Hello Joris, Have you solve the problem? If so, how? I think I hit the similiar problem as yours, but instead of ICH7, I hit the problem with ICH9. 8 x Seagate 500GB harddisks are connected to ICH9 and sil24 PCI-E controller, transfer rate of disks connected to ICH9 are limited at around 47MB/s, while disks connected to sil24 reach 104MB/s. All harddisks are NCQ enabled, so I don't think NCQ is the problem. please cc me if possible. Regards, Kyle > Hello List, > Odd problem on my machines: the sata disks appear to be a lot slower > when used via ata_piix vs the ahci driver. > * dd if=/dev/sda of=/dev/null runs at roughly 50MB/s under ahci a > steady 100MB/s under ata_piix, same for hdparm > * bonnie++ -d /home/bonnietest -s 16G -r 8192 -u root returns: -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
