reiserfs

Ashrack · 07-04-2006, 09:39 AM

Im intersted to know what yields better perfomance:
notail or tail w/ REISERFS.

Am using GRUB and UBUNTU DAPPER

IBall · 07-05-2006, 02:00 AM

Can you give us more details - I am not sure exactly what you are asking.

--Ian

hal8000b · 07-05-2006, 03:45 AM

Quote:

Originally Posted by Ashrack

Im intersted to know what yields better perfomance:
notail or tail w/ REISERFS.

Am using GRUB and UBUNTU DAPPER

Personally I use noatime options in my /etc/fstab with a reiserfs

cat /etc/fstab
/dev/hda7 / reiserfs noatime,acl,user_xattr 1 1
/dev/hda5 /boot ext2 acl,user_xattr 1 2
/dev/hda8 /home reiserfs noatime,acl,user_xattr 1 2
/dev/hda6 swap swap defaults 0 0

As for performance, it is difficult to measure but if you want a faster file system consider tuning your hard drive with hdparm. Here's one link from google

http://www.linuxdevcenter.com/pub/a/...29/hdparm.html

HTH

Ashrack · 07-05-2006, 05:47 AM

Quote:

Originally Posted by IBall

Can you give us more details - I am not sure exactly what you are asking.
--Ian

When mounting REISERFS partition U are presented with different option on how to mount it. And one of them is the NOTAIL option.
But I'm wondering would I gain better performance with the NOTAIL option or without it??

jlliagre · 07-05-2006, 06:17 AM

Reiserfs notail option is advertised to increase performance at the expense of storage efficiency.

As to know if you'll gain performance with it, you are the only able to provide an answer, by doing a benchmarck with your own data and processes.

Ashrack · 07-05-2006, 07:14 AM

how would I do a benchmark

jlliagre · 07-05-2006, 07:36 AM

By measuring with a timer how long does it takes to complete some operation with and without the option, and comparing the results.

Ashrack · 08-04-2006, 07:35 AM

how would I go about doing that??

Jongi · 08-04-2006, 08:35 AM

1. Boot with notail enabled
2. Take stopwatch.
3. At same time, start stopwatch and start running a process
4. Time how long process takes.
5. Stop stopwatch when process finishes.
6. Note how long process took.
7. Repeat 2 - 6 with notail option disabled.
8. Compare times.

Ashrack · 08-04-2006, 10:17 AM

crap! I thought something better existed for timing the performance

ErrorBound · 08-04-2006, 12:13 PM

Quote:

Originally Posted by Ashrack

crap! I thought something better existed for timing the performance

Write one yourself. It's not hard.

jlliagre · 08-04-2006, 02:47 PM

Quote:

Originally Posted by Ashrack

crap! I thought something better existed for timing the performance

If you don't like the stopwatch option, have a look at the time command (man time).