Hello My Gygabyte motherboard (SB700 with AMD4400+) has poor SATA performance. Any disk I/O leads to high system CPU percentage. And the AHCI interrupt is about 1000/s even for low disk usage.
Using hdparm, I've found that all my sata disks have multcount set to 0: $ sudo hdparm /dev/sdb /dev/sdb: multcount = 0 (off) IO_support = 0 (default) readonly = 0 (off) readahead = 256 (on) geometry = 38913/255/63, sectors = 625142448, start = 0 As far as I can tell, I should get better performance by setting mulcount to 8 or 16. (ie. hdparm -m 16 /dev/sdb) But, hdparm warns that -m is a dangerous option. What is your opinion on this ? Is this really dangerous ? Or is it only when playing with too high mulcount value ? All the best -- Dominique Dumont "Delivering successful solutions requires giving people what they need, not what they want." Kurt Bittner irc: domidumont at irc.freenode.net ddumont at irc.debian.org -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org