Ubuntu
initramfs-tools package

  1. Bug #1958148
  2. Activity log

Activity log for bug #1958148

Date Who What changed Old value New value Message
2022-01-17 14:25:45 Heinrich Schuchardt bug added bug
2022-01-18 15:55:36 Heinrich Schuchardt bug added subscriber Ubuntu Sponsors Team
2022-01-18 15:55:40 Heinrich Schuchardt initramfs-tools (Ubuntu): status New In Progress
2022-01-18 16:03:00 Heinrich Schuchardt tags fr-1977
2022-01-24 12:29:44 Mathew Hodson initramfs-tools (Ubuntu): importance Undecided Medium
2022-02-21 16:14:06 Julian Andres Klode removed subscriber Ubuntu Sponsors Team
2022-03-01 02:43:52 Trent Lloyd bug added subscriber Trent Lloyd
2022-03-01 15:00:34 Heinrich Schuchardt attachment added initramfs-tools-0.140ubuntu12..0.140ubuntu13.debdiff https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1958148/+attachment/5564513/+files/initramfs-tools-0.140ubuntu12..0.140ubuntu13.debdiff
2022-03-01 15:01:08 Heinrich Schuchardt bug added subscriber Ubuntu Sponsors Team
2022-03-07 10:41:06 Heinrich Schuchardt initramfs-tools (Ubuntu): status In Progress Confirmed
2022-03-07 11:31:09 Christian Ehrhardt  bug added subscriber Ubuntu Release Team
2022-03-07 12:29:23 Andreas Hasenack bug added subscriber Andreas Hasenack
2022-03-14 21:07:39 Michael Hudson-Doyle initramfs-tools (Ubuntu): importance Medium High
2022-03-15 15:04:59 Julian Andres Klode attachment added initramfs-tools_0.140ubuntu13.diff https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1958148/+attachment/5569316/+files/initramfs-tools_0.140ubuntu13.diff
2022-03-15 15:05:09 Julian Andres Klode removed subscriber Ubuntu Sponsors Team
2022-03-15 15:07:17 Julian Andres Klode initramfs-tools (Ubuntu): status Confirmed Fix Committed
2022-03-16 06:51:51 Launchpad Janitor initramfs-tools (Ubuntu): status Fix Committed Fix Released
2023-08-11 14:02:09 Benjamin Drung description On the Nezha board creating an initrd takes more than 1 hour. The compression level -19 for zstd is unwisely chosen. Here are durations and compression results for an SiFive Unmatched board with four cores using zstd: -T0 -1 => 13.92s, 136298155 bytes -T0 -2 => 15.73s, 131717830 bytes -T0 -3 => 26.11s, 127434653 bytes -T0 -4 => 29.31s, 126924540 bytes -T0 -5 => 36.44s, 125296557 bytes -T0 -6 => 39.36s, 124781669 bytes -T0 -7 => 46.56s, 116200665 bytes -T0 -8 => 51.95s, 113172941 bytes -T0 -9 => 55.89s, 112835937 bytes -T0 -10 => 61.32s, 108326876 bytes -T0 -11 => 64.32s, 108115060 bytes -T0 -12 => 76.37s, 108016478 bytes -T0 -13 => 148.99s, 109121308 bytes -T0 -14 => 156.58s, 108908574 bytes -T0 -15 => 228.64s, 109213554 bytes -T0 -16 => 380.26s, 107260643 bytes -T0 -17 => 453.36s, 103679714 bytes -T0 -18 => 714.79s, 100402249 bytes -T0 -19 => 1046.58s, 100188713 bytes Compression level between -2 to -10 offer a good compromise between CPU time and compression results. Ideally there would be a parameter that we could pass to mkinitfs. But for as fast solution we should simply replace -19 by -9 in mkinitramfs. On the Nezha board creating an initrd takes more than 1 hour. The compression level -19 for zstd is unwisely chosen. Here are durations and compression results for an SiFive Unmatched board with four cores using zstd: -T0 -1 => 13.92s, 136298155 bytes -T0 -2 => 15.73s, 131717830 bytes -T0 -3 => 26.11s, 127434653 bytes -T0 -4 => 29.31s, 126924540 bytes -T0 -5 => 36.44s, 125296557 bytes -T0 -6 => 39.36s, 124781669 bytes -T0 -7 => 46.56s, 116200665 bytes -T0 -8 => 51.95s, 113172941 bytes -T0 -9 => 55.89s, 112835937 bytes -T0 -10 => 61.32s, 108326876 bytes -T0 -11 => 64.32s, 108115060 bytes -T0 -12 => 76.37s, 108016478 bytes -T0 -13 => 148.99s, 109121308 bytes -T0 -14 => 156.58s, 108908574 bytes -T0 -15 => 228.64s, 109213554 bytes -T0 -16 => 380.26s, 107260643 bytes -T0 -17 => 453.36s, 103679714 bytes -T0 -18 => 714.79s, 100402249 bytes -T0 -19 => 1046.58s, 100188713 bytes Compression level between -2 to -10 offer a good compromise between CPU time and compression results. Ideally there would be a parameter that we could pass to mkinitfs. But for as fast solution we should simply replace -19 by -9 in mkinitramfs. Discussion on ubuntu-devel mailing list: https://lists.ubuntu.com/archives/ubuntu-devel/2021-December/041726.html
2023-12-12 17:00:29 Launchpad Janitor merge proposal linked https://code.launchpad.net/~waveform/ubuntu/+source/ubuntu-raspi-settings/+git/ubuntu-raspi-settings/+merge/457342
2023-12-12 17:01:02 Dave Jones merge proposal unlinked https://code.launchpad.net/~waveform/ubuntu/+source/ubuntu-raspi-settings/+git/ubuntu-raspi-settings/+merge/457342