Re: Reiser4 / Reiserfs bonnie++ performance comparison

[Marcel Hilzinger <marcel@hilzinger.hu>]

2004. július 9. 16.59 dátummal Philippe Gramoullé ezt írta:
>  Hello,
>
> Below are results from bonnie++ done on reiser4 and reiserfs.
> Each result is an average of 5 runs.
>
> For Reiser4 i used default mkfs options and -o formatting=extents
> For Reisefs i used default mount options and -o notails
>
> Assuming that default behavior of bonnie++ is to use twice the RAM of the
> server, no reboot was done between consecutive runs
>
> Bonnie++ was run like this : bonnie++ -x 5 -d bonnie
>
> Hardware: Dell PowerEdge 2550 1GHz SMP, 1Go RAM, SCSI 15K RPM U160 Seagate
> Cheetah X15 Disk Software: Debian Sid + 2004.07.02 Reiser4 auto snapshot (
> 2.6.7-mm4 ) .config file available here if interested:
> http://philou.org/linux/reiser4/config-2.6.7-mm4
>
> Biggest regression seems to be in deletes.

You mustn't belive in Benchmarks :-). Try it empirically, and you will see, 
that for big files, Reiser4 is much faster, then ReiserFS was.  Some example

Deleting a 6,8GB DVD iso image (average of 10 tests):
ext3			14,15 sec
reiser3.6	12,67 sec
reiser4		1,23 sec

Deleting 3 GB of MP3 files (4MB average file size, 10 tests):
ext3			11,91 sec
reiser3.6	4,56 sec
reiser4		1,86 sec

Marcel
-- 
Üdvözlettel -- Mit freundlichen Grüssen,
Marcel Hilzinger