摘要： 摘要：和很多linux内核子系统一样，static tracepoint有很多层次，其中某个层次都展示给不同层次的开发者来满足他们的不同需求。关于linux tracepoint的详细信息，我们可以在linux内核文档Documentation/trace/tracepoints.txt和samples/tracepoints这两个地方找到。大致来说，对tracepoints本身的定义是第一个层次，一般只有内核开发者才会定义这些tracepoints；trace event是第二个层次，用于debug；第三个层次就是perf这些内核测试工具，他们调用底层的trace events来监控系统内核 阅读全文

摘要： The Linux tracing APIs are a relatively new addition to the kernel and one of the most powerful new features its gained in a long time. Unfortunately the plethora of terms and names for the system can be confusing, so in this follow-up to my previous post on the proc connector and socket filter, I’l 阅读全文