Hi, I'm trying to implement flame graph support using v8's cpu profiler. The flame graph tool needs to do a full backtrace including non-js frames and provide the symbols for the frames generated by v8.
I've been taking a look into how the cpu profiler works. Essentially it comprises of a cross-platform ticker/stack walker and a cpu profile generator. For my needs the aggregated data in the cpu profile doesn't have enough information (or I misunderstand what is logged here). I know that v8 is taking backtraces. We don't get backtraces for every sample, for example, if there is currently no js entry frame or if we are currently in GC, but for the most part v8 is actually collecting full backtraces on an interval. What I am looking to do is to manually handle the cpu-profiler samples so I can build a flame graph. I just want each raw backtrace with the C++ and js frames left in tact. Ideally I want to see the v8 GC frames too but I'd like to start with being able to dump each raw stack frame with annotations for the javascript frames. For any of you who might have some experience with the profiler, do you have any recommendations for how to go about doing this? ~Matt -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
