Re: Which I/O scheduler is Fedora switching to in 4.21? mq-deadline or BFQ?

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[root@fnuc ~]# cat /sys/block/sda/queue/scheduler
noop deadline [cfq]
[root@fnuc ~]# insmod
/usr/lib/modules/4.19.8-300.fc29.x86_64/kernel/block/bfq.ko.xz
[root@fnuc ~]# lsmod | grep bfq
bfq                    69632  0
[root@fnuc ~]# cat /sys/block/sda/queue/scheduler
noop deadline [cfq]
[root@fnuc ~]#

This appears in dmesg at the time I insmod bfq
[148854.557310] io scheduler bfq registered

And
[root@fnuc ~]# dmesg | grep sched
[    3.109164] io scheduler noop registered
[    3.109174] io scheduler deadline registered
[    3.109285] io scheduler cfq registered (default)
[    3.109294] io scheduler mq-deadline registered
[    3.302592] sched_clock: Marking stable (3301306612,
1243588)->(3308582463, -6032263)
[   11.129620] systemd[1]: systemd-journald.service: Service has no
hold-off time (RestartSec=0), scheduling restart.
[148854.557310] io scheduler bfq registered
[root@fnuc ~]#


If you want the entire dmesg I'll send it offlist.


--
Chris Murphy
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