kenneth johansson wrote: > I changed my bios setting for SATA from IDE to AHCI. > > This resulted in some "interesting" read throughput. > > plots can be found at http://kenjo.org/~ken/sata/ > The plots was done on a live disk so some noise is expected but in the > ahci mode the throughput get stuck at 17 MB way to much. It's probably not an ahci problem but more of NCQ implementation problem in the drive firmware. Please report the result of 'hdparm -I /dev/sdX' and try adjust queue depth and see what happens. http://linux-ata.org/faq.html -- tejun - 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
