[LITMUS^RT] kernelshark

[Glenn Elliott]

Has anyone tested kernelshark since the Litmus rebase?  I am having trouble visualizing trace data.

I use the command "trace-cmd record -e sched:* -e litmus:* -e timer:*" to capture data.  I get about 60MB of trace data for 60 seconds of execution time (5 real-time tasks on a 4 CPU system).  I can convert the binary trace data to text using "trace-cmd report".  The resulting text shows that I have captured the desired events, including those from Litmus.

However, when I try to visualize the data in kernelshark, a few events are drawn at the origin of the timeline (see attached), but nothing else is drawn.  I've gone as far as rebasing rt-kernelshark on to the upstream kernelshark.  The problem persists.  (We can discuss incorporating these updates once this problem gets ironed out.)  I've also tried capturing data using various versions of trace-cmd (the distro's, rt-kernelshark's, and upstreams).

Comments?  Suggestions?

Thanks,
Glenn
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