FS#55061 - [linux] Enable BFQ scheduler

Attached to Project: Arch Linux
Opened by Mitchell Richters (mjr4077au) - Sunday, 06 August 2017, 23:53 GMT
Last edited by Doug Newgard (Scimmia) - Monday, 07 August 2017, 04:11 GMT
Task Type Feature Request
Category Packages: Extra
Status Closed
Assigned To No-one
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description: Scheduler has been merged, but not available for use:
https://www.phoronix.com/scan.php?page=news_item&px=BFQ-Queued-Linux-4.12


Additional info:
* Not enabled as of 4.12.4-1


Steps to reproduce:

[mitchr@mitchr-e7450 ~]$ cat /sys/block/sda/queue/scheduler
noop [deadline] cfq
This task depends upon

Closed by  Doug Newgard (Scimmia)
Monday, 07 August 2017, 04:11 GMT
Reason for closing:  None
Comment by Doug Newgard (Scimmia) - Monday, 07 August 2017, 04:10 GMT
% uname -r
4.12.4-1-ARCH
% zgrep -i bfq /proc/config.gz
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y

It requires you to run scsi blk_mq, which is off by default in Arch because of stability problems.

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