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.