> -----Message d'origine----- > De : Alan Cox [mailto:alan@xxxxxxxxxxxxxxxxxxx] > Envoyé : 17 mai 2007 13:27 > > > [root@kayak /root]# hdparm -T -t /dev/hda > > > > /dev/hda: > > Timing cached reads: 4816 MB in 2.00 seconds = 2408.44 MB/sec > > Timing buffered disk reads: 12 MB in 3.23 seconds = 3.72 MB/sec > > This is using PIO. How recent is your kernel - you may need a > newer kernel for the ICH8 if you only get PIO with the old IDE layer. > Just upgraded to 2.6.21.1 and I am now capable of using ahci instead of ata_piix. This makes the disks even faster: OLD-IDE ------- [root@kayak /root]# hdparm -T -t /dev/hda /dev/hda: Timing cached reads: 4816 MB in 2.00 seconds = 2408.44 MB/sec Timing buffered disk reads: 12 MB in 3.23 seconds = 3.72 MB/sec Libata ata_piix --------------- [root@kayak /root]# hdparm -T -t /dev/sda /dev/sda: Timing cached reads: 4960 MB in 2.00 seconds = 2480.38 MB/sec Timing buffered disk reads: 168 MB in 3.00 seconds = 55.94 MB/sec Liata AHCI ---------- [root@kayak /root]# hdparm -T -t /dev/sda /dev/sda: Timing cached reads: 5036 MB in 2.00 seconds = 2518.96 MB/sec Timing buffered disk reads: 178 MB in 3.03 seconds = 58.73 MB/sec Wew... This makes it a worthy upgrade! Thnx. - vin - 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
