marxin

marxin

Moses machine translation performance tuning

a project by marxin

Moses is a statistical machine translation system that allows you to automatically train translation models for any language pair. Intention of the project is to tune up existing software, where a glimpse shows that majority of time is consumed by memory allocation, dynamic casting and other calculation non-related stuff. I would like to inspect many techniques (like perf profiling, GCC LTO, GCC profile-guided optimization, code refactoring, OpenTuner, etc.) which may bring really significant performance gain. Moreover, it would be really beneficial to come up with a cookbook that can be used by folk in general. If possible, I would like to create a step-by-step performance improvement graphs.

Updated about 3 years ago. 4 hacker ♥️.

GCC Performance/Regression Dashboard

a project by marxin

For development purpose, it is very useful to have an infrastructure that can spot regressions based on commit base. Currently, our existing infrastructure runs mainly SPEC benchmark and is cumbersome from perspective of any further development. I would like to build a replacement that will combine buildbot framework with a custom web project (based on Django framework). The web project will be used both for submitting reports coming from a buildbot slave and for UI which will serve plots and data. If you want to inspire a bit more, please visit Chrome Performance Dashboard or Mozilla telemetry. I hope I can make a simple extendable project that is going to eventually replace existing implementation.

Updated about 5 years ago. No love.

kGraft analysis tool

an idea by marxin

kgraft-analysis-tool is a simple tool capable of showing IPA cloning decisions made by modified version of the GCC compiler: https://github.com/marxin/gcc/tree/dump-ipa-clones

Updated about 3 years ago. 4 hacker ♥️. Has no hacker: grab it!

GCC bisection tool

an idea by marxin

Introduction

Bugzilla of the GCC compiler is full of errors where the compiler generates a crash report (yeah commonly known as ICE). When isolating an issues, it's very useful to identify which releases are affected, ideally which concrete revision the culprit. The common approach is to utilize git bisect command, however doing that for many issues can be exhausting.

Updated about 3 years ago. 1 hackers ♥️. Has no hacker: grab it!

Learn rtags (vim-rtags) how to properly do code completion based on LLVM API

an idea by marxin

Both YouCompleteMe and rtags are powerful tools that provide useful IDE features to both VIM and Emacs editors. Both use llvm front-end in order to provide code completion hints. Suggestion based on YCM are fine, however I believe that rtags is better tool because it has a concept of project and provides for instance GoToDefinition command, one that's not supported by YCM. Goal of the project is to provide better code completion hints for rtags, where one has to filter out and sort results given by the FE. Apart from that, calling code completion for 'myvar.myf^', LLVM prefer to be given 'my_var.^', as it understands one expects member function and variables.

Updated about 5 years ago. No love. Has no hacker: grab it!

Use LNT tool to set-up periodic SPEC benchmarks

an idea by marxin

Using the LNT tool we can replace our current gcc.opensuse.org website. Apart from LNT, I would also utilize Builbot python build system.

Updated over 4 years ago. No love. Has no hacker: grab it!

Use C++ static analyzers for GCC codebase

an idea by marxin

I'm planning to experiment with clang-static-analyzer, cppcheck and maybe with coverity: Wiki page with list of static analyzers

Updated almost 3 years ago. 1 hackers ♥️. 1 follower. Has no hacker: grab it!

OpenBLAS: test performance on AMD Zen2 and learn more about the implementation

an idea by marxin

OpenBLAS is a high-performance linear algebra library that's implemented mainly with vector instruction directly written in assembly language. The goal of the project is to learn more about the implementation and get familiar with the vector instructions.

Updated over 2 years ago. No love. 1 follower. Has no hacker: grab it!
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  • about 1 year ago: marxin liked Support UEFI network boot in Orthos Prague
  • over 2 years ago: marxin added keyword "performance" to OpenBLAS: test performance on AMD Zen2 and learn more about the implementation
  • over 2 years ago: marxin added keyword "gcc" to OpenBLAS: test performance on AMD Zen2 and learn more about the implementation
  • over 2 years ago: marxin originated OpenBLAS: test performance on AMD Zen2 and learn more about the implementation
  • over 2 years ago: marxin liked crash-python
  • over 2 years ago: marxin liked RPMlint cleanups
  • over 2 years ago: marxin liked Improve debug information for LTO compiled objects
  • almost 3 years ago: marxin added keyword "clang" to Use C++ static analyzers for GCC codebase
  • almost 3 years ago: marxin originated Use C++ static analyzers for GCC codebase
  • over 4 years ago: marxin originated Use LNT tool to set-up periodic SPEC benchmarks
  • over 4 years ago: marxin liked Compile Factory or some components entirely with Address Sanitizer enabled and push it to openQA
  • about 5 years ago: marxin added keyword "vim" to Learn rtags (vim-rtags) how to properly do code completion based on LLVM API
  • about 5 years ago: marxin added keyword "llvm" to Learn rtags (vim-rtags) how to properly do code completion based on LLVM API
  • about 5 years ago: marxin added keyword "rtags" to Learn rtags (vim-rtags) how to properly do code completion based on LLVM API
  • about 5 years ago: marxin added keyword "codecompletion" to Learn rtags (vim-rtags) how to properly do code completion based on LLVM API
  • about 5 years ago: marxin originated Learn rtags (vim-rtags) how to properly do code completion based on LLVM API
  • almost 6 years ago: marxin originated GCC bisection tool
  • over 6 years ago: marxin added keyword "gcc" to kGraft analysis tool
  • over 6 years ago: marxin added keyword "kgraft" to kGraft analysis tool
  • over 6 years ago: marxin originated kGraft analysis tool
  • about 7 years ago: marxin started GCC Performance/Regression Dashboard
  • about 7 years ago: marxin added keyword "django" to GCC Performance/Regression Dashboard
  • about 7 years ago: marxin added keyword "gcc" to GCC Performance/Regression Dashboard
  • about 7 years ago: marxin added keyword "buildbot" to GCC Performance/Regression Dashboard
  • about 7 years ago: marxin originated GCC Performance/Regression Dashboard
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