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- Path: fc.hp.com!tomk
- From: tomk@fc.hp.com (Tom Kennedy)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Zip Drive
- Date: 12 Feb 1996 00:47:49 GMT
- Organization: Hewlett-Packard Fort Collins Site
- Message-ID: <4fm2nl$5aq@fcnews.fc.hp.com>
- References: <9602011041.AA0016s@spikings.demon.co.uk> <DM5I7q.Fv0@actrix.gen.nz> <DMB0JI.1st@aston.ac.uk> <DMEt51.EEL@actrix.gen.nz> <DMIAA0.2I9@aston.ac.uk>
- NNTP-Posting-Host: magnum.fc.hp.com
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-
- Paul Copsey (copseypl@aston.ac.uk) wrote:
- : Colin Palmer (cpalmer@atlantis.actrix.gen.nz) wrote:
-
- : : I did a comprehensive test on my ZIP drive after posting this (I would
- : : have done it before, but I have to reboot to get accurate CPU figures),
- : : and it's worse than I thought, even on an A1200-030/50 you have 0% CPU
- : : time free while accessing the ZIP drive. It also showed than on small
- : : files the ZIP drive wouldn't be much faster than a floppy disk!
-
- : As for the speed, that`s about what I get, but running it on the Blizzard
- : I have ~40-50% processor free.
-
- Processor availability is entirely dependent on the SCSI controller
- you use... not the drive.
-
- Here's my results with DiskSpeed and a A4091:
- ---------------------------------------------------------------
- MKSoft DiskSpeed 4.0 - Copyright ⌐ 1989-91 MKSoft Development
- -------------------------------------------------------------
- CPU: 68040 OS Version: 39.106 Normal Video DMA
- Device: TEST: Buffers: 50
- Comments: DiskSpeed 4.0 - Beta 1
-
- CPU Speed Rating: 3105
-
- Testing directory manipulation speed.
- File Create: 34 files/sec | CPU Available: 75%
- File Open: 41 files/sec | CPU Available: 75%
- Directory Scan: 47 files/sec | CPU Available: 84%
- File Delete: 60 files/sec | CPU Available: 77%
-
- Seek/Read: 1403 seeks/sec | CPU Available: 19%
-
- Testing with a 512 byte buffer. (LONG-aligned, MEMF_FAST)
- Create file: 24296 bytes/sec | CPU Available: 84%
- Write to file: 23772 bytes/sec | CPU Available: 85%
- Read from file: 23959 bytes/sec | CPU Available: 85%
-
- Testing with a 4096 byte buffer. (LONG-aligned, MEMF_FAST)
- Create file: 142562 bytes/sec | CPU Available: 87%
- Write to file: 155615 bytes/sec | CPU Available: 87%
- Read from file: 155595 bytes/sec | CPU Available: 86%
-
- Testing with a 32768 byte buffer. (LONG-aligned, MEMF_FAST)
- Create file: 310017 bytes/sec | CPU Available: 90%
- Write to file: 402435 bytes/sec | CPU Available: 92%
- Read from file: 395630 bytes/sec | CPU Available: 91%
-
- Testing with a 262144 byte buffer. (LONG-aligned, MEMF_FAST)
- Create file: 469063 bytes/sec | CPU Available: 92%
- Write to file: 692337 bytes/sec | CPU Available: 96%
- Read from file: 646471 bytes/sec | CPU Available: 95%
-
- [other tests deleted]
-
- Average CPU Available: 86% | CPU Availability index: 2670
-
-
- Tom Kennedy
-