On September 18, 2004 1:57 am, Ben Brown wrote: > > /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 = 256 (on) > > geometry = 16383/255/63, sectors = 78140160, start = 0 > > Might want to turn on 32-bit I/O support. That would speed things up: specifically, these items apparently have no effect on my throughput: /dev/hda: multcount = tried 1 and 16, no change IO_support = tried 0 (default 16-bit) and 1 (32-bit), no change unmaskirq = tried 0 and 1, no change I did note a small change between the default setting which gave ~13.5MB/sec for buffered disk reads and setting xfermode to 67 (UltraDMA mode3) or 66 (UltraDMA mode2), both of which brought the rate consistently down to ~10 MB/sec. This went back to 13.5 when I used xfermode to 68 (UltraDMA mode4). -- Trevor Smith // trevor@xxxxxxxxxxxxxx
