wenwst的专栏

准备使用perf工具分析代码的性能，发现perf安装的方式有好几种。安装信赖1.安装flexflex如果不安装，后面在编译的时候，会出现信赖报错。报错的内容类似以下：Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'Warning: Kernel ABI header at 'tools/in.

在Ubuntu中，使用sudo apt install xxx的时候，提示以下错误：E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?解决方法：找出apt