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authorAndras Timar <andras.timar@collabora.com>2022-01-22 22:00:56 +0100
committerThorsten Behrens <thorsten.behrens@allotropia.de>2022-01-23 15:13:03 +0100
commita244beeed618fc4507a65934932a1a6607c62804 (patch)
treeca5311c8992743f1858ed233d92f1c9253dee342 /solenv/bin/modules/installer
parent71a5a9437557d7c79046207b7304ccc10c8aeb68 (diff)
change rpm compression algorithm to multi threaded xz
Our baseline is CentOS 7, it's safe to switch to xz that is supported there. Here is my measurement on rpm package build time and package size on a 48 core machine, however 48 cores were never used (8-10 max). Compared to reference w9.gzdio which was used before the patch. Compression Build Package method time % size % w9.gzdio 100% 100% w7T.xzdio 69% 66% w6T.xzdio 62% 67% w5T.xzdio 55% 67% w4T.xzdio 41% 70% w3T.xzdio 31% 73% w2T.xzdio 26% 75% w1T.xzdio 24% 77% Conclusion: we'd like to optimize rather for the build time, therefore w1T.xzdio was picked. The package size was still smaller than the reference size, and the build time was 4x faster (in this measurement 18m16 -> 4m26). That makes a difference. Change-Id: Iabb532628d38a2d5091fa41fd08bfee69007d0ca Reviewed-on: https://gerrit.libreoffice.org/c/core/+/128800 Tested-by: Jenkins Reviewed-by: Thorsten Behrens <thorsten.behrens@allotropia.de>
Diffstat (limited to 'solenv/bin/modules/installer')
-rw-r--r--solenv/bin/modules/installer/epmfile.pm2
1 files changed, 1 insertions, 1 deletions
diff --git a/solenv/bin/modules/installer/epmfile.pm b/solenv/bin/modules/installer/epmfile.pm
index ecddeb395712..495366823604 100644
--- a/solenv/bin/modules/installer/epmfile.pm
+++ b/solenv/bin/modules/installer/epmfile.pm
@@ -1193,7 +1193,7 @@ sub set_autoprovreq_in_specfile
close (FINDREQUIRES);
}
- $autoreqprovline .= "%define _binary_filedigest_algorithm 1\n%define _binary_payload w9.gzdio\n";
+ $autoreqprovline .= "%define _binary_filedigest_algorithm 1\n%define _binary_payload w1T.xzdio\n";
for ( my $i = 0; $i <= $#{$changefile}; $i++ )
{