Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!apple!rutgers!uwvax!astroatc!nicmad!lalonde From: lalonde@nicmad.UUCP (John Lalonde) Newsgroups: comp.unix.aux Subject: Re: Some questions about A/UX Message-ID: <3436@nicmad.UUCP> Date: 27 Nov 88 18:22:09 GMT References: <941@ccnysci.UUCP> <19528@apple.Apple.COM> <964@ccnysci.UUCP> <19816@apple.Apple.COM> <1011@ccnysci.UUCP> <21057@apple.Apple.COM> <16775@onfcanim.UUCP> <165@fishpond.UUCP> Reply-To: lalonde@nicmad.UUCP (John LaLonde) Organization: Nicolet Instrument Corp. Madison, WI Lines: 54 In article <165@fishpond.UUCP> fnf@fishpond.UUCP (Fred Fish) writes: >I decided to retry the disk performance benchmark that I ran in Feb '88 and >posted the results for. >Performance timings using Rick Spanbauer's diskperf.c program. > > Amiga Sun A/UX A/UX > 2000 3/50 Mac-II Mac-II > ST277N HD80SC HD80SC > Nov 88 ????? Feb 88 Nov 88 > >File creations (files/sec) 14 6 6 6 >File deletions (files/sec) 41 11 8 8 >Directory scan (entries/sec) 92 350 371 397 >Seek+read (seek+read/sec) 85 298 110 93 >Read speed, 512 buffer (byte/sec) 67216 240499 55168 25593 >Read speed, 4096 buffer (byte/sec) 109226 234057 53708 25323 >Read speed, 8192 buffer (byte/sec) 187245 233189 54013 25183 >Read speed, 32768 buffer (byte/sec) 374491 236343 53644 25123 >Write speed, 512 buffer (byte/sec) 28187 215166 44181 43855 >Write speed, 4096 buffer (byte/sec) 137970 182466 47211 46287 >Write speed, 8192 buffer (byte/sec) 154202 179755 46832 46445 >Write speed, 32768 buffer (byte/sec) 218453 187580 46930 46707 I compiled diskperf.c and ran it on two different sun 386i workstations. I made no modifications to the benchmark and ran it on a stock version of SunOS 4.0.0 sun 386i (model 150/8x) File creations (files/sec) 18 File deletions (files/sec) 54 Directory scan (entries/sec) 976 Seek+read (seek+read/sec) 1976 Read speed, 512 buffer (byte/sec) 776722 Read speed, 4096 buffer (byte/sec) 2995931 Read speed, 8192 buffer (byte/sec) 3534525 Read speed, 32768 buffer (byte/sec) 3700856 Write speed, 512 buffer (byte/sec) 280618 Write speed, 4096 buffer (byte/sec) 1728421 Write speed, 8192 buffer (byte/sec) 2069557 Write speed, 32768 buffer (byte/sec) 1787345 Notes: (1) Sun-386i model 150/8x uses a 20MHz 80386, has 8 MB of memory, and 32KB of cache. (2) Sun 386i configured with a CDC Wren IV (94171-300) disk (3) Sun 386i uses the Intel 82380 DMA Controller (4) Sun 386i uses the Western Digital 33c93 SCSI Controller IC -- John LaLonde Nicolet Instrument Corporation uucp: {ucbvax,rutgers,harvard}!uwvax!astroatc!nicmad!lalonde