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package_rpm: use zstd's default compression level

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zstd uses 3 by default (and ZSTD_COMPRESSION_LEVEL is set to that),
while 19 is the highest and slowest.

It's not clear why 19 was picked to begin with, possibly
I copy-pasted it from rpm's examples without thinking:
https://git.yoctoproject.org/poky/commit/?h=master-next&id=4a4d5f78a6962dda5f63e9891825c80a8a87bf66

This brings significant speedups in rpm's compression step:
for example compressing webkitgtk takes 11s instead of 36s.

The rpm size increases from 175648k to 234860k. I think it's
a worthy default tradeoff.

(From OE-Core rev: f1c7d76361425c85d68ad1f61be1e7ff05df4bab)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Alexander Kanavin 2024-11-20 16:32:04 +01:00 committed by Richard Purdie
parent 263468c351
commit badb62ad01
1 changed files with 1 additions and 1 deletions
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2
meta/classes-global/package_rpm.bbclass
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@ -10,7 +10,7 @@ IMAGE_PKGTYPE ?= "rpm"
RPM = "rpm"
RPMBUILD = "rpmbuild"
RPMBUILD_COMPMODE ?= "${@'w19T%d.zstdio' % int(d.getVar('ZSTD_THREADS'))}"
RPMBUILD_COMPMODE ?= "${@'w%dT%d.zstdio' % (int(d.getVar('ZSTD_COMPRESSION_LEVEL')), int(d.getVar('ZSTD_THREADS')))}"
PKGWRITEDIRRPM = "${WORKDIR}/deploy-rpms"