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> I ran this utility. I do not trust its results.
Yeah, I think they are deceptive when you are running NT with NTFS and
disk caching. I remembered the old Wintune program I used to run with
Win 95. It tests disk performance along with tons of other stuff.
Windows Mag is out of business but I tracked down the latest version the
program at
http://www.zdnet.com/downloads/stories/info/0,10615,18831,00.html
The summary uncached disk speed from Wintune sounds dog slow for my
system, even worse than it did with that other test, but the performance
with caching is pretty decent, like 100 times faster. The uncached
read/write performance is interesting, I guess, but what I really care
about is the real world performance with caching.
The only bad thing about the latest version of the program is the
"advice" part was moved onto a web page link that doesn't work any more
since WinMag went out of business. But you can still get all the
performance numbers for 95, 98, NT, 2K from the program itself.
Disk results for a medium-slow NT system with a bunch of other apps
running....
Summary
264 cached disk MB/s
2.4 uncached disk MB/s
Cached Disk, 128 blocks
Open file time (s): 0.00095
Sequential write time (s): 0.0048
Sequential read time (s): 0.01
Random write time (s): 0.00033
Random read time (s): 0.00081
Close file time (s): 0.0011
Open file bytes: 1024
Sequential write bytes: 524288
Sequential read bytes: 4194304
Random write bytes: 65536
Random read bytes: 262144
Close file bytes: 1024
Open file MB/s: 1
Sequential write MB/s: 104
Sequential read MB/s: 397
Random write MB/s: 187
Random read MB/s: 310
Close file MB/s: 0.91
Uncached Disk, 2048 blocks
Open file time (s): 0.0011
Sequential write time (s): 0.81
Sequential read time (s): 0.8
Random write time (s): 2.4
Random read time (s): 2.3
Close file time (s): 0.0012
Open file bytes: 1024
Sequential write bytes: 8388608
Sequential read bytes: 8388608
Random write bytes: 1048576
Random read bytes: 1048576
Close file bytes: 1024
Open file MB/s: 0.92
Sequential write MB/s: 9.9
Sequential read MB/s: 10
Random write MB/s: 0.42
Random read MB/s: 0.43
Close file MB/s: 0.85
--
Dennis
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