CPU Benchmark
GeekBench
ARM:
wget https://cdn.geekbench.com/Geekbench-5.4.0-LinuxARMPreview.tar.gz
AMD64:
wget https://cdn.geekbench.com/Geekbench-5.4.0-Linux.tar.gz
tar zxf Geekbench-5.4.0-Linux.tar.gz
| Device | CPU | info | frq | Single-Core Score | Multi-Core Score |
|---|---|---|---|---|---|
| N/A | Xeon W2295(es) | 18c36t | 4.5GHz | ||
| NanoPi NEO | Allwinner H3 | 4-core Cortex-A7 | 1.2GHz | 54 | 92 |
| Davinci-MINI | Atlas 200 DK | 8-core ARMv8 | 159 | 578 | |
| Khadas VIM3 | A311D | 4-core Cortex-A73 & 2-core Cortex-A53 | 1.8G & 1.2G | 347 | 1202 |
| Alibaba Cloud ECS | Xeon E5-2682 v4 | 1 Core | 2.49GHz | 641 | 640 |
| N/A | G5500 | 2 Core | 3.80GHz | 1014 | 1648 |
| https://browser.geekbench.com/user/389197 |
计算圆周率
1 | time echo "scale=5000; 4*a(1)" | bc -l -q |
time是计时程序。scale是精度，4a(1) 调用了反正切函数。
由三角函数我们知道1的反正切是pi/4, pi=4 pi/4。 -l -q参数的意思请参照manpage。这一行其实就是让bc计算1的反正切，计算精度是5000位。
有的人用tcsh作为shell的需要注意指定time工具的位置，/usr/bin/time。tcsh内部有一个内部命令time，输出格式诡异。
source:
Only Single Threading
| Device | CPU | Info | Frq | Time(5000) |
|---|---|---|---|---|
| N/A | Xeon W2295(es) | 18c36t | 4.50 GHz | 15.956s |
| NanoPi NEO | Allwinner H3 | 4-core Cortex-A7 | 1.2GHz | 118.814s |
| Davinci-MINI | Atlas 200 DK | 8-core ARMv8 | 57.200s | |
| Khadas VIM3 | A311D | 4-core Cortex-A73 & 2-core Cortex-A53 | 1.8G & 1.2G | 33.312s |
| Alibaba Cloud ECS | Xeon E5-2682 v4 | 1 Core | 2.49GHz | 20.40s |
| N/A | G5500 | 2 Core | 3.80GHz | 16.63s |
| Raspberry Pi 4B | BCM2835 | 4-core Cortex-A72 | 1.50 GHz | 44.76s |
sysbench
有待研究