Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!lavaca.uh.edu!nntppost
From: jet@karazm.math.uh.edu (J. Eric Townsend)
Newsgroups: comp.sys.amiga.tech
Subject: DiskPerf for GVP Series II scsi + RAM
Message-ID: <1990Nov18.191622.13242@lavaca.uh.edu>
Date: 18 Nov 90 19:16:22 GMT
Sender: nntppost@lavaca.uh.edu (NNTP Posting Service)
Organization: University of Houston -- Department of Mathematics
Lines: 50



I haven't seen this yet, so I thought I'd do/post it.

System: Amiga 2000, rev 4.3, FatAgnus, 1Mb motherboard
Card: GVP Series II SCSI+ram, 4Mb 80ns RAM
Drive: 40Mb Quantum

Results (three runs, all I changed was addbuffers):

0.
;no added buffers
File create/delete:    create 16 files/sec, delete 33 files/sec
Directory scan:	    96 entries/sec
Seek/read test:	    104 seek/reads per second
r/w speed:	    buf 512 bytes, rd 56375 byte/sec, wr 28378 byte/sec
r/w speed:	    buf 4096 bytes, rd 181833 byte/sec, wr 126843 byte/sec
r/w speed:	    buf 8192 bytes, rd 280868 byte/sec, wr 174278 byte/sec
r/w speed:	    buf 32768 bytes, rd 388361 byte/sec, wr 214725 byte/sec
r/w speed:	    buf 131072 bytes, rd 487709 byte/sec, wr 288598 byte/sec
r/w speed:	    buf 524288 bytes, rd 507375 byte/sec, wr 317750 byte/sec

1.
;addbuffers dh0: 20
File create/delete:    create 15 files/sec, delete 33 files/sec
Directory scan:	    96 entries/sec
Seek/read test:	    72 seek/reads per second
r/w speed:	    buf 512 bytes, rd 50778 byte/sec, wr 25880 byte/sec
r/w speed:	    buf 4096 bytes, rd 149440 byte/sec, wr 86778 byte/sec
r/w speed:	    buf 8192 bytes, rd 201649 byte/sec, wr 116941 byte/sec
r/w speed:	    buf 32768 bytes, rd 322638 byte/sec, wr 183960 byte/sec
r/w speed:	    buf 131072 bytes, rd 466033 byte/sec, wr 272357 byte/sec
r/w speed:	    buf 524288 bytes, rd 537731 byte/sec, wr 311458 byte/sec

2.
;addbuffers dh0: 40
File create/delete:    create 15 files/sec, delete 33 files/sec
Directory scan:	    96 entries/sec
Seek/read test:	    104 seek/reads per second
r/w speed:	    buf 512 bytes, rd 53407 byte/sec, wr 28391 byte/sec
r/w speed:	    buf 4096 bytes, rd 181833 byte/sec, wr 135591 byte/sec
r/w speed:	    buf 8192 bytes, rd 282128 byte/sec, wr 153450 byte/sec
r/w speed:	    buf 32768 bytes, rd 385978 byte/sec, wr 213269 byte/sec
r/w speed:	    buf 131072 bytes, rd 476625 byte/sec, wr 287281 byte/sec
r/w speed:	    buf 524288 bytes, rd 499321 byte/sec, wr 317750 byte/sec
--
J. Eric Townsend     Internet: jet@uh.edu    Bitnet: jet@UHOU
Systems Manager - University of Houston Dept. of Mathematics - (713) 749-2120
EastEnders list: eastender@karazm.math.uh.edu
Skate UNIX(r)