Hi folks,
just performed this test on my 133 MHz 5x86, 6 GB HD, OpenDos 7.1, NWcache:
10 sec create/copy, total shows sometimes 10, sometimes 11 secs, I guess
must be about 0.5 secs to delete.
Regards Joerg
On Wed, 12 Jul 2000 22:10:58 -0500, Clarence Verge wrote:
> Hello good folks;
> I think I have come across an unmentioned insect inside the DOS 6x series
> having to do with recalibrating the HD before every file access.
> This causes the HD to sound like a machinegun when deleting a large number
> of files or deleting directory chains. It also causes SEVERELY crippled
> Hard disk performance that I thought in my case was due to the HD itself.
> I've been wrong before, and I may be wrong here, but this is the evidence:
> I have a test program that creates a lot (228) of files for HD/RD cache
> and buffer performance tests. Whether the test means anything is quite
> irrelevant here, because I'm only going to be complaining about the time
> it takes to delete the files.
> 1) A P166 using Win 95 16 sec create/copy, 16 total = damn fast delete.
> 2) My '486 using DOS 3.30. 35 sec create/copy, 36 total = 1 sec delete
> 3) My '386 HP + DOS 3.30 95 sec create/copy, 97 total = 2 sec delete
> 4) Same HP using DOS 5.0 81 sec create/copy, 83 total = 2 sec delete
> 5) Same HP using DOS 6.21 81 sec create/copy, 86 total = 5 sec delete *
> 6) My P90 using DOS 6.2? 30 sec create/copy, 41 total = 11 sec delete ***
> 7) A 66Mhz'486 + DOS 6.22 65 sec create/copy, 86 total = 21 sec delete ****
> 8) Pete's 40Mhz'486 DOS 6.22 82 sec create/copy 90 total = 8 sec delete **
> This last is to be confirmed.
> Obviously all different disk drives. In my case, I tried BOTH PC-Cache
> and Smartdrv, and while PC-Cache was a big winner, it didn't reduce the
> time required to delete those files.
> Looking for volunteers to conduct tests. You need 2Mb free disk space for
> one or two minutes. Try the attached please.
> - Clarence Verge
> --
> - Help stamp out FATWARE. As a start visit: http://home.arachne.cz/
> --
> [Attached file: SPEEDCHK.ZIP]
-- This mail was written by user of Arachne, the Ultimate Internet Client
-- Arachne V1.60;b1, NON-COMMERCIAL copy, http://arachne.cz/
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