2010/12/27 Piotr Hosowicz<piotr@xxxxxxxxxxxx>:On 27.12.2010 16:13, Piotr Hosowicz wrote:
On 27.12.2010 16:08, Sedat Dilek wrote:
2010/12/27 Piotr Hosowicz<piotr@xxxxxxxxxxxx>:
On 27.12.2010 15:48, Sedat Dilek wrote:
2010/12/27 Piotr Hosowicz<piotr@xxxxxxxxxxxx>:
On 27.12.2010 07:04, Stephen Rothwell wrote:
Hello,
I noticed that after first reboot with this kernel that my MP3
collection
in
mocp layed on Ext4 fs opens painfully slow. It is not my mistake,
because
I
always do it the same way, new kernel, then music on. The problem
is not
present in rc7-git4. I could measure it in some way (timing ls -la
in tht
dir?) if somebody needs it.
Regards,
Piotr Hosowicz
You tried mblk_io_submit mount-option for that partition?
No, I do not use it, I do not even know what it is. My options are:
/dev/sda2 on / type ext4 (rw,errors=remount-ro)
Have a closer look at "ext4: Turn off multiple page-io submission by
default"
I tried to Google for mblk_io_submit but I didn't find anything helpful.
Could you tell me how should I add this option in fstab and what will be
its effect?
As far as I understand that option regards writing, not reading. The
symptoms I described occured while reading only.
That's the only performance issue I am aware of in ext4 in recent time.
Why don't you try it and present some numbers in transfer ratio (write, read)?