Vm-dev December 2018

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26 participants
279 discussions

[OpenSmalltalk/opensmalltalk-vm] ea5915: Fix the SerialPlugin build on linux (sqNullSerialP...
by GitHub 05 Dec '18

05 Dec '18

Branch: refs/heads/Cog Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: ea59155db6c643d3a4de062f2a85bfa2d9f7f5ed https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/ea59155db6c643d3a4… Author: Eliot Miranda <eliot.miranda(a)gmail.com> Date: 2018-12-03 (Mon, 03 Dec 2018) Changed paths: M platforms/Cross/plugins/SerialPlugin/sqNullSerialPort.c A platforms/unix/plugins/SerialPlugin/Makefile.inc M scripts/gitci Log Message: ----------- Fix the SerialPlugin build on linux (sqNullSerialPort.c must be excluded). Make sure sqNullSerialPort.c will compile other than on Carbon Mac OS <blush>. Have gitci check incoming if asked to do so. **NOTE:** This service has been marked for deprecation: https://developer.github.com/changes/2018-04-25-github-services-deprecation/ Functionality will be removed from GitHub.com on January 31st, 2019.

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FFI overhead comparison
by Ben Coman 05 Dec '18

05 Dec '18

How do we compare?... https://github.com/dyu/ffi-overhead#results-500m-calls I found this interesting (even though its beyond my ken...) "For those wondering why luajit is faster than C/C++/Rust, that's probably because it does direct calls to the function, while C/C++/Rust go through the PLT (procedure linkage table)." https://news.ycombinator.com/item?id=17161168 cheers -ben

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Minheadless trial
by Ben Coman 05 Dec '18

05 Dec '18

wow time flies, its been 18 months since Ronie announced his Minheadless VM branch... [1] http://forum.world.st/Minheadless-VM-flavour-status-update-td4928091.html I've been meaning this whole time to try it out. Recently in my meandering thoughts on FreeRTOS port, I guessed Minheadless might make a good starting basis to experiment with. So a quick test on Ubuntu16.04.3(Windows10-WSL)... Long ago I'd already done... git clone git@github.com:OpenSmalltalk/opensmalltalk-vm.git so I now did... cd opensmalltalk-vm git remote add ronie git@github.com:ronsaldo/opensmalltalk-vm.git git fetch ronie git checkout MinimalisticHeadless ./scripts/updateSCCSVersions cd build.minheadless.cmake/x64/pharo.stack.spur/ ./mvm VM=`pwd`/release/dist/pharo ls $VM ==> confirmed it exists cd ~/pharo wget http://files.pharo.org/image/70/latest-minimal-64.zip unzip latest-minimal-64.zip sudo $VM Pharo7.0-metacello-64bit-65cff7b.image eval "19 + 23" ==> 42 yay Particularly interesting from [1] is "using the same CMake scripts for building on the three platforms: Windows, Linux and OS X." So I thought I'd also give it a try under Windows10-VisualStudio2017. I hardly used VS before, so I'll detail what I did as a reminder for myself (and also in case someone might be able to help if I get stuck). Under a windows cmd.exe prompt (having installed git and cloned opensmalltalk-vm a long time ago) cd opensmalltalk-vm git remote add ronie git@github.com:ronsaldo/opensmalltalk-vm.git git fetch ronie git checkout -b MinimalisticHeadless ronie/MinimalisticHeadless I watched video [2] about CMake integration with Visual Studio 10. and checked the VS workloads configuration specified [2@1:13] using [3]. There is a CMakeLists.txt file in the git root folder, so.. started VS > File > Open > Folder... C:\Repos\OpenSmalltalk\opensmalltalk-vm The CMake command run ([2]@2:13) was... C:\...\cmake.exe -G "Ninja" -DCMAKE_INSTALL_PREFIX:PATH="C:\Users\Ben\CMakeBuilds\...\x86-Debug" -DCMAKE_CXX_COMPILER="C:/.../MSVC/14.14.26428/bin/HostX86/x86/cl.exe" -DCMAKE_C_COMPILER="C:/.../MSVC/14.14.26428/bin/HostX86/x86/cl.exe" -DCMAKE_BUILD_TYPE="Debug" -DCMAKE_MAKE_PROGRAM="C:\...\CMAKE\Ninja\ninja.exe" "C:\Repos\OpenSmalltalk\opensmalltalk-vm" I changed the cmake configuration [2@2:27] to "x64-Debug". For debug target [2@3:00] I chose "pharo.exe" Hey, thats pretty cool [2@4:05] that switching between targets changes the highlighting of #ifdef code. I had a moment when I was missing the "Debug and Launch Settings" menu item [2@4:40-4:55] and mentioned at [4], but maybe there was some clash with previously experimenting with git cloning opensmalltalk-vm from inside VS. After closing VS and reopening my cmd.exe git'd opensmalltalk-vm it showed up, but I didn't change any settings there. Then (with x64-Debug & pharo.exe selected) I went Cmake > Build All ==> 10 Errors, 9 Warnings, which I'll discuss in a followup post. cheers -ben [2] https://blogs.msdn.microsoft.com/vcblog/2016/10/05/cmake-support-in-visual-… [3] https://docs.microsoft.com/en-us/visualstudio/install/modify-visual-studio [4] https://blogs.msdn.microsoft.com/vcblog/2016/12/20/cmake-support-in-visual-… [5] https://developercommunity.visualstudio.com/content/problem/234808/cmake-de…

