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bug#44210: 28.0.50; project.el failed to work after customizing find-pro
From: |
Zhiwei Chen |
Subject: |
bug#44210: 28.0.50; project.el failed to work after customizing find-program to fd |
Date: |
Mon, 18 Jan 2021 09:15:03 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
I think I replied to the wrong thread, so forwarded it again.
> I benchmark it again on linux, where find is of 4.7.0 version and fd is of
> 8.2.1 version.
>
> Make sure the page cache is cleared before each benchmark.
>
> > sudo sysctl -w vm.drop_caches=3
>
> > cd llvm-project
>
> > sudo sysctl -w vm.drop_caches=3
> > time fd > /tmp/fd_output
> 1.04s user 4.11s system 522% cpu 0.987 total
>
> > sudo sysctl -w vm.drop_caches=3
> > time find > /tmp/find_output
> 0.06s user 0.20s system 7% cpu 3.354 total
>
> Since ‘fd’ is a multi-threaded program, the CPU percent is > 100%.
--
Zhiwei Chen