Date: Tue, 19 Oct 2004 00:06:12 -0400 (EDT) From: "Mike Jakubik" <mikej@rogers.com> To: Tommi =?iso-8859-1?Q?L=E4tti?= <sty@iki.fi> Cc: freebsd-current@freebsd.org Subject: Re: FreeBSD 5.3b7and poor ata performance Message-ID: <3818.192.168.0.188.1098158772.squirrel@192.168.0.188> In-Reply-To: <41747701.9070001@iki.fi> References: <20041015190638.C5A0E5D04@ptavv.es.net> <41715E7F.7060509@ng.fadesa.es> <20041018100045.f8koww0skcco0woo@www.sweetdreamsracing.biz> <4173D66F.6010200@DeepCore.dk> <17120aa104101808381cc59152@mail.gmail.com> <c2d45d6e04101808447d4827be@mail.gmail.com> <41747701.9070001@iki.fi>
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Tommi Lätti said:
> Claudiu Dragalina-Paraipan wrote:
>> This might be a bit away from the main interest of the thread:
>> anyone has done any test in 5.2.1 ?
>
> well, here's one from a production machine. There were disk writes
> during the test, so one can assume it performs even better on idle
> machine:
>
> # atacontrol list
> ATA channel 1:
> Master: ad2 <MAXTOR 6L040J2/A93.0500> ATA/ATAPI rev 5
> Slave: no device present
>
> # dd if=/dev/ad2 of=/dev/null bs=1024k count=1024
> 1024+0 records in
> 1024+0 records out
> 1073741824 bytes transferred in 25.935189 secs (41400964 bytes/sec)
>
> The hard-drive is an old 40G Maxtor. Propably 7200RPM.
For measure, here are some results from my machine:
CPU: AMD Athlon(tm) Processor (1410.21-MHz 686-class CPU)
acpi0: <ASUS A7V-133> on motherboard
atapci0: <VIA 82C686B UDMA100 controller> port
0xb800-0xb80f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 4.1 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
atapci1: <Promise PDC20265 UDMA100 controller> port
0x7000-0x703f,0x7400-0x7403,0x7800-0x7807,0x8000-0x8003,0x8400-0x8407 mem
0xe1000000-0xe101ffff irq 10 at device 17.0 on pci0
ata2: channel #0 on atapci1
ata3: channel #1 on atapci1
ad0: 78167MB <Maxtor 6Y080P0/YAR41BW0> [158816/16/63] at ata0-master UDMA100
ad2: 156334MB <Maxtor 4G160J8/GAK819K0> [317632/16/63] at ata1-master UDMA100
ad4: 239372MB <Maxtor 7Y250P0/YAR41BW0> [486344/16/63] at ata2-master UDMA100
ad6: 76345MB <MAXTOR 6L080L4/A93.0500> [155114/16/63] at ata3-master UDMA100
FreeBSD fbsd.wettoast.net 6.0-CURRENT FreeBSD 6.0-CURRENT #0: Mon Oct 18
22:57:00 EDT 2004 root@fbsd.wettoast.net:/usr/obj/usr/src/sys/DP i386
root@fbsd:~# atacontrol list
ATA channel 0:
Master: ad0 <Maxtor 6Y080P0/YAR41BW0> ATA/ATAPI revision 7
Slave: no device present
ATA channel 1:
Master: ad2 <Maxtor 4G160J8/GAK819K0> ATA/ATAPI revision 6
Slave: no device present
ATA channel 2:
Master: ad4 <Maxtor 7Y250P0/YAR41BW0> ATA/ATAPI revision 7
Slave: no device present
ATA channel 3:
Master: ad6 <MAXTOR 6L080L4/A93.0500> ATA/ATAPI revision 5
Slave: no device present
root@fbsd:~# dd if=/dev/ad0 of=/dev/null bs=1024k count=1024
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 18.255028 secs (58818963 bytes/sec)
root@fbsd:~# dd if=/dev/ad2 of=/dev/null bs=1024k count=1024
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 29.462440 secs (36444430 bytes/sec)
root@fbsd:~# dd if=/dev/ad4 of=/dev/null bs=1024k count=1024
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 58.360182 secs (18398535 bytes/sec)
root@fbsd:~# dd if=/dev/ad6 of=/dev/null bs=1024k count=1024
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 41.407983 secs (25930793 bytes/sec)
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