测试集使用 bm33708.tsp, 一共有 33708 个城市
# 先使用 -O0 的编译选项，【psNote】建议使用 gcc 11 及以上的版本进行编译，物理机自带的 gcc 9 版本略有点老
g++ -g -O0 optimized_tsp.cpp -o optimized_tsp
g++ -g -O0 base_tsp.cpp -o base_tsp
# 使用 likwid 的命令，这里第一步尚未实现多进程或多线程
# 1. likwid-perfctr: 调用 likwid 的性能计数器模块
# 2. -C 0: 指定使用 CPU 核心 0 来执行下列命令，特定核的性能
# 3. -g MEM: 指定 MEM 性能组，感兴趣的是内存相关的硬件时间
likwid-perfctr -C 0 -g MEM ./base_tsp bm33708.tsp
likwid-perfctr -C 0 -g MEM ./optimized_tsp bm33708.tsptangyufei@dell-PowerEdge-R730:~/fi_github_repo/Nearest_Neighbor_Algorithm$ likwid-perfctr -C 0 -g MEM ./base_tsp bm33708.tsp
--------------------------------------------------------------------------------
CPU name: Intel(R) Xeon(R) CPU E5-2640 v4 @ 2.40GHz
CPU type: Intel Xeon Broadwell EN/EP/EX processor
CPU clock: 2.40 GHz
--------------------------------------------------------------------------------
Current working directory: "/home/tangyufei/fi_github_repo/Nearest_Neighbor_Algorithm"
Reading file: dataSet/bm33708.tsp
Error: Can not parse line ---EOF
Reading from tsp file: 33708 cities.
total distance: 1.20341e+06
--------------------------------------------------------------------------------
Group 1: MEM
+-----------------------+---------+--------------+
| Event | Counter | HWThread 0 |
+-----------------------+---------+--------------+
| INSTR_RETIRED_ANY | FIXC0 | 454421715271 |
| CPU_CLK_UNHALTED_CORE | FIXC1 | 303936872339 |
| CPU_CLK_UNHALTED_REF | FIXC2 | 227824724520 |
| CAS_COUNT_RD | MBOX0C0 | 138706163 |
| CAS_COUNT_WR | MBOX0C1 | 96217372 |
| CAS_COUNT_RD | MBOX1C0 | 143371367 |
| CAS_COUNT_WR | MBOX1C1 | 100910946 |
| CAS_COUNT_RD | MBOX2C0 | 153623122 |
| CAS_COUNT_WR | MBOX2C1 | 111046111 |
| CAS_COUNT_RD | MBOX3C0 | 139019707 |
| CAS_COUNT_WR | MBOX3C1 | 96542974 |
| CAS_COUNT_RD | MBOX4C0 | - |
| CAS_COUNT_WR | MBOX4C1 | - |
| CAS_COUNT_RD | MBOX5C0 | - |
| CAS_COUNT_WR | MBOX5C1 | - |
| CAS_COUNT_RD | MBOX6C0 | 0 |
| CAS_COUNT_WR | MBOX6C1 | 0 |
| CAS_COUNT_RD | MBOX7C0 | - |
| CAS_COUNT_WR | MBOX7C1 | - |
+-----------------------+---------+--------------+
+-----------------------------------+------------+
| Metric | HWThread 0 |
+-----------------------------------+------------+
| Runtime (RDTSC) [s] | 103.9265 |
| Runtime unhalted [s] | 126.6427 |
| Clock [MHz] | 3201.7367 |
| CPI | 0.6688 |
| Memory read bandwidth [MBytes/s] | 353.9243 |
| Memory read data volume [GBytes] | 36.7821 |
| Memory write bandwidth [MBytes/s] | 249.2331 |
| Memory write data volume [GBytes] | 25.9019 |
| Memory bandwidth [MBytes/s] | 603.1574 |
| Memory data volume [GBytes] | 62.6840 |
+-----------------------------------+------------+
tangyufei@dell-PowerEdge-R730:~/fi_github_repo/Nearest_Neighbor_Algorithm$ likwid-perfctr -C 0 -g MEM ./optimized_tsp bm33708.tsp
--------------------------------------------------------------------------------
CPU name: Intel(R) Xeon(R) CPU E5-2640 v4 @ 2.40GHz
CPU type: Intel Xeon Broadwell EN/EP/EX processor
CPU clock: 2.40 GHz
--------------------------------------------------------------------------------
Current working directory: "/home/tangyufei/fi_github_repo/Nearest_Neighbor_Algorithm"
Reading file: dataSet/bm33708.tsp
Error: Can not parse line ---EOF
Reading from tsp file: 33708 cities.
