Not support non-systemwide perf result

[Molin-L]

In the document, it gives an example of command, which works great:

perf record -a -F 999 -g ./my_program > perf.data

But in most case, I don't have sudo privilege, which means I cannot use -a to perf systemwide events. Also the size of systemwide result is really large. Currently speedscope doesn't support this kind of format. Do you have any plans on this? Thanks!

[jlfwong]

Hey @Molin-L, do you have an example of a profile generated by perf that speedscope won't import? I'm not deeply familiar with the various formats output by perf, so it's totally possible this is accidentally broken

[birojnayak]

@jlfwong I followed the command here https://github.com/jlfwong/speedscope/wiki/Importing-from-perf-(linux) , got the txt file, but speedscope complaining about "format not supported" .

[jlfwong]

@birojnayak Can you please provide the resulting file that doesn't import? I suspect there's some variation in versions of system dependencies here