Hi Alex,
On 11/20/24 4:03 PM, Alexander Kanavin via lists.openembedded.org wrote:
From: Alexander Kanavin <[email protected]>
zstd uses 3 by default, 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.
Signed-off-by: Alexander Kanavin <[email protected]>
---
meta/classes-global/package_rpm.bbclass | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/meta/classes-global/package_rpm.bbclass
b/meta/classes-global/package_rpm.bbclass
index ddc4bf3a6a5..b2b7fafa177 100644
--- a/meta/classes-global/package_rpm.bbclass
+++ b/meta/classes-global/package_rpm.bbclass
@@ -10,7 +10,7 @@ IMAGE_PKGTYPE ?= "rpm"
RPM = "rpm"
RPMBUILD = "rpmbuild"
-RPMBUILD_COMPMODE ?= "${@'w19T%d.zstdio' % int(d.getVar('ZSTD_THREADS'))}"
+RPMBUILD_COMPMODE ?= "${@'w3T%d.zstdio' % int(d.getVar('ZSTD_THREADS'))}"
Since we have a variable containing the compression level for ZSTD
(ZSTD_COMPRESSION_LEVEL), should we use it? The downside is that it's
prefixed with a dash, which would need to remove before using it (or
update the variable to not contain it and add it where the variable is
currently used.
Cheers,
Quentin
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