Hi, Just for information, may be it is already well known: I found that by default all ATA CD- and DVD-ROMS have PIO4 mode (at least on my machines, 5.1R). Changing mode to at least UDMA33 (atacontrol) improves performance dramatically - not just transfer speed increased, but (and this is more important) interrupt time reduced (according to systat -vmstat: from 40% to 0.8%).
Regards, Sergey. _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
