-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Rich Johnson wrote: > > On Jul 8, 2006, at 7:46 PM, Ron Johnson wrote: > >> >>> and hdparm reports: >>> >>> /dev/hda: >>> multcount = 16 (on) >>> IO_support = 0 (default 16-bit) >>> unmaskirq = 0 (off) >>> using_dma = 1 (on) >>> keepsettings = 0 (off) >>> readonly = 0 (off) >>> readahead = 8 (on) >>> geometry = 2434/255/63, sectors = 39102336, start = 0 >> >> That might be part of your trouble. >> >> /dev/hda: >> multcount = 0 (off) >> IO_support = 1 (32-bit) <<<<<<<< >> unmaskirq = 1 (on) <<<<<<<< >> using_dma = 1 (on) >> keepsettings = 0 (off) >> readonly = 0 (off) >> readahead = 256 (on) >> geometry = 30401/255/63, sectors = 488397168, start = 0 > > > Hmmm...I'm in serious need of some education here. (my main > experience is with PowerPC) Are these settings part of the BIOS? > hdparm manipulations don't seem to be persistent across reboots.
No. This is driven by parameters defined in /etc/hdparm.conf and /etc/rcS.d/S07hdparm. > I also notice that there's a big discrepancy in the readahead. > What are the tradeoffs of bumping this number? It just preloads > the disk controller's cache, right? Good question. - -- Ron Johnson, Jr. Jefferson LA USA Is "common sense" really valid? For example, it is "common sense" to white-power racists that whites are superior to blacks, and that those with brown skins are mud people. However, that "common sense" is obviously wrong. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEsGj5S9HxQb37XmcRAmaLAJ9EvskKBwQPl24ZF61JROJs/zWmjgCcCGO/ goClbq3CU4W0tyLsK0Yvws4= =hsR6 -----END PGP SIGNATURE----- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
