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| author | Grazvydas Ignotas <[email protected]> | 2017-12-29 02:05:05 +0200 |
|---|---|---|
| committer | Grazvydas Ignotas <[email protected]> | 2018-01-14 19:10:33 +0200 |
| commit | 6acf22a17991e3e98c35596f0b1cedfaebed6ec3 (patch) | |
| tree | f4b25b6f62b76d4649122e4b908239fef4399b63 /.dir-locals.el | |
| parent | 87f723408b3f4c088dcb819e88922918ae064d72 (diff) | |
util: use faster zlib's CRC32 implementaion
zlib provides a faster slice-by-4 CRC32 implementation than the
traditional single byte lookup one used by mesa. As most supported
platforms now link zlib unconditionally, we can easily use it.
Improvement for a 1MB buffer (avg MB/s, n=100, zlib 1.2.8):
i5-6600K C2D E4500
mesa zlib mesa zlib
443 1443 225% +/- 2.1% 403 1175 191% +/- 0.9%
It has been verified the calculation results stay the same after this
change.
Signed-off-by: Grazvydas Ignotas <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to '.dir-locals.el')
0 files changed, 0 insertions, 0 deletions