[Bug 1192457] New: ZSTD compressed kernel module files are 35% bigger
http://bugzilla.opensuse.org/show_bug.cgi?id=1192457 Bug ID: 1192457 Summary: ZSTD compressed kernel module files are 35% bigger Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: All OS: All Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: schwab@linux-m68k.org QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- # du -sh /lib/modules/*/kernel/ 91M /lib/modules/5.13.13-1-default/kernel/ 92M /lib/modules/5.14.14-1-default/kernel/ 125M /lib/modules/5.15.1-1.g0a42f4c-default/kernel/ # rpm -q --qf="%{NAME}-%{VERSION}: %{SIZE}\n" kernel-default kernel-default-5.13.13: 170499562 kernel-default-5.14.14: 171909997 kernel-default-5.15.1: 207900779 -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1192457 http://bugzilla.opensuse.org/show_bug.cgi?id=1192457#c1 Takashi Iwai <tiwai@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |martin.wilck@suse.com, | |tiwai@suse.com --- Comment #1 from Takashi Iwai <tiwai@suse.com> --- Some size growth was expected, but I'm not sure whether this is in the valid range. Martin? -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1192457 http://bugzilla.opensuse.org/show_bug.cgi?id=1192457#c4 Dominique Leuenberger <dimstar@opensuse.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dimstar@opensuse.org --- Comment #4 from Dominique Leuenberger <dimstar@opensuse.org> --- I just was hit by that as well in Factory - the main problem being that this adds like 30MB of storage requirement to the live images, with a rescue CD being 650MB (actual CD size), 30MB is a lot to cater for - not sure if and how I can find 30MB to throw off the live images to make the kernel fit -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1192457 http://bugzilla.opensuse.org/show_bug.cgi?id=1192457#c26 --- Comment #26 from Dominique Leuenberger <dimstar@opensuse.org> --- It's becoming slightly fun: home:dimstar:Live built successfully with a kernel, that seems to be zstd compressed. kernel-default sizes (the one we had in Factory for a day vs the one I built now in my home): 143545040 Nov 8 20:36 kernel-default-5.15.0-1.1.x86_64.rpm 119020581 Nov 10 11:39 kernel-default-5.15.1-3.2.x86_64.rpm for reference, the latest TW kernel: 107392383 Oct 19 09:24 kernel-default-5.14.11-1.2.x86_64.rpm both rpm's contain the modules as .zst, and vmlinux.xz (matching the config.sh settings) $PWD/usr/lib/modules> du -sh * 147M 5.15.0-1-default/ 124M 5.15.1-3-default the version diff between what we had in Factory (5.15.0) and my home: -Version: 5.15.0 +Version: 5.15.1 %if 0%{?is_kotd} -Release: <RELEASE>.g5a1fa5e +Release: <RELEASE>.g0a42f4c Seems the 5.15.1 shrunk quite a bit compared to 5.15.0 even when both are using zstd full diff: osc rdiff openSUSE:Factory kernel-source home:dimstar:Live -r 615 One other, rather interesting observation: 5.15.0: -rwxr-xr-x 1 dimstar users 8491432 Nov 8 19:27 vmlinux.xz* -rw-r--r-- 1 dimstar users 11416144 Nov 8 20:27 vmlinuz 5.15.1 -rwxr-xr-x 1 dimstar users 11181228 Nov 6 20:09 vmlinux.xz* -rw-r--r-- 1 dimstar users 9981672 Nov 10 11:31 vmlinuz With the current numbers of 5.15.1 as seen in home:dimstar:Live we seem to be able to survive the Live image builds without further trickery - or I miss something obviously wrong in my branch -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1192457 http://bugzilla.opensuse.org/show_bug.cgi?id=1192457#c27 --- Comment #27 from Dominique Leuenberger <dimstar@opensuse.org> --- A possible difference was identified: my branch has debuginfo disabled - likely causing quite some difference -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1192457 Guillaume GARDET <guillaume.gardet@arm.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |guillaume.gardet@arm.com -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1192457 http://bugzilla.opensuse.org/show_bug.cgi?id=1192457#c47 --- Comment #47 from OBSbugzilla Bot <bwiedemann+obsbugzillabot@suse.com> --- This is an autogenerated message for OBS integration: This bug (1192457) was mentioned in https://build.opensuse.org/request/show/935224 15.4 / livecd-openSUSE -- You are receiving this mail because: You are on the CC list for the bug.
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