How do I test disk performance in Freebsd60 ?

2006-03-22 Thread Halid Faith
I use FreeBSD60 on Dell1600 SC ( 2gbyte Ram 4 CPU )
amr0: LSILogic MegaRAID 1.51 mem 0xfcc0-0xfcc0 irq 21 at device
2.0 on pci2
amr0: LSILogic PERC 4/SC Firmware 351X, BIOS 1.10, 64MB RAM

I have 3 scsi disks that each about 70 Gbyte based RAID5. That is Total
capacity nearly 140 Gbyte.


I want to test disk / raid card.

I tried below command 10 times while I 'm root
date  dd if=/dev/zero of=deleteme.now bs=64k count=300  rm deleteme.now
 date

1 - 19660800 bytes transferred in 3.420916 secs (5747232 bytes/sec)
2 - 19660800 bytes transferred in 3.318186 secs (5925165 bytes/sec)
3 - 19660800 bytes transferred in 1.325308 secs (14834893 bytes/sec)
4 - 19660800 bytes transferred in 1.475633 secs (13323637 bytes/sec)
5 - 19660800 bytes transferred in 1.458992 secs (13475605 bytes/sec)
6 - 19660800 bytes transferred in 1.373914 secs (14310066 bytes/sec)
7 - 19660800 bytes transferred in 1.597467 secs (19307485 bytes/sec)
8 - 19660800 bytes transferred in 1.308806 secs (15021937 bytes/sec)
9 - 19660800 bytes transferred in 1.324031 secs (14849201 bytes/sec)
10- 19660800 bytes transferred in 1.438717 secs (13665510 bytes/sec)

As you see the values of  bytes/sec is not stable  very changeable.
I wonder Do disks or the raid card work properly ?

Thanks





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Re: How do I test disk performance in Freebsd60 ?

2006-03-22 Thread Norberto Meijome
On Wed, 22 Mar 2006 13:32:29 +0200
Halid Faith [EMAIL PROTECTED] wrote:

 I use FreeBSD60 on Dell1600 SC ( 2gbyte Ram 4 CPU )
 amr0: LSILogic MegaRAID 1.51 mem 0xfcc0-0xfcc0 irq 21 at
 device 2.0 on pci2
 amr0: LSILogic PERC 4/SC Firmware 351X, BIOS 1.10, 64MB RAM
 
 I have 3 scsi disks that each about 70 Gbyte based RAID5. That is
 Total capacity nearly 140 Gbyte.
 
 
 I want to test disk /

cd /usr/ports ; make search info=performance

should give you some tools (bonnie, from memory)

 raid card.

... other than setup raid, yank the cable in one/several of the
drives and see what happens? 

Beto
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