[Bug 381300] Re: elevator=cfq (default) cause starvation

[DLHDavidLH]

i think that the default I/O scheduler
 should be change from  CFQ  to  deadline

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i have test CFQ and deadline  I/O scheduler

on a DELL Latitude 120L with 1GB of RAM and 40GB hard drive

with EXT4 filesystem and GPT with both I/O schedulers

and Found that deadline  I/O scheduler is the fastest

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also test both I/O schedulers on two other computers (total of 3
computers)

the  deadline  I/O scheduler  preformed the best/fastest

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also went deadline  I/O scheduler is put in Grub ( etc/default/grub OR grub.cfg )
the boot speed is increased and desktop speed

OR  went deadline  I/O scheduler is put in rc.local  ( etc/rc.local )
the desktop speed is increased only


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http://en.wikipedia.org/wiki/Deadline_scheduler
http://en.wikipedia.org/wiki/GUID_Partition_Table
http://en.wikipedia.org/wiki/Ext4
http://itezer.com/blog/ubuntu-linux/125-Four_Tweaks_for_Using_Ubuntu_with_SSD.html


http://en.wikipedia.org/wiki/CFQ

-- 
elevator=cfq (default) cause starvation
https://bugs.launchpad.net/bugs/381300
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