On Thu, Aug 21, 2003 at 02:39:44PM -0400, Leo Bicknell wrote: > fd0 is block buffered. Try: > > dd bs=18k of=/dev/rfd0c if=memtest86-2.9/precomp.bin > > I forget why, but 18k maximizes performance on (some?) floppies.
Because a 1440 kbyte floppy has 80 tracks, and it's double sided. Thus, 9kbyte per side, both sides get done at once == 18k per track. So, you schedule a full track of data to be written at one go, the head seeks, and you start the next transfer to the device. -Kurt _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
