Public bug reported: Colin King has done some analysis of kernel boot speed using different kernel compression methods. Results for x86 are at:
https://kernel.ubuntu.com/~cking/boot-speed-eoan-5.3/kernel-compression-method.txt https://kernel.ubuntu.com/~cking/boot-speed-eoan-5.3/boot-speed-compression-5.3-rc4.ods Testing of s390 gave the following: GZIP 31528972 LZ4 192348049 LZO 85990145 >From Colin: "I used the monotonic TOD timer using the stckf opcode to fetch a 64 bit time value. Not sure how this maps to 'real time' in seconds." Conclusion: We should switch x86 to LZ4 and s390 to LZO. PPC and ARM do not support LZO or LZ4, so we will stick with gzip there. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840934 Title: Change kernel compression method to improve boot speed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840934/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
