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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/07/12 02:31:20 UTC

[GitHub] [arrow] cyb70289 commented on a change in pull request #10690: ARROW-13283: [Developer Tools] Support passing CPU/memory limits to Docker

cyb70289 commented on a change in pull request #10690:
URL: https://github.com/apache/arrow/pull/10690#discussion_r667586087



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File path: docker-compose.yml
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@@ -62,6 +62,14 @@ x-ccache: &ccache
   CCACHE_MAXSIZE: 500M
   CCACHE_DIR: /ccache
 
+# CPU/memory limits to pass to Docker. These values emulate GitHub Actions:
+# https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners
+x-limits:
+  # Note we use cpuset and not cpus since Ninja only detects and limits parallelism

Review comment:
       Tested `--cpus` and `--cpuset-cpus`.
   With `--cpuset-cpus=0,1`, ninja spawns 2 jobs, as expected.
   With `--cpus=2`, ninja spawns 32 jobs on my 32 core machine, though only 2 host cores can be used.




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