Re: systemd-243-rc2
Thanks, so it looks like virtio and xen pv block devices (vd* and xvd*) will stick with mq-deadline on Fedora. ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
Re: systemd-243-rc2
On Thu, Aug 22, 2019 at 05:44:13PM -, zfnoc...@gmail.com wrote: > > - BFQ is used as the default scheduler for disks, mmc cards, etc. > Perhaps I am not seeing the right patch, but looking at what was posted on > github [1], doesn't this udev rule skip over eMMC and SD cards which appear > as "/dev/mmcblk#"? Yes, you're looking at the wrong patch. Setting BFQ is a downstream decision: https://src.fedoraproject.org/rpms/systemd/blob/d7b2d46533ca7c2a2b9092ff9ef0dae12cdb3ef2/f/464a73411c13596a130a7a8f0ac00ca728e5f69e.patch -- Tomasz .. oo o. oo o. .o .o o. o. oo o. .. Torcz.. .o .o .o .o oo oo .o .. .. oo oo o.o.o. .o .. o. o. o. o. o. o. oo .. .. o. ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
Re: systemd-243-rc2
> - BFQ is used as the default scheduler for disks, mmc cards, etc. Perhaps I am not seeing the right patch, but looking at what was posted on github [1], doesn't this udev rule skip over eMMC and SD cards which appear as "/dev/mmcblk#"? Also from the github discussion, what was ultimately decided regarding the IO scheduler for virtual block devices? [1] https://github.com/systemd/systemd/pull/13321/commits/5ab4d083dbe0a1ae095875c4af6ac26749b67211 ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
Re: systemd-243-rc2
On Thu, Aug 22, 2019 at 02:09:03PM +0100, Tom Hughes wrote: > On 22/08/2019 13:10, Zbigniew Jędrzejewski-Szmek wrote: > > >- BFQ is used as the default scheduler for disks, mmc cards, etc. > > [https://bugzilla.redhat.com/show_bug.cgi?id=1738828] > > Looking at the patch you're applying it looks like NVME disks > are not currently included - was that deliberate? Yep. BFQ maintainer said: > The rule doesn't consider nvme devices either, but, in this respect, > I'd agree with testing this change with only single-queue devices > first. See https://github.com/systemd/systemd/pull/13321 for the full discussion. > I realise considerations may be different for SSDs but SATA SSDs > do seem to be included and the bug explicitly mentions it as being > suitable for SSDs. If this experiment gives positive results, we can easily extending the rule to cover more devices. Zbyszek ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
Re: systemd-243-rc2
On 22/08/2019 13:10, Zbigniew Jędrzejewski-Szmek wrote: - BFQ is used as the default scheduler for disks, mmc cards, etc. [https://bugzilla.redhat.com/show_bug.cgi?id=1738828] Looking at the patch you're applying it looks like NVME disks are not currently included - was that deliberate? I realise considerations may be different for SSDs but SATA SSDs do seem to be included and the bug explicitly mentions it as being suitable for SSDs. Tom -- Tom Hughes (t...@compton.nu) http://compton.nu/ ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
systemd-243-rc2
New release of systemd is now building in rawhide and branched. Two important changes: - The unified cgroup hierarchy (cgroupsv2) is now the default. Use systemd.unified-cgroup-hierarchy=0 on the kernel command line to undo this change. [https://fedoraproject.org/wiki/Changes/CGroupsV2] - BFQ is used as the default scheduler for disks, mmc cards, etc. [https://bugzilla.redhat.com/show_bug.cgi?id=1738828] There's a bunch of fixes too since -rc1, in particular in systemd-networkd. Enjoy! Zbyszek ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
