Subject: Re: horrible raidframe performance on 2.0-RC5
To: None <firstname.lastname@example.org>
From: Egervary Gergely <email@example.com>
Date: 12/06/2004 18:30:37
> Another data point - I'm running 2.0_RC4 from October 8, and it's
> working just dandy here (XP2000+, 512MB ram, 4 RF mirrors on a pair
> of 120G PATA disks).
Thank you for all your replies. The problem is somewhat strange,
and I cannot use the proliant box for testing now - it's running
as a production server w/1.6.2 for 3 days flawlessly.
(okay, it's just a workaround for now)
I _really_ want to reproduce this problem on my desktop box, but
it works good with 2.5-RC5. Hmmm...
Anyway, if you are running raidframe with RAID level 5, could you please
test the performance?
RAID component tests: (Seagate 120GB ATA 7200RPM on ICH5)
dd if=/dev/rsd0d of=/dev/null bs=512 count=512k shows ~4 MBytes/sec
dd if=/dev/rsd0d of=/dev/null bs=32k count=8k shows ~59 MBytes/sec (very
RAID overall tests: (raid 5 with 3 similar disks as above)
dd if=/dev/rraid0d of=/dev/null bs=512 count=512k shows ~2.3 MBytes/sec
dd if=/dev/rraid0d of=/dev/null bs=32k count=8k shows ~25 MBytes/sec
It should be faster, isn't it?
sectPerSU is set to 128
(makes no sensible difference with lower or higher value)