total distance: 1.20341e+06
--------------------------------------------------------------------------------
Group 1: MEM
+-----------------------+---------+--------------+
| Event | Counter | HWThread 0 |
+-----------------------+---------+--------------+
| INSTR_RETIRED_ANY | FIXC0 | 428289635495 |
| CPU_CLK_UNHALTED_CORE | FIXC1 | 274185760330 |
| CPU_CLK_UNHALTED_REF | FIXC2 | 199596389688 |
| CAS_COUNT_RD | MBOX0C0 | 136150224 |
| CAS_COUNT_WR | MBOX0C1 | 104026648 |
| CAS_COUNT_RD | MBOX1C0 | 140000074 |
| CAS_COUNT_WR | MBOX1C1 | 107921102 |
| CAS_COUNT_RD | MBOX2C0 | 147801241 |
| CAS_COUNT_WR | MBOX2C1 | 115780315 |
| CAS_COUNT_RD | MBOX3C0 | 136277993 |
| CAS_COUNT_WR | MBOX3C1 | 104196921 |
| CAS_COUNT_RD | MBOX4C0 | - |
| CAS_COUNT_WR | MBOX4C1 | - |
| CAS_COUNT_RD | MBOX5C0 | - |
| CAS_COUNT_WR | MBOX5C1 | - |
| CAS_COUNT_RD | MBOX6C0 | 0 |
| CAS_COUNT_WR | MBOX6C1 | 0 |
| CAS_COUNT_RD | MBOX7C0 | - |
| CAS_COUNT_WR | MBOX7C1 | - |
+-----------------------+---------+--------------+
+-----------------------------------+------------+
| Metric | HWThread 0 |
+-----------------------------------+------------+
| Runtime (RDTSC) [s] | 91.0037 |
| Runtime unhalted [s] | 114.2460 |
| Clock [MHz] | 3296.8263 |
| CPI | 0.6402 |
| Memory read bandwidth [MBytes/s] | 393.9914 |
| Memory read data volume [GBytes] | 35.8547 |
| Memory write bandwidth [MBytes/s] | 303.7590 |
| Memory write data volume [GBytes] | 27.6432 |
| Memory bandwidth [MBytes/s] | 697.7504 |
| Memory data volume [GBytes] | 63.4979 |
+-----------------------------------+------------+
对于未优化的性能和优化后的性能比较:
从下面的几个项中，可以看到性能提升:
-
程序执行时间 Runtime(RDTSC) 读取时间戳计数器(RDTSC)，程序执行时间 103.9265s -> 91.0037s
-
CPU 核心在未停止状态下执行指令的时间 Runtime unhalted 优化版本 126.6427s -> 114.2460s
-
CLock 时钟频率 优化版本的时钟频率 3201.7367 MHz -> 3296.8263 MHz 更高效的代码允许CPU更多地处于高性能状态
-
CPI(Cycles Per Instruction): 每条指令需要的时钟周期数，CPI较低意味着更高的指令执行效率。 0.6688 -> 0.6402
-
Memory bandwidth 总内存带宽和总数居交换量 603.1574 MBytes/s -> 697.7504 MBytes/s
使用lscpu 查看当前可用的 cpu 核心数是 40, 还是使用 33708 城市数据集
# 编译使用 openmp 进行并行化的程序
g++ -fopenmp -O3 -std=c++17 optimized_tsp.cpp -o optimized_tsp
# 开启 40 个核的运行命令
likwid-perfctr -C 0-39 -g MEM ./optimized_tsp bm33708.tsp实验的结果如下:
tangyufei@dell-PowerEdge-R730:~/fi_github_repo/Nearest_Neighbor_Algorithm$ likwid-perfctr -C 0-39 -g MEM ./optimized_tsp bm33708.tsp
--------------------------------------------------------------------------------
CPU name: Intel(R) Xeon(R) CPU E5-2640 v4 @ 2.40GHz
CPU type: Intel Xeon Broadwell EN/EP/EX processor
CPU clock: 2.40 GHz
--------------------------------------------------------------------------------
Current working directory: "/home/tangyufei/fi_github_repo/Nearest_Neighbor_Algorithm"
Reading file: dataSet/bm33708.tsp
Error: Can not parse line ---EOF
Reading from tsp file: 33708 cities.
