lkml.org 
[lkml]   [2002]   [Aug]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: VM changes added to performance patches for 2.4.19
Date
Hi Bill,

> ...
> against my current production kernel, 2.4.19-ac4. Machine in Athlon
> 1400MHz, 1GB RAM, 20+30GB WD disks.
> ...
> Then I did my nightly backup of a scanned documentation project, making a
> CD image from the scans, currently ~570MB. I was on ck3-aa, and I said
> "self, that seemed pretty fast!" So I rebooted cold and tried the mkisofs
> with both kernels, twice each.

> 2.4.19-ac4 2.4.19-ck3-aa
> mkisofs 570MB 2:05 1:14


with WOLK v3.6 and only ONE harddisk drive:

root@codeman:[/] # du -skh /home
605M /home
root@codeman:[/] # find /home|wc -l
7384
root@codeman:[/] # time mkisofs -o /delme.iso -allow-multidot -iso-level 3 -J
-max-iso9660-filenames -U -R /home
...

real 1m12.872s
user 0m1.840s
sys 0m10.800s


with one big file:

root@codeman:[/] # du -skh /home/onebigfile.delme
620M /home
root@codeman:[/] # time mkisofs -o /delme.iso -allow-multidot -iso-level 3 -J
-max-iso9660-filenames -U -R /home/onebigfile.delme
...

real 0m35.676s
user 0m1.180s
sys 0m10.740s

:-)

Anyway, I also tested the patchset from Con, both, with -aa VM and -rmap VM
and I must say, -rmap is much slower than -aa VM.


Testmashine: Celeron 800MHz
256MB RAM
1x Seagate 30GB running in UDMA4 (ATA66) mode
Filesystem: ext3, data=ordered

I think with your mashine this could be a bit faster also ;)

--
Kind regards
Marc-Christian Petersen

http://sourceforge.net/projects/wolk

PGP/GnuPG Key: 1024D/569DE2E3DB441A16
Fingerprint: 3469 0CF8 CA7E 0042 7824 080A 569D E2E3 DB44 1A16
Key available at www.keyserver.net. Encrypted e-mail preferred.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:28    [W:0.022 / U:4.400 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site