On Thu, 2004-11-25 at 10:48, Peter Teuben wrote: > On Thu, 25 Nov 2004, Ow Mun Heng wrote: > > > Guys, > > > > I've heard that hdparm does not run on scsi drives.(SATA included) > > > > I've tried to use hdparm anyway, and it gave results. But the results > > are seriously _out_of_this_world (for me). > > > > Can anyone validate these? > > try running it successive times. On my SATA i see the disk reads continue > to grow by the amount of the first measurement. I'm also getting an > error message though, ditto for the error message as well. > > Timing buffered disk reads: 156 MB in 3.06 seconds = 50.90 MB/sec > Timing buffered disk reads: 302 MB in 3.01 seconds = 100.45 MB/sec > Timing buffered disk reads: 442 MB in 3.02 seconds = 146.19 MB/sec > .... > as if hdparm remembers the buffer it read the last time.... Despite that, > 51MB/sec is not bad. But your 146.9 sounds like the 3rd measurement :-) The readings are erratic. like yours. Worst case is also 50MB/sec.
