1、背景介绍
目前项目中采用D3000通过PCIE 4.0 x16 与一个华为昇腾310P模组相连，可通过华为提供的工具包测试PCIE带宽.
2、测试命令
ascend-dmi --bw3、实测结果
Host应该是指D3000 ，Device指310P模组
Device to Device Test Device 0: Ascend 310P1. ---------------------------------------------------------------- Size(Bytes) Execute Times Bandwidth(GB/s) Elapsed Time(us) ---------------------------------------------------------------- 2 5 0.000086 43.15 4 5 0.000170 43.75 8 5 0.000352 42.32 16 5 0.000704 42.32 32 5 0.001370 43.51 64 5 0.002793 42.68 128 5 0.005698 41.84 256 5 0.011331 42.08 512 5 0.022663 42.08 1024 5 0.045455 41.96 2048 5 0.090652 42.08 4096 5 0.180791 42.20 8192 5 0.348774 43.75 16384 5 0.697548 43.75 32768 5 1.365333 44.70 65536 5 2.673629 45.66 131072 5 5.145729 47.45 262144 5 9.525581 51.26 524288 5 19.095571 51.14 1048576 5 36.328160 53.76 2097152 5 65.015873 60.08 4194304 5 112.219178 69.62 8388608 5 172.690382 90.48 16777216 5 236.378720 132.20 33554432 5 279.173589 223.88 ---------------------------------------------------------------- Device to Host Test Device 0: Ascend 310P1. ---------------------------------------------------------------- Size(Bytes) Execute Times Bandwidth(GB/s) Elapsed Time(us) ---------------------------------------------------------------- 2 5 0.000191 10.49 4 5 0.000373 10.73 8 5 0.000763 10.49 16 5 0.001491 10.73 32 5 0.002983 10.73 64 5 0.005965 10.73 128 5 0.011185 11.44 256 5 0.023342 10.97 512 5 0.047722 10.73 1024 5 0.093369 10.97 2048 5 0.190887 10.73 4096 5 0.390452 10.49 8192 5 0.780903 10.49 16384 5 1.561806 10.49 32768 5 2.987803 10.97 65536 5 6.108398 10.73 131072 5 8.867029 14.78 262144 5 11.106178 23.60 524288 5 14.758545 35.52 1048576 5 18.325194 57.22 2097152 5 21.043285 99.66 4194304 5 22.410428 187.16 8388608 5 23.409429 358.34 16777216 5 23.943091 700.71 33554432 5 24.140221 1389.98 ---------------------------------------------------------------- Host to Device Test Device 0: Ascend 310P1. ---------------------------------------------------------------- Size(Bytes) Execute Times Bandwidth(GB/s) Elapsed Time(us) ---------------------------------------------------------------- 2 5 0.000191 10.49 4 5 0.000381 10.49 8 5 0.000763 10.49 16 5 0.001491 10.73 32 5 0.003121 10.25 64 5 0.006243 10.25 128 5 0.012202 10.49 256 5 0.024403 10.49 512 5 0.048806 10.49 1024 5 0.099883 10.25 2048 5 0.195226 10.49 4096 5 0.399532 10.25 8192 5 0.780903 10.49 16384 5 1.527099 10.73 32768 5 3.054199 10.73 65536 5 5.975607 10.97 131072 5 9.162597 14.31 262144 5 12.082545 21.70 524288 5 16.915564 30.99 1048576 5 20.745502 50.54 2097152 5 22.966300 91.31 4194304 5 24.399703 171.90 8388608 5 25.276129 331.88 16777216 5 25.861354 648.74 33554432 5 26.130243 1284.12 ----------------------------------------------------------------
