On Fri, 8 Mar 2019 15:47:14 +0000 Tzvetomir Stoyanov <tstoyanov@xxxxxxxxxx> wrote: > Steven could describe it in more details, but we work on common > tracing platform - set of libraries, which will expose the tracing > functionality, currently available for trace-cmd and kernelshark only, > to any application. [ Just came back from SCaLE 17x conference ] Note, the libtraceevent is currently just a way to parse the data read by the Linux kernel trace events. The format files exist in the tracefs file system under events/<system>/<event>/format (e.g. events/sched/sched_switch/format). The library is used by trace-cmd, perf, powertop and mce utils. Currently, each has their own copy. We are working on making this into a shared library where the code no longer needs to be duplicated. There's also going to be an effort to create libftrace, that will take the functionality of trace-cmd and move it into a library, such that any tool can start ftrace tracing, and record data. But that's not going to happen until after we finish getting libtraceevent out. -- Steve
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