| From: Gregory Gulik <[EMAIL PROTECTED]> | Yes, this laptop has a PATA hard drive and hdparm shows the following:
Looks good. | # hdparm -T /dev/hda | /dev/hda: | Timing cached reads: 1868 MB in 2.00 seconds = 934.87 MB/sec That seems like a very reasonable time. My desktop (PATA, HP nForce-based AMD 64, a couple of years old) gets 1002.12 MB/sec. My newer HP desktop, with SATA, gets 1288.27 MB/sec. I would worry if it were an order of magnitude slower. | I don't know how useful this timing test is because my Sony with a SATA hard | drive tested about the same. In theory, this test should maximize the difference between SATA and PATA. It *only* tests the buffer/cache of the drive and the channel bandwidth. SATA should come out faster, I think. But the difference should not matter. For real performance, the characteristics that matter are the disk-to-buffer bandwidth, the rotational latency, and the seek time. I think that hdparm -t, not -T, would be more usful. On my older desktop, I get 55.26 MB/sec (I get only 36.94 MB/sec on the newer one!). Note: this really only tests sequential reading (from the actual disk, not the buffer). You need another test program to deal with access time issues. Or you could read the spec sheets. _______________________________________________ LinuxR3000 mailing list [email protected] http://lists.pcxperience.com/cgi-bin/mailman/listinfo/linuxr3000 Wiki at http://prinsig.se/weekee/
