I agree with this, my first impression after installing was file copying
seemed to lock up my system, with deadline it doesn't
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Title:
Also it has been changed for the server, but not the desktop.
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Title:
default I/O scheduler should be change from CFQ to deadline
To
See bug #1008400. Seems like the default is now changed to deadline.
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Title:
default I/O scheduler should be change from CFQ to deadline
deadline I/O scheduler
* write_expire - the number of milliseconds before a write IO
request expires
i think that the default write_expire should be 2500
in stead of the default write_expire of 5000
i think there should be more testing for the
Default I/O scheduler...
-
CFQ [cfq] (Completely Fair Queuing) is an I/O scheduler for the Linux
kernel and default under many Linux distributions.
Noop scheduler (noop) is
distro's could make simple applet to change i/o scheduler.
And later on users depending on their workloads can choose whatever they
want.
--
* CFQ I/O scheduler
* Noop I/O scheduler
* Deadline I/O scheduler
* Anticipatory I/O scheduler
--
default I/O
maybe ubuntu could make simple applet to
change etc/rc.local file
to change I/O scheduler
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default I/O scheduler should be change from CFQ to deadline
https://bugs.launchpad.net/bugs/631871
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-- idea - -
use Deadline I/O scheduler for boot up ( etc/default/grub OR grub.cfg )
and
switch to CFQ I/O scheduler for Desktop (etc/rc.local file)
-- idea - -
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default I/O scheduler should be change from CFQ to deadline
https://bugs.launchpad.net/bugs/631871
You received this bug
Thank you for your suggestion. However, the changes you are requesting
aren't really a bug and require more discussion, which should be done on
an appropriate mailing list or forum.
http://www.ubuntu.com/support/community/mailinglists might be a good
start for determining which mailing list to
elevator=cfq (default) cause starvation
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default I/O scheduler should be change from CFQ to deadline
https://bugs.launchpad.net/bugs/631871
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381300
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default I/O scheduler should be change from CFQ to deadline
https://bugs.launchpad.net/bugs/631871
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i get better speed / performance out of
Noop I/O scheduler - OR - Deadline I/O scheduler
--
both work better then CFQ I/O scheduler
** Changed in: ubuntu
Status: Invalid = Opinion
--
default I/O scheduler should be change from CFQ to
Noop I/O scheduler works best at these time
- Dell Latitude 120L , 1GB RAM , 40GB hard drive (disk)(HDD)
Noop works better then Deadline
Deadline works better the CFQ
(this is what i have test on the Dell Latitude 120L)
with Noop I/O scheduler i can get up to load average: 3 to 4 +
with Deadline I/O scheduler i can get up to load average: 2 to 3 +
with CFQ I/O scheduler i can get up to load average: 1 to 2
...before system / computer SLOW DOWN
--
default I/O scheduler should be change from CFQ to deadline
** Changed in: ubuntu
Status: Opinion = Invalid
** Changed in: ubuntu
Status: Invalid = Won't Fix
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default I/O scheduler should be change from CFQ to deadline
https://bugs.launchpad.net/bugs/631871
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Bugs,
bug in CFQ I/O scheduler ?
** Description changed:
-
i think that the default I/O scheduler
- should be change from CFQ to deadline
+ should be change from CFQ to deadline
-
i have test CFQ and
@Charlie, DLHDavidLH,
The correct place to discuss this is on the ubuntu kernel team mailing
list: kernel-t...@lists.ubuntu.com
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default I/O scheduler should be change from CFQ to deadline
https://bugs.launchpad.net/bugs/631871
You received this bug notification because you are a member of
I also think that the elevators should be benchmarked individually under
a range of situations and pick the best one for the general user.
Maybe the guys over Phoronix can help us with that. They are da best
benchmarking stuff.
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default I/O scheduler should be change from CFQ to deadline
i am testing as a general user
the testing i am doing is using the desktop app's / programs
- like open many firefox tabs and windows
(use www.hulu.com with flash)
- all the games that come default
- all of openoffice
- video editor
- music
** Changed in: ubuntu
Importance: Undecided = Wishlist
** Changed in: ubuntu
Status: Won't Fix = Opinion
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default I/O scheduler should be change from CFQ to deadline
https://bugs.launchpad.net/bugs/631871
You received this bug notification because you are a member of Ubuntu
Bugs,
i am testing as a general user
You're testing as what you consider a general user. In my daily
activities I compile numerous packages, listen to music, and a lot of
other things. Ubuntu covers a very wide audience and the best overall
makes the most sense. You tested also only on a single
deadline I/O scheduler is good with both
SSD (solid-state-drives) and HDD (Hard disk drive)
Source:
http://tombuntu.com/index.php/2008/09/04/four-tweaks-for-using-linux-
with-solid-state-drives/
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