On Mon, 12 Jan 2004 11:39:59 -0800 Brion Vibber brion@pobox.com wrote:
Well, went ahead and turned on interrupt unmasking and 32-bit io. The numbers in vmstat don't look too much different yet, but we'll see.
-- brion vibber (brion @ pobox.com)
On my IBM 80 Go, 7200 trs/mn
Before : IO_support = 0 (default 16-bit)
hdparm -t /dev/hdd /dev/hdd: Timing buffered disk reads: 82 MB in 3.05 seconds = 26.89 MB/sec
After : IO_support = 1 (32-bit)
hdparm -t /dev/hdd /dev/hdd: Timing buffered disk reads: 74 MB in 3.03 seconds = 24.42 MB/sec
No changes seen....
Shaihulud