total distance: 1.20341e+06
--------------------------------------------------------------------------------
Group 1: MEM
+-----------------------+---------+-------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
| Event | Counter | HWThread 0 | HWThread 1 | HWThread 2 | HWThread 3 | HWThread 4 | HWThread 5 | HWThread 6 | HWThread 7 | HWThread 8 | HWThread 9 | HWThread 10 | HWThread 11 | HWThread 12 | HWThread 13 | HWThread 14 | HWThread 15 | HWThread 16 | HWThread 17 | HWThread 18 | HWThread 19 | HWThread 20 | HWThread 21 | HWThread 22 | HWThread 23 | HWThread 24 | HWThread 25 | HWThread 26 | HWThread 27 | HWThread 28 | HWThread 29 | HWThread 30 | HWThread 31 | HWThread 32 | HWThread 33 | HWThread 34 | HWThread 35 | HWThread 36 | HWThread 37 | HWThread 38 | HWThread 39 |
+-----------------------+---------+-------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
| INSTR_RETIRED_ANY | FIXC0 | 20679149634 | 2175012031 | 2960545124 | 4548185178 | 620015327 | 1409598598 | 2526309567 | 374536124 | 414608507 | 465194446 | 487763570 | 2750578574 | 564356290 | 16657430284 | 6231524474 | 4228434678 | 487733246 | 612770729 | 606760429 | 478180640 | 396948312 | 509354742 | 596123999 | 1435311080 | 391168197 | 700730869 | 1438948101 | 653673951 | 419094451 | 457406761 | 413089716 | 2959264646 | 421919117 | 6863566139 | 467784899 | 4511414757 | 573382907 | 694056954 | 2659992536 | 1319242235 |
| CPU_CLK_UNHALTED_CORE | FIXC1 | 16373592699 | 4065557999 | 5178571276 | 5744613964 | 3387438350 | 3773037834 | 4843346211 | 3274087019 | 3229577110 | 3237885972 | 6939591634 | 4291415571 | 3327349334 | 12879266374 | 4627389191 | 5702679617 | 3217045148 | 3333923447 | 3481294708 | 3319845435 | 3381574142 | 3291440003 | 3446393336 | 3300592736 | 3193664456 | 3369200931 | 3705567968 | 3446558179 | 3229735409 | 3130996870 | 3367565039 | 4529886353 | 3181636956 | 9053333563 | 3246672832 | 7469226594 | 3280988607 | 3414822086 | 4760782760 | 3754498802 |
| CPU_CLK_UNHALTED_REF | FIXC2 | 13563087072 | 4307308080 | 5372965824 | 5346890112 | 3628563432 | 3922672248 | 4921475448 | 3409922088 | 3428417640 | 3439024632 | 6203085144 | 4462606368 | 3601427616 | 10537559208 | 4614568584 | 6181373784 | 3442450536 | 3503819040 | 3566161488 | 3459200616 | 3381979680 | 3455121384 | 3573526272 | 3365193168 | 3373449360 | 3506061816 | 3819294312 | 3578388672 | 3409512840 | 3285157296 | 3385206696 | 4931298624 | 3424176864 | 7933755312 | 3438176832 | 7309187472 | 3579974592 | 3671469984 | 5211257688 | 3935468880 |
| CAS_COUNT_RD | MBOX0C0 | 74057437 | 56723819 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_WR | MBOX0C1 | 78039769 | 58555760 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_RD | MBOX1C0 | 73906153 | 56690997 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_WR | MBOX1C1 | 77946725 | 58540655 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_RD | MBOX2C0 | 72445654 | 58149089 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_WR | MBOX2C1 | 76506209 | 59994007 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_RD | MBOX3C0 | 72516984 | 56858387 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_WR | MBOX3C1 | 76559447 | 58661600 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_RD | MBOX4C0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| CAS_COUNT_WR | MBOX4C1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| CAS_COUNT_RD | MBOX5C0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| CAS_COUNT_WR | MBOX5C1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| CAS_COUNT_RD | MBOX6C0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_WR | MBOX6C1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_RD | MBOX7C0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| CAS_COUNT_WR | MBOX7C1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
+-----------------------+---------+-------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
+----------------------------+---------+--------------+------------+-------------+--------------+
| Event | Counter | Sum | Min | Max | Avg |
+----------------------------+---------+--------------+------------+-------------+--------------+
| INSTR_RETIRED_ANY STAT | FIXC0 | 97161161819 | 374536124 | 20679149634 | 2.429029e+09 |
| CPU_CLK_UNHALTED_CORE STAT | FIXC1 | 183782646515 | 3130996870 | 16373592699 | 4.594566e+09 |
| CPU_CLK_UNHALTED_REF STAT | FIXC2 | 182480236704 | 3285157296 | 13563087072 | 4.562006e+09 |
| CAS_COUNT_RD STAT | MBOX0C0 | 130781256 | 0 | 74057437 | 3.269531e+06 |
| CAS_COUNT_WR STAT | MBOX0C1 | 136595529 | 0 | 78039769 | 3.414888e+06 |
| CAS_COUNT_RD STAT | MBOX1C0 | 130597150 | 0 | 73906153 | 3.264929e+06 |
| CAS_COUNT_WR STAT | MBOX1C1 | 136487380 | 0 | 77946725 | 3.412184e+06 |
| CAS_COUNT_RD STAT | MBOX2C0 | 130594743 | 0 | 72445654 | 3.264869e+06 |
| CAS_COUNT_WR STAT | MBOX2C1 | 136500216 | 0 | 76506209 | 3.412505e+06 |
| CAS_COUNT_RD STAT | MBOX3C0 | 129375371 | 0 | 72516984 | 3.234384e+06 |
| CAS_COUNT_WR STAT | MBOX3C1 | 135221047 | 0 | 76559447 | 3.380526e+06 |
| CAS_COUNT_RD STAT | MBOX4C0 | 0 | inf | 0 | 0 |
| CAS_COUNT_WR STAT | MBOX4C1 | 0 | inf | 0 | 0 |
| CAS_COUNT_RD STAT | MBOX5C0 | 0 | inf | 0 | 0 |
| CAS_COUNT_WR STAT | MBOX5C1 | 0 | inf | 0 | 0 |
| CAS_COUNT_RD STAT | MBOX6C0 | 0 | 0 | 0 | 0 |
| CAS_COUNT_WR STAT | MBOX6C1 | 0 | 0 | 0 | 0 |
| CAS_COUNT_RD STAT | MBOX7C0 | 0 | inf | 0 | 0 |
| CAS_COUNT_WR STAT | MBOX7C1 | 0 | inf | 0 | 0 |
+----------------------------+---------+--------------+------------+-------------+--------------+
+-----------------------------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
| Metric | HWThread 0 | HWThread 1 | HWThread 2 | HWThread 3 | HWThread 4 | HWThread 5 | HWThread 6 | HWThread 7 | HWThread 8 | HWThread 9 | HWThread 10 | HWThread 11 | HWThread 12 | HWThread 13 | HWThread 14 | HWThread 15 | HWThread 16 | HWThread 17 | HWThread 18 | HWThread 19 | HWThread 20 | HWThread 21 | HWThread 22 | HWThread 23 | HWThread 24 | HWThread 25 | HWThread 26 | HWThread 27 | HWThread 28 | HWThread 29 | HWThread 30 | HWThread 31 | HWThread 32 | HWThread 33 | HWThread 34 | HWThread 35 | HWThread 36 | HWThread 37 | HWThread 38 | HWThread 39 |
+-----------------------------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
