Re: My disk I/O testing methods for FreeBSD 5.3 ...
From: Sergej Kandyla (paix_at_uts.com.ua)
Date: 02/04/05
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Date: Fri, 04 Feb 2005 13:13:48 +0000 To: freebsd-performance@freebsd.org
My test.
FreeBSD 4.10-RELEASE-p5
CPU: Intel Pentium III (1005.03-MHz 686-class CPU)
real memory = 335458304 (327596K bytes) (PC100)
ad0: 57241MB <ST360021A> [116301/16/63] at ata0-master UDMA100
[13:04:13]paix@sk(~)$ time dd bs=1024 if=/dev/zero of=tstfile count=1048576
1048576+0 records in
1048576+0 records out
1073741824 bytes transferred in 28.167481 secs (38119909 bytes/sec)
real 0m28.236s
user 0m0.785s
sys 0m18.901s
[13:05:13]paix@sk(~)$
Mike Jakubik wrote:
>Nick Pavlica said:
>
>
>>Jeff,
>> One of the tests where I saw a large difference was in DD. I did a
>>quick test on a server that was brought up to RELENG_5 via cvsup on
>>2/2/05.
>>
>>The Test:
>>-bash-2.05b$ time dd bs=1024 if=/dev/zero of=tstfile count=1M
>>1048576+0 records in
>>1048576+0 records out
>>1073741824 bytes transferred in 74.402757 secs (14431479 bytes/sec)
>>
>>real 1m14.498s
>>user 0m0.550s
>>sys 0m8.838s
>>
>>
>
>FYI.
>
># time dd bs=1024 if=/dev/zero of=tstfile count=1M
>1048576+0 records in
>1048576+0 records out
>1073741824 bytes transferred in 22.150709 secs (48474377 bytes/sec)
>
>real 0m22.173s
>user 0m0.501s
>sys 0m13.832s
>
>This is on an old ATA disk.
>
>FreeBSD 6.0-CURRENT #0: Wed Jan 19 21:11:16 EST 2005.
>
>CPU: AMD Athlon(tm) Processor (1410.21-MHz 686-class CPU)
>real memory = 536788992 (511 MB)
>acpi0: <ASUS A7V-133> on motherboard
>
>ad0: 78167MB <Maxtor 6Y080P0/YAR41BW0> [158816/16/63] at ata0-master UDMA100
>
>
>
>
-- wbw, paix _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freebsd.org"
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