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[OpenSmalltalk/opensmalltalk-vm] Fixes for 64-bit MSVC minheadless build (#313)
by Ben Coman 04 Dec '18

04 Dec '18

Following on from @ronsaldo's PR #311, these are some additional fixes for 64-bit MSVC build from my minheadless trial (http://forum.world.st/Minheadless-trial-td5082569.html). We both made some changes around 32/64 bit detection in CMakeLists.txt so that still needs some work. All my other fixes were already covered in PR #311. You can view, comment on, or merge this pull request online at: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/313 -- Commit Summary -- * Fixes for 64-bit MSVC minheadless build -- File Changes -- M platforms/Cross/plugins/IA32ABI/x64win64abicc.c (3) M platforms/minheadless/windows/sqPlatformSpecific-Win32.c (6) M platforms/minheadless/windows/sqPlatformSpecific-Win32.h (4) -- Patch Links -- https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/313.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/313.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/313

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Build failed: opensmalltalk-vm 1.0.1502
by AppVeyor 04 Dec '18

04 Dec '18

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[OpenSmalltalk/opensmalltalk-vm] 82878b: Fixes for 64-bit MSVC minheadless build
by GitHub 04 Dec '18

04 Dec '18

Branch: refs/heads/Cog Home: https://github.com/OpenSmalltalk/opensmalltalk-vm Commit: 82878b3dd8870a2a41a3e10c161ae5650e224815 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/82878b3dd8870a2a41… Author: Ben Coman <btc(a)openInWorld.com> Date: 2018-12-04 (Tue, 04 Dec 2018) Changed paths: M platforms/Cross/plugins/IA32ABI/x64win64abicc.c M platforms/minheadless/windows/sqPlatformSpecific-Win32.c M platforms/minheadless/windows/sqPlatformSpecific-Win32.h Log Message: ----------- Fixes for 64-bit MSVC minheadless build Commit: fbca9d231f12ef6b3d6c41275a2756b90f366b38 https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/fbca9d231f12ef6b3d… Author: Eliot Miranda <eliot.miranda(a)gmail.com> Date: 2018-12-03 (Mon, 03 Dec 2018) Changed paths: M platforms/Cross/plugins/IA32ABI/x64win64abicc.c M platforms/minheadless/windows/sqPlatformSpecific-Win32.c M platforms/minheadless/windows/sqPlatformSpecific-Win32.h Log Message: ----------- Merge pull request #313 from bencoman/msvc-64bit-fixes Fixes for 64-bit MSVC minheadless build Compare: https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/ea59155db6c6...fb… **NOTE:** This service has been marked for deprecation: https://developer.github.com/changes/2018-04-25-github-services-deprecation/ Functionality will be removed from GitHub.com on January 31st, 2019.

