[mythtv] FileSystem to use for Myth (was Re:Channel change speed)

Renchi Raju renchi at pooh.tam.uiuc.edu
Fri Sep 12 14:24:30 EDT 2003


i just did a small benchmark on the filesystems on my machine using
bonnie++ (for reading and writing 1G files). the results are attached with
this mail.

these tests were run with as follows:
bonnie++ -s 1g -n 0 -f

renchi

Disclaimer: this is a very unscientific test. do your own benchmarks
and form your own opinion if you don't agree with the results or the
methodology.

> Message: 18
> Date: Fri, 12 Sep 2003 11:56:55 -0400
> From: Will Dormann
> Subject: RE: [mythtv] Re:Channel change speed
>
> I just switched my store from ext3 to reiserfs, and I
> like the change!
> Channel changing time is significantly faster, and
> deleting recordings
> is
> much faster too.
>
> Maybe this should be put in the documentation
> somewhere.  I remember
> researching which filesystem to use at the time I was
> setting up my
> MythTV
> machine, and I couldn't find any definitive answer as
> to which would be
> better in the case of a PVR.
>
-------------- next part --------------
bonnie++ -s 1g -f -n 0

xfs: (Default)
======================================================================
Version  1.03       ------Sequential Output------ --Sequential Input---Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block----Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
pooh             1G           46718  25 16076  13           33695  20 169.2   0
pooh,1G,,,46718,25,16076,13,,,33695,20,169.2,0,,,,,,,,,,,,,

jfs: (Default)
======================================================================
Version  1.03       ------Sequential Output------ --Sequential Input-
--Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
pooh             1G           34290  15 12188   7           21121  10 203.0   0
pooh,1G,,,34290,15,12188,7,,,21121,10,203.0,0,,,,,,,,,,,,,

reiserfs:
======================================================================

Default options:
----------------------------------------------------------------------
Version  1.03       ------Sequential Output------ --Sequential Input---Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block----Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
pooh             1G           29108  23  8589   6           19001   9 192.4   0
pooh,1G,,,29108,23,8589,6,,,19001,9,192.4,0,,,,,,,,,

With noatime,notail:
----------------------------------------------------------------------
Version  1.03       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
pooh             1G           29234  21 10656   7           23012  12 203.4   0
pooh,1G,,,29234,21,10656,7,,,23012,12,203.4,0,,,,,,,,,,,,,


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