Code:
With the results shown for these systems: system #1: 1.7GHz pentium-m with 400MHz DDR2 RAM, arch=i686 system #2: 2.1GHz i3-2310M with 1333MHz DDR3 RAM, arch=x86_64 system #3: 3.2GHz i7-970 with 1333MHz DDR3, arch=x86_64 system #4: 2.20GHz Xeon E5-2660 with 1333MHz DDR3, arch=x86_64 system #5: 2.30GHz i7-3615QM with 1600MHz DDR3, arch=x86_64 system #6: 1.30GHz i5-4250U with 1-channel 1600MHz DDR3, arch=x86_64 system #7: 3.55GHz IBM,8231-E2B with 1066MHz DDR3, POWER7 revision 2.1 system #8: 2.60GHz i7-5600U with 1600MHz DDR3, arch=x86_64 system #9: 3.80GHz IBM,02CY649 with 2666MHz DDR4, POWER9 revision 2.3 system 10: 2.95GHz IBM,9043-MRX, POWER10 revision 2.0 system 11: 3.23Ghz Apple M1 with 2666MHz DDR4, arch=arm64 per-system transfer rate (GB/s) blksize #1 #2 #3 #4 #5 #6 #7 #8 #9 10 11 ------------------------------------------------------------------------ 1024 .73 1.7 2.6 .64 1.0 2.5 1.3 .9 1.2 2.5 2.0 2048 1.3 3.0 4.4 1.2 2.0 4.4 2.5 1.7 2.3 4.9 3.8 4096 2.4 5.1 6.5 2.3 3.7 7.4 4.8 3.1 4.6 9.6 6.9 8192 3.5 7.3 8.5 4.0 6.0 10.4 9.2 5.6 9.1 18.4 12.3 16384 3.9 9.4 10.1 6.3 8.3 13.3 16.8 8.6 17.3 33.6 19.8 32768 5.2 9.9 11.1 8.1 10.7 13.2 28.0 11.4 32.2 59.2 27.0 65536 5.3 11.2 12.0 10.6 12.8 16.1 41.4 14.9 56.9 95.4 34.1 131072 5.5 11.8 12.3 12.1 14.0 16.7 54.8 17.1 86.5 125.0 38.2 -> 262144 5.7 11.6 12.5 12.3 14.7 16.4 40.0 18.0 113.0 148.0 41.3 <- 524288 5.7 11.4 12.5 12.1 14.7 15.5 34.5 18.0 104.0 153.0 43.1 1048576 5.8 11.4 12.6 12.2 14.9 15.7 36.5 18.2 87.9 114.0 44.8
Comment