On 29 January 2011 22:53, Roman Mamedov <rm@xxxxxxxxxx> wrote:
> On Sat, 29 Jan 2011 22:48:06 +0000
> Mathias BurÃn <mathias.buren@xxxxxxxxx> wrote:
>
>> Hi,
>>
>> I'm wondering if the performance I'm getting is OK or if there's
>> something I can do about it. Also, where the potential bottlenecks
>> are.
>
> How are your disks plugged in? Which controller model(s), which bus.
> But generally, on an Atom 1.6 Ghz those seem like good results.
>
> --
> With respect,
> Roman
>
Hi,
Sorry, of course I should've included that. Here's the info:
~/bin $ sudo ./drivescan.sh
Controller device @ pci0000:00/0000:00:0b.0 [ahci]
SATA controller: nVidia Corporation MCP79 AHCI Controller (rev b1)
host0: /dev/sda ATA Corsair CSSD-F60 {SN: 10326505580009990027}
host1: /dev/sdb ATA WDC WD20EARS-00M {SN: WD-WCAZA1022443}
host2: /dev/sdc ATA WDC WD20EARS-00M {SN: WD-WMAZ20152590}
host3: /dev/sdd ATA WDC WD20EARS-00M {SN: WD-WMAZ20188479}
host4: [Empty]
host5: [Empty]
Controller device @ pci0000:00/0000:00:16.0/0000:05:00.0 [sata_mv]
SCSI storage controller: HighPoint Technologies, Inc. RocketRAID
230x 4 Port SATA-II Controller (rev 02)
host6: [Empty]
host7: /dev/sde ATA SAMSUNG HD204UI {SN: S2HGJ1RZ800964 }
host8: /dev/sdf ATA WDC WD20EARS-00M {SN: WD-WCAZA1000331}
host9: /dev/sdg ATA SAMSUNG HD204UI {SN: S2HGJ1RZ800850 }
It's all SATA 3Gbs. OK, so from what you're saying I should see
significantly better results on a better CPU? The HDDs should be able
to push 80MB/s (read or write), and that should yield at least 5*80 =
400MB/s (-1 for parity) on easy (sequential?) reads.
// Mathias
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