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Build failed: opensmalltalk-vm 1.0.1501
by AppVeyor 04 Dec '18

04 Dec '18

1 0

Passed: OpenSmalltalk/opensmalltalk-vm#1519 (Cog - ea59155)
by Travis CI 04 Dec '18

04 Dec '18

Build Update for OpenSmalltalk/opensmalltalk-vm ------------------------------------- Build: #1519 Status: Passed Duration: 1 hr, 39 mins, and 35 secs Commit: ea59155 (Cog) Author: Eliot Miranda Message: Fix the SerialPlugin build on linux (sqNullSerialPort.c must be excluded). Make sure sqNullSerialPort.c will compile other than on Carbon Mac OS <blush>. Have gitci check incoming if asked to do so. View the changeset: https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/977516c84025...ea… View the full build log and details: https://travis-ci.org/OpenSmalltalk/opensmalltalk-vm/builds/463038234?utm_m… -- You can unsubscribe from build emails from the OpenSmalltalk/opensmalltalk-vm repository going to https://travis-ci.org/account/preferences/unsubscribe?repository=8795279&ut…. Or unsubscribe from *all* email updating your settings at https://travis-ci.org/account/preferences/unsubscribe?utm_medium=notificati…. Or configure specific recipients for build notifications in your .travis.yml file. See https://docs.travis-ci.com/user/notifications.

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Build failed: opensmalltalk-vm 1.0.1500
by AppVeyor 04 Dec '18

04 Dec '18

1 0

[OpenSmalltalk/opensmalltalk-vm] A better default eden size for 64-bits (#316)
by Eliot Miranda 04 Dec '18

04 Dec '18

The current default eden size for 64-bits is 8 Mb which is too small. The performance cost of generation scavenging on 64-bits is radically different at 8Mb vs e.g. 64Mb. For example, here are the GC stats and the time to run for recompiling the Morphic package in a trunk Squeak 640-bit image, collected by running FileStream stdout print: [(PackageInfo named: 'Morphic') methods do: [:mr| mr actualClass recompile: mr selector]] timeToRun; cr. FileStream stdout nextPutAll: (Smalltalk vm vmStatisticsReportString replaceAll: Character cr with: Character linefeed) squeak> 7061 uptime 0m 7s memory 85,073,920 bytes old 76,121,888 bytes (89.5%) young 7,190,528 bytes (8.5%) used 54,408,216 bytes (64%) free 26,774,568 bytes (31.5%) GCs 195 (38.2 ms between GCs) full 0 totalling 0 ms (0% runtime), avg 0 ms scavenges 195 totalling 82 ms (1.1% runtime), avg 0.4 ms tenures 21,139 (avg 108 tenures per scavenge) Code compactions 0 Aeolus.image$ spur64cfvm -eden 60m spurreader-64. <RecompileMorphicAndReport.st squeak> 6968 uptime 0m 7s memory 140,648,448 bytes old 76,121,888 bytes (54.1%) young 61,896,704 bytes (44%) used 62,854,824 bytes (44.7%) free 43,764,376 bytes (31.1%) GCs 23 (318.5 ms between GCs) full 0 totalling 0 ms (0% runtime), avg 0 ms scavenges 23 totalling 30 ms (0.41% runtime), avg 1.3 ms tenures 0 Code compactions 0 While the run-time varies very little (7 seconds to 6.97 seconds), the number of scavenges goes down enormously. The reason the run-time is relatively unaffected is because the generation scavenger is quite efficient. At an 8mb young space we see 195 scavenges with about a 1.1% runtime overhead. But at a 64mb young space we see 23 scavenges (a ratio of about 8, which mirrors the ratio of the sizes), but the run-time overhead is now only 0.41%; 82ms overhead vs 30ms overhead. So a larger young space is a good idea. The suggestion here is that on 64-bit platforms we tailor the default young space size to the available memory. See e.g. https://stackoverflow.com/questions/2513505/how-to-get-available-memory-c-g which provides code above sysconf on Unix and GlobalMemoryStatusEx on WIN32 for obtaining the total amount of physical memory available. Therefore we could use a larger young space on systems with a lot more memory; for example 2Mb of young space per Gb of physical memory would give a 64-mb young space on 32Gb machines such as my fully loaded 2018 MacBook Pro Core i9. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/316

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Vm-dev December 2018