aduncan@rhea.trl.oz.au (Allan Duncan) (06/05/90)
Someone was collecting performance figures on hard drive controllers, so hehre
is one for the collection.
These are the results of DiskPerf run on a SCSI board from SKI Peripherals
Division of United Computer Group. The model is "SKIstor 2000", a SCSI Host
Adapter and Dual Serial Port. The board is not DMA. The drive used is a
Rodime RO3058T, 45 Mbyte.
PAL screen size
Professional Page, with (presumably) 4 bit planes
File create/delete: create 9 files/sec, delete 26 files/sec
Directory scan: 42 entries/sec
Seek/read test: 66 seek/reads per second
r/w speed:
buf, bytes rd, byte/sec wr, byte/sec
512 46431 27165
4096 201004 101968
8192 296766 145635
32768 459230 191812
131072 524288 233016
524288 551882 247695
Standard 2 bit plane Workbench window
File create/delete: create 13 files/sec, delete 47 files/sec
Directory scan: 86 entries/sec
Seek/read test: 139 seek/reads per second
r/w speed:
buf, bytes rd, byte/sec wr, byte/sec
512 90135 28741
4096 306900 154202
8192 446202 216946
32768 669303 268865
131072 655360 338250
524288 669303 365782
Screen blanked by PopCLI
File create/delete: create 13 files/sec, delete 47 files/sec
Directory scan: 87 entries/sec
Seek/read test: 139 seek/reads per second
r/w speed:
buf, bytes rd, byte/sec wr, byte/sec
512 90264 28728
4096 305410 155344
8192 439961 217697
32768 676500 271183
131072 655360 340078
524288 676500 363667
Allan Duncan ACSnet a.duncan@trl.oz
ARPA a.duncan%trl.oz.au@uunet.uu.net
UUCP {uunet,hplabs,ukc}!munnari!trl.oz.au!a.duncan
Telecom Research Labs, PO Box 249, Clayton, Victoria, 3168, Australia.