| Bug ID | 1200487 |
|---|---|
| Summary | LTO: the effect on the kernel |
| Classification | openSUSE |
| Product | openSUSE Tumbleweed |
| Version | Current |
| Hardware | Other |
| OS | Other |
| Status | NEW |
| Severity | Normal |
| Priority | P5 - None |
| Component | Kernel |
| Assignee | kernel-performance-bugs@suse.de |
| Reporter | jslaby@suse.com |
| QA Contact | qa-bugs@suse.de |
| CC | mliska@suse.cz |
| Found By | --- |
| Blocker | --- |
May I ask the performance team to perform some quick runtime performance measurements of the effect of Link time optimizations (LTO) performed on the kernel? There is a project with LTO patches and LTO enabled on the top of 5.18.3: https://build.suse.de/project/monitor/home:jirislaby:kernel-lto And the same source base, but LTO disabled by the config: https://build.suse.de/project/monitor/home:jirislaby:kernel-lto-disabled The diff between those is minimal: https://build.suse.de/package/rdiff/home:jirislaby:kernel-lto-disabled/kernel-source?opackage=kernel-source&oproject=home%3Ajirislaby%3Akernel-lto&rev=3 Thanks.