| commit | 27a80359c86b4520415dc699591aa432f1838f6e | [log] [tgz] |
|---|---|---|
| author | Vy Nguyen <vyng@google.com> | Fri Nov 12 20:26:30 2021 -0500 |
| committer | Copybara-Service <copybara-worker@google.com> | Fri Nov 12 18:01:06 2021 -0800 |
| tree | 1cc475954aab4250e3aa4ddc5d45e73ad6ad7f8e | |
| parent | e213782845aa8ef4ccdd080645c55f727e5b911c [diff] |
[lld-macho] Parallelize scanning the symbol tables in export/unexport-ing.
(Split from D113167)
Benchmarking on one of our large apps which exports a few thousands symbols,
this showed an improvement of ~17%.
x ./LLD_no_parallel.txt
+ ./LLD_with_parallel.txt
N Min Max Median Avg Stddev
x 10 84.01 89.41 88.64 87.693 1.7424061
+ 10 71.9 74.29 72.63 72.753 0.77734663
Difference at 95.0% confidence
-14.94 +/- 1.26763
-17.0367% +/- 1.44553%
(Student's t, pooled s = 1.34912)
(wallclock)
Differential Revision: https://reviews.llvm.org/D113820
GitOrigin-RevId: ad932320d89684e23f7952e54bc90c96598db1a3
This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.
lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.
In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.
It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz
The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.