From: pavel <pavel@pavlinux.ru>
To: "Wolfgang M. Reimer" <linuxball@gmail.com>,
linux-rt-users@vger.kernel.org
Subject: Re: Where IOSCHED ?
Date: Sat, 25 Jul 2015 04:42:11 +0300 [thread overview]
Message-ID: <55B2E973.4060908@pavlinux.ru> (raw)
In-Reply-To: <55B206CF.3050000@gmail.com>
24.07.2015 12:35, Wolfgang M. Reimer пишет:
> On 22.07.2015 22:05, Pavel Vasilyev wrote:
>
>> # dmesg | grep sched
>> [ 0.387902] io scheduler noop registered
>> [ 0.387989] io scheduler deadline registered
>> [ 0.388079] io scheduler cfq registered (default)
>>
> # dmesg | grep sched
> [ 0.516085] io scheduler noop registered
> [ 0.516089] io scheduler deadline registered (default)
> [ 0.516096] io scheduler cfq registered
>
>> # cat /boot/config-3.18.17-rt14 | grep IOSCHED
>> CONFIG_IOSCHED_NOOP=y
>> CONFIG_IOSCHED_DEADLINE=y
>> CONFIG_IOSCHED_CFQ=y
>> CONFIG_CFQ_GROUP_IOSCHED=y
>> CONFIG_DEFAULT_IOSCHED="cfq"
>>
> # cat /boot/config-3.18.17-rt14 | grep IOSCHED
> CONFIG_IOSCHED_NOOP=y
> CONFIG_IOSCHED_DEADLINE=y
> CONFIG_IOSCHED_CFQ=y
> CONFIG_CFQ_GROUP_IOSCHED=y
> CONFIG_DEFAULT_IOSCHED="deadline"
>
>
>> # cat /sys/block/sda/queue/scheduler
>> none
>>
> # cat /sys/block/sda/queue/scheduler
> noop [deadline] cfq
>
>> # uname -a
>> Linux localhost 3.18.17-rt14 #1 SMP PREEMPT RT Wed Jul 22 18:49:51 MSK 2015 x86_64 GNU/Linux
> # uname -a
> Linux t520-wolf 3.18.17-rt14 #1 SMP PREEMPT RT Tue Jul 7 14:23:12 CEST 2015 x86_64 x86_64 x86_64 GNU/Linux
>
>
> Hi Pavel,
>
> so in my case /sys/block/sda/queue/scheduler shows the correct I/O
> schedulers for the *same* kernel (3.18.17-rt14). The only difference is
> that my default I/O scheduler is "deadline".
>
> Wolfgang
>
Maybe my mistake, but I use a Soft RAID1
$ cat /sys/block/{sd,md}*/queue/scheduler
none
none
none
none
none
none
--
Other server (Debian 6.0.10): non RT, but with soft RAID1 too.
$ uname -a
Linux mail 2.6.32-5-amd64 #1 SMP Wed Jun 17 16:09:06 UTC 2015 x86_64 GNU/Linux
$ cat /sys/block/{sd,md}*/queue/scheduler
noop anticipatory deadline [cfq]
noop anticipatory deadline [cfq]
none
none
none
here: sda,sdb,md0,md1,md2,md3
--
--
To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
prev parent reply other threads:[~2015-07-25 1:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-22 20:05 Where IOSCHED ? Pavel Vasilyev
2015-07-23 12:39 ` Sebastian Andrzej Siewior
2015-07-25 1:44 ` pavel
2015-07-25 11:27 ` pavel
2015-07-24 9:35 ` Wolfgang M. Reimer
2015-07-25 1:42 ` pavel [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=55B2E973.4060908@pavlinux.ru \
--to=pavel@pavlinux.ru \
--cc=linux-rt-users@vger.kernel.org \
--cc=linuxball@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.