rbabel@babylon.UUCP (Ralph Babel) (11/18/90)
In article <1990Nov18.191622.13242@lavaca.uh.edu> jet@karazm.math.uh.edu (J. Eric Townsend) writes: > System: Amiga 2000, rev 4.3, FatAgnus, 1Mb motherboard > Card: GVP Series II SCSI+ram, 4Mb 80ns RAM > Drive: 40Mb Quantum Benchmarks, once again ... sigh ... Somehow, Eric's results do not match the figures I get: - B2000 PAL, MC68000, 1 MB Chip, 0 Fast, - GVP Series-II SCSI (no RAM) w/ 40 meg Quantum, - Kickstart 1.3, 1.3 FastFileSystem, 512-byte blocks, - no Startup-Sequence, 640x256x2 Workbench screen, - empty partition, no AddBuffers (Envec = 32), - DiskPerf from Fish Disk 187. Please note: - accelerator boards, - different memory configurations, - new 2.0 FS (also available on disk!), - larger block sizes (only with 2.0 FS), - different drives (e.g. Quantum 52S), - different Benchmarks will give you other results (usually higher). BTW: With a Quantum 40, it's more likely that you measure the drive's speed, not the controller's. File create/delete: create 16 files/sec, delete 38 files/sec Directory scan: 106 entries/sec Seek/read test: 101 seek/reads per second r/w speed: buf 512 bytes, rd 51442 byte/sec, wr 29358 byte/sec r/w speed: buf 4096 bytes, rd 177724 byte/sec, wr 156115 byte/sec r/w speed: buf 8192 bytes, rd 244803 byte/sec, wr 185588 byte/sec r/w speed: buf 32768 bytes, rd 455902 byte/sec, wr 262144 byte/sec r/w speed: buf 131072 bytes, rd 587986 byte/sec, wr 349525 byte/sec r/w speed: buf 524288 bytes, rd 635500 byte/sec, wr 388361 byte/sec Now, what do all those figures mean? Actually, nothing at all, since they won't make Eric's system any faster, but that's a general problem with benchmarks. Somehow, this reminds me of an article I found in comp.sys.amiga.tech just recently: > I ran Dhrystones 2.1 on a 3000/25 with 68030 specific > options (and 881 for the printf's %f) using non-register > args and the optimizer. I got 5263 dhrystones. Does this > sound right? I thought people here were claiming 7000? > Anything I should be doing differently? Ralph
jet@karazm.math.uh.edu (J. Eric Townsend) (11/19/90)
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)