Søren Schmidt wrote:
> It seems Miklos Niedermayer wrote:
>
>>I think they are idle (looking at vmstat -i), but i can't be sure.
>>However i have 2 machines here with VIA 82C596 chipset...
>>
>>atapci0: port 0xd800-0xd80f at device 4.1 on pci0
>>ata0: at 0x1f0 irq 14 on atapci0
>>ad0: 28629MB [58168/16/63] at ata0-master UDMA66
>>
>>524288 bytes transferred in 0.025247 secs (20766367 bytes/sec)
>>
>>It's idle (the LED isn't blinking after/before dd and vmstat -i doesn't
>>show any ata0 activity).
>>
>>Even my Intel PIIX4 ATA33 controller with the same disk performs better (a
>>little)...
>>
>
> Hmm, yes that looks somewhat on the low side...
> Well, two things, the older VIA chips are not the best performers, but
> I still think it should be better than that, I'll run some tests here,
> I might have messed up something...
> Are we talking -current or -stable here ?
>
> -Søren
>
I'm also getting around 20MB/sec.
dmesg:
atapci0: port 0xd000-0xd00f at device 7.1
on pci0
ad0: 12416MB [25228/16/63] at ata0-master UDMA66
output:
1+0 records in
1+0 records out
524288 bytes transferred in 0.023098 secs (22698423 bytes/sec)
1+0 records in
1+0 records out
524288 bytes transferred in 0.023082 secs (22714249 bytes/sec)
1+0 records in
1+0 records out
524288 bytes transferred in 0.023048 secs (22747732 bytes/sec)
1+0 records in
1+0 records out
524288 bytes transferred in 0.023087 secs (22709206 bytes/sec)
1+0 records in
1+0 records out
524288 bytes transferred in 0.023094 secs (22702407 bytes/sec)
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