mkfs.erofs is a user-space tool to create erofs filesystem images.erofs是华为为了增强安卓性能提出的自研文件系统,其内核文档提到用户态工具:The following git tree provides the file system user-spacetools under development ...阅读全文
最近在提交cpufreq patch,稍微有点逻辑改动的Rafael都要你test, test。有个改动涉及setpolicy driver,要验证,第一印象就是用qemu。让我们来看下如何搭环境(initrd=ramdisk):my linux server(xeon) for building can not access internet,also vb under...阅读全文
参考4.9内核,还是先看文档描述:IntroductionSome CPUs support a functionality to raise the operating frequency ofsome cores in a multi-core package if certain conditions apply, mostlyif the whole chip i...阅读全文
参考4.9,CPUFreq即CPU Frequency scaling或者CPU performance scaling,允许你运行时改变CPU clock speed.文档路径: ./Documentation/cpu-freq/,先来看几个概念:Some CPU frequency scaling-capable processor switch between va...阅读全文