 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Linux testing-gce-874b9d32-9a0b-447e-98d4-15ee5b4feaec 4.4.0-42-generic #62~14.04.1-Ubuntu SMP Fri Oct 7 23:15:48 UTC 2016 armv7l GNU/Linux plugin path: ./phcogspurlinuxhtRPi/lib/pharo/5.0-201610142319 [default: /home/veloxit/phcogspurlinuxhtRPi/lib/pharo/5.0-201610142319/] Included by nuscratch: squeak -version 5.0-201608180858 Mon Aug 22 18:41:57 PDT 2016 gcc 4.9.2 [Production Spur VM] CoInterpreter VMMaker.oscog-cb.1919 uuid: 00a8dd2a-bc8d-4552-b400-be781c8aabec Aug 22 2016 StackToRegisterMappingCogit VMMaker.oscog-cb.1919 uuid: 00a8dd2a-bc8d-4552-b400-be781c8aabec Aug 22 2016 VM: 201608180858 [hidden email]:Documents/Squeak/Rasbian-VM/vm $ Date: Thu Aug 18 10:58:48 2016 +0200 $ Plugins: 201608180858 [hidden email]:Documents/Squeak/Rasbian-VM/vm $ Linux Pi-3B-1 4.4.9-v7+ #884 SMP Fri May 6 17:28:59 BST 2016 armv7l GNU/Linux plugin path: /usr/lib/squeak/5.0-201608180858 [default: /usr/lib/squeak/5.0-201608180858/] ./PharoS/PharoS --version 3.9-7 #1 Thu Apr 9 14:59:10 CEST 2015 gcc 4.6.3 [Production ITHB VM] StackInterpreter VMMaker.oscog-jeanbaptistearnaud.828 uuid: ba8d2ed6-70b9-4309-8bf0-9eda9c0d1c2d Apr 9 2015 https://github.com/pharo-project/pharo-vm.git Commit: 32d18ba0f2db9bee7f3bdbf16bdb24fe4801cfc5 Date: 2015-03-24 11:08:14 +0100 By: Esteban Lorenzano <[hidden email]> Jenkins build #128 Linux pharo-contribution-raspberrypi-linux 3.2.0-58-generic #88-Ubuntu SMP Tue Dec 3 17:37:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux plugin path: /home/veloxit/PharoS/ [default: /home/veloxit/PharoS/] squeak.old (aka squeak , without nuscratch installed) (shell script doesn't forward to actual vm if not provided image path, hence the absolute): /usr/lib/squeak/4.10.2-2614/squeakvm -version 4.10.2-2614 #1 XShm Sat Nov 8 01:32:22 UTC 2014 /usr/bin/cc Linux bm-wb-01 3.16-trunk-armmp #1 SMP Debian 3.16-1~exp1 (2014-08-09) armv7l GNU/Linux plugin path: /usr/lib/squeak/4.10.2-2614/ [default: /usr/lib/squeak/4.10.2-2614/] |
Re: Cog VM on Raspberry Pi ?
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