Printed on: 11/28/1989 21:52:40 PC MAGAZINE LABORATORY BENCHMARKS SERIES RELEASE 5.1 ---------------------------------------- Test Machine: pcjr Computed CPU: V20 13.6 Mhz Machine "A": 8Mhz IBM PC/AT Machine "B": 4.77Mhz IBM PC/XT TEST MACHINE MACHINE MACHINE "A" "B" ======= ======= ======= PROCESSOR PERFORMANCE TESTS: Instruction Mix - 8088 23.01 9.14 33.01 Instruction Mix - 80286 NOT RUN 9.06 N/A Instruction Mix - 80386 NOT RUN N/A N/A 128K NOP Loop 12.52 4.17 10.16 Do-nothing Loop 6.64 3.64 9.94 Integer Add 7.31 2.14 9.94 Integer Multiply 4.07 1.21 9.99 String Sort and Move 9.45 2.93 11.04 Prime Number Sieve 6.75 3.02 11.54 Floating Point Mix 74.37 17.24 87.72 COPROCESSOR PERFORMANCE TESTS: Coprocessor Type N/A Math Coprocessor NOT RUN 2.47 N/A DISK PERFORMANCE TESTS: BIOS DISK SEEK Sequential 21.25 10.11 16.76 Random 98.65 37.46 93.43 DOS DISK ACCESS 149.45 42.68 114.65 DOS FILE ACCESS (SMALL RECORDS) 512 RECORDS/512 BYTES EACH File Create 31.63 10.32 12.33 Sequential Write 45.92 9.01 12.67 Sequential Read 21.42 10.27 12.29 Random Write 68.38 12.69 34.71 Random Read 51.14 18.40 26.27 ------- ------- ------- TOTAL (512/512) 218.49 60.69 98.27 64 RECORDS/4096 BYTES EACH File Create 13.24 2.86 5.49 Sequential Write 11.92 2.53 5.26 Sequential Read 11.64 2.74 5.02 Random Write 15.38 3.14 6.94 Random Read 15.11 3.18 6.83 ------- ------- ------- TOTAL (64/4096) 67.29 14.45 29.54 ======= ======= ======= TOTAL (SMALL) 285.78 75.14 127.81 DOS FILE ACCESS (LARGE RECORDS) 16 RECORDS/16384 BYTES EACH File Create 11.21 2.09 4.78 Sequential Write 10.33 1.86 4.42 Sequential Read 9.84 1.93 4.18 Random Write 10.82 1.98 5.20 Random Read 10.55 1.98 5.07 ------- ------- ------- TOTAL (16/16384) 52.75 9.84 23.65 8 RECORDS/32768 BYTES EACH File Create 11.21 1.92 4.52 Sequential Write 9.89 1.82 4.25 Sequential Read 9.45 1.81 4.10 Random Write 10.33 1.81 4.49 Random Read 9.83 1.86 4.36 ------- ------- ------- TOTAL (8/32768) 50.71 9.22 21.72 ======= ======= ======= TOTAL (LARGE) 103.46 19.06 45.37 ======= ======= ======= TOTAL (SMALL AND LARGE) 389.24 94.20 173.18 VIDEO PERFORMANCE TESTS: Direct Screen Access 8.95 9.12 11.59 Teletype Without Scrolling 9.18 7.25 17.25 Teletype With Scrolling 13.18 11.20 23.39 MEMORY PERFORMANCE TESTS: Conventional Read 4.06 1.43 6.37 Conventional Write 4.12 1.43 6.37 Expanded Read NOT RUN 2.41 11.15 Expanded Write NOT RUN 2.42 11.15 Extended Read NOT RUN 11.97 N/A Extended Write NOT RUN 11.92 N/A