On Sat, Jun 02, 2007 at 10:54:51AM -0400, Douglas Allan Tutty wrote: > On Thu, May 31, 2007 at 11:02:06PM -0400, WHIRLYCOTT wrote: > > Etch: (output of hdparm) > > > > /dev/sda: > > Timing cached reads: 1588 MB in 2.00 seconds = 794.41 MB/sec > > Timing buffered disk reads: 176 MB in 3.03 seconds = 58.15 MB/sec > > > CentOS: (output of hdparm) > > > > /dev/sda: > > Timing cached reads: 4480 MB in 2.00 seconds = 2242.86 MB/sec > > Timing buffered disk reads: 176 MB in 3.03 seconds = 58.16 MB/sec > > The buffered disk reads are the same since that's the transfer rate from > the drive's buffer. The problem is the cache reads which is the time > from you OS's cache. > I thought that the cached reads were from the disk drives onboard cache. Regards, -Roberto -- Roberto C. Sánchez http://people.connexer.com/~roberto http://www.connexer.com
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