| Runtime (RDTSC) [s] | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 | 10.8829 |
| Runtime unhalted [s] | 6.8225 | 1.6940 | 2.1578 | 2.3936 | 1.4115 | 1.5721 | 2.0181 | 1.3642 | 1.3457 | 1.3491 | 2.8916 | 1.7881 | 1.3864 | 5.3665 | 1.9281 | 2.3762 | 1.3405 | 1.3892 | 1.4506 | 1.3833 | 1.4090 | 1.3715 | 1.4360 | 1.3753 | 1.3307 | 1.4039 | 1.5440 | 1.4361 | 1.3458 | 1.3046 | 1.4032 | 1.8875 | 1.3257 | 3.7723 | 1.3528 | 3.1122 | 1.3671 | 1.4229 | 1.9837 | 1.5644 |
| Clock [MHz] | 2897.2556 | 2265.2472 | 2313.1151 | 2578.4633 | 2240.4644 | 2308.3970 | 2361.8459 | 2304.3430 | 2260.7540 | 2259.5795 | 2684.8965 | 2307.8807 | 2217.3032 | 2933.2729 | 2406.6132 | 2214.0903 | 2242.8014 | 2283.5752 | 2342.8320 | 2303.2628 | 2399.6577 | 2286.2515 | 2314.5642 | 2353.8745 | 2272.0426 | 2306.2624 | 2328.4828 | 2311.5297 | 2273.4007 | 2287.3248 | 2387.4384 | 2204.5877 | 2229.9535 | 2738.6157 | 2266.2702 | 2452.4937 | 2199.5111 | 2232.1813 | 2192.4878 | 2289.5855 |
| CPI | 0.7918 | 1.8692 | 1.7492 | 1.2631 | 5.4635 | 2.6767 | 1.9172 | 8.7417 | 7.7895 | 6.9603 | 14.2274 | 1.5602 | 5.8958 | 0.7732 | 0.7426 | 1.3487 | 6.5959 | 5.4407 | 5.7375 | 6.9427 | 8.5189 | 6.4620 | 5.7813 | 2.2996 | 8.1644 | 4.8081 | 2.5752 | 5.2726 | 7.7065 | 6.8451 | 8.1521 | 1.5307 | 7.5409 | 1.3190 | 6.9405 | 1.6556 | 5.7222 | 4.9201 | 1.7898 | 2.8460 |
| Memory read bandwidth [MBytes/s] | 1722.6354 | 1343.3018 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Memory read data volume [GBytes] | 18.7473 | 14.6190 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Memory write bandwidth [MBytes/s] | 1817.4685 | 1386.4064 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Memory write data volume [GBytes] | 19.7793 | 15.0881 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Memory bandwidth [MBytes/s] | 3540.1039 | 2729.7082 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Memory data volume [GBytes] | 38.5266 | 29.7072 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
+-----------------------------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
+----------------------------------------+------------+-----------+-----------+-----------+
| Metric | Sum | Min | Max | Avg |
+----------------------------------------+------------+-----------+-----------+-----------+
| Runtime (RDTSC) [s] STAT | 435.3160 | 10.8829 | 10.8829 | 10.8829 |
| Runtime unhalted [s] STAT | 76.5778 | 1.3046 | 6.8225 | 1.9144 |
| Clock [MHz] STAT | 94052.5090 | 2192.4878 | 2933.2729 | 2351.3127 |
| CPI STAT | 189.3375 | 0.7426 | 14.2274 | 4.7334 |
| Memory read bandwidth [MBytes/s] STAT | 3065.9372 | 0 | 1722.6354 | 76.6484 |
| Memory read data volume [GBytes] STAT | 33.3663 | 0 | 18.7473 | 0.8342 |
| Memory write bandwidth [MBytes/s] STAT | 3203.8749 | 0 | 1817.4685 | 80.0969 |
| Memory write data volume [GBytes] STAT | 34.8674 | 0 | 19.7793 | 0.8717 |
| Memory bandwidth [MBytes/s] STAT | 6269.8121 | 0 | 3540.1039 | 156.7453 |
| Memory data volume [GBytes] STAT | 68.2338 | 0 | 38.5266 | 1.7058 |
+----------------------------------------+------------+-----------+-----------+-----------+
可以看到，在 40 核的优化下，运行时间提升了 10.4717 倍，可以认为是 10 倍的加速比。