[SOLVED] Unable to load bfq scheduler with kernel linux-ck-corei7-avx

cjpembo · 2011-08-23 16:55:26

Installed precompiled package linux-ck-corei7-avx from the repo-ck repo as detailed here:

https://wiki.archlinux.org/index.php/Linux-ck

The wiki implies that I can set the bfq scheduler on my drive as follows:

echo bfq > /sys/block/sda/queue/scheduler

but I get:

bash: echo: write error: Invalid argument

I don't even see the bfq scheduler available:

cat /sys/block/sda/queue/scheduler
noop deadline [cfq]

I cannot modprobe the bfq-iosched module; it's supposed to be in the kernel anyway...

Am I missing something easy here?

dmesg | grep schedule
[    0.989181] io scheduler noop registered
[    0.989182] io scheduler deadline registered
[    0.989207] io scheduler cfq registered (default)
[    1.233807] BFS CPU scheduler v0.406 by Con Kolivas.

Do I need some grub kernel option?

Can't wait to test it and feel the plecebo effect first-hand.

Last edited by cjpembo (2011-08-24 02:00:59)

ilusi0n · 2011-08-23 19:07:16

As far as I know there isn't bfq for kernel 3.* yet. So bfq is not available yet.

graysky · 2011-08-23 20:16:04

ilusi0n wrote:

As far as I know there isn't bfq for kernel 3.* yet. So bfq is not available yet.

+1. Paolo hasn't written it or if he has, it's not publicity released. You aren't doing anything wrong.

I'm assuming you're following this thread so I won't reply to your email.

Last edited by graysky (2011-08-23 20:17:15)

cjpembo · 2011-08-24 02:00:06

Well I've just jumped the gun then.. thanks for the info.

MartinZ · 2011-08-28 16:18:27

Thanks for the clarification, I was having the same problem. Shouldn't this be added to the wiki of linux-ck?

graysky · 2011-08-28 16:26:49

MartinZ wrote:

Thanks for the clarification, I was having the same problem. Shouldn't this be added to the wiki of linux-ck?

I just did... FYI, anyone can make changes to the wiki ;-x

Arch Linux

#1 2011-08-23 16:55:26

[SOLVED] Unable to load bfq scheduler with kernel linux-ck-corei7-avx

#2 2011-08-23 19:07:16

Re: [SOLVED] Unable to load bfq scheduler with kernel linux-ck-corei7-avx

#3 2011-08-23 20:16:04

Re: [SOLVED] Unable to load bfq scheduler with kernel linux-ck-corei7-avx

#4 2011-08-24 02:00:06

Re: [SOLVED] Unable to load bfq scheduler with kernel linux-ck-corei7-avx

#5 2011-08-28 16:18:27

Re: [SOLVED] Unable to load bfq scheduler with kernel linux-ck-corei7-avx

#6 2011-08-28 16:26:49

Re: [SOLVED] Unable to load bfq scheduler with kernel linux-ck-corei7-avx

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