1.执行perf命令报错:
WARNING: perf not found for kernel 5.4.0-79
You may need to install the following packages for this specific kernel:
linux-tools-5.4.0-79-generic
linux-cloud-tools-5.4.0-79-generic
You may also want to install one of the following packages to keep up to date:
linux-tools-generic
linux-cloud-tools-generic
2.报错原因
linux系统无法找到linux-tools-5.4.0-79-generic的工具安装包
3.解决:可以使用其他版本替代即可
使用linux-tools-5.4.0-91-generic替代linux-tools-5.4.0-79-generic版本
安装:
# sudo apt install linux-tools-5.4.0-91-generic linux-cloud-tools-5.4.0-91-generic
# sudo apt install linux-tools-generic linux-cloud-tools-generic
perf命令位置
# cd /usr/lib/linux-tools/5.4.0-91-generic
# sudo rm /usr/bin/perf
# sudo ln -s /usr/lib/linux-tools/5.4.0-91-generic/perf /usr/local/bin/perf
# sudo perf top