From 223ea50950f97ed4e67311dfcffed7ffc27a7cd3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= Date: Wed, 14 Aug 2019 15:57:42 +0200 Subject: [PATCH] udev: use bfq as the default scheduler As requested in https://bugzilla.redhat.com/show_bug.cgi?id=1738828. Test results are that bfq seems to behave better and more consistently on typical hardware. The kernel does not have a configuration option to set the default scheduler, and it currently needs to be set by userspace. See the bug for more discussion and links. --- rules.d/60-block-scheduler.rules | 5 +++++ rules.d/meson.build | 1 + 2 files changed, 6 insertions(+) create mode 100644 rules.d/60-block-scheduler.rules diff --git a/rules.d/60-block-scheduler.rules b/rules.d/60-block-scheduler.rules new file mode 100644 index 0000000000..480b941761 --- /dev/null +++ b/rules.d/60-block-scheduler.rules @@ -0,0 +1,6 @@ +# do not edit this file, it will be overwritten on update + +ACTION=="add", SUBSYSTEM=="block", \ + KERNEL=="mmcblk*[0-9]|msblk*[0-9]|mspblk*[0-9]|sd*[!0-9]|sr*", \ + ENV{DEVTYPE}=="disk", \ + ATTR{queue/scheduler}="bfq" diff --git a/rules.d/meson.build b/rules.d/meson.build index ca4445d774..38d6aa6970 100644 --- a/rules.d/meson.build +++ b/rules.d/meson.build @@ -3,6 +3,7 @@ rules = files(''' 60-autosuspend.rules 60-block.rules + 60-block-scheduler.rules 60-cdrom_id.rules 60-drm.rules 60-evdev.rules