EVO ORIN实时内核#
实时内核获取#
可以从米文官网，对应的镜像下载目录获取。
安装方式#
#启动命令终端，通过cd命令进入到deb文件的存放目录下，如：
cd /home/nvidia/
#deb包版本号更换为实际使用的版本
sudo dpkg -i --force-overwrite nvidia-l4t-rt-kernel-4.2.12.65-arm64.deb nvidia-l4t-rt-display-4.2.12.65-36.4.0-arm64.deb nvidia-l4t-rt-kernel-headers-4.2.12.65-arm64.deb nvidia-l4t-rt-kernel-oot-modules-4.2.12.65-arm64.deb
#重启设备
sudo reboot
设置CPU百分比#
#安装方法：
#chaosblade-1.7.3-compiled.tar 解压后 整个文件拷贝到设备里，执行如下命令
# 指定百分比负载（注意以下两个命令都需要执行才能生效）
./blade create cpu load --cpu-percent 60
./blade destroy beeaaf3a7007031d
验证方式#
1.按照
sudo apt-get install rt-tests
2.测试命令
sudo cyclictest -l100000 -m -a0 -t1 -p99 -i400 -h400 -q
非实时补丁 |
实时补丁 |
||
|---|---|---|---|
CPU 10% |
cyclictest |
Min Latencies: 1 us Avg Latencies: 7.4 us Max Latencies: 1256.6 us Histogram Overflows: 47 |
Min Latencies: 1 us Avg Latencies: 3 us Max Latencies: 111.8 us Histogram Overflows: 0 |
CPU 50% |
cyclictest |
Min Latencies: 1 us Avg Latencies: 2 us Max Latencies: 178 us Histogram Overflows: 0 |
Min Latencies: 1 us Avg Latencies: 2 us Max Latencies: 22.6 us Histogram Overflows: 0 |
CPU 70% |
cyclictest |
Min Latencies: 00001 us Avg Latencies: 2 us Max Latencies: 69 us Histogram Overflows: 0 |
Min Latencies: 1 us Avg Latencies: 2 us Max Latencies: 18 us Histogram Overflows: 0 |
CPU 100% |
cyclictest |
Min Latencies: 1.2 us Avg Latencies: 2 us Max Latencies: 139 us Histogram Overflows: 0 |
Min Latencies: 1 us Avg Latencies: 2 us Max Latencies: 24.8 us Histogram Overflows: 0 |