Re: Perf record format portability

[Steven Rostedt]

On Wed, 2012-05-16 at 11:59 -0300, Arnaldo Carvalho de Melo wrote:

> Steve,
> 
> 	Was the kernel trace events infrastructure designed with that in
> mind? I.e. cross analysis? I must be missing something here, still
> ENOCOFFEE :-\

Yes, the libparsevents library was design for this from day one. That's
why trace-cmd data file can be run on an ARM and read on x86, or PPC, or
whatever. I did all my development testing against 32bit, 64bit and big
and little endian. This was the case from the beginning.

-- Steve

> 
> 	When doing cross arch event analisys I tested:
> 
>         PERF_TYPE_HARDWARE                      = 0,
>         PERF_TYPE_SOFTWARE                      = 1,
>         PERF_TYPE_HW_CACHE                      = 3,
> 
> Not:
> 
>         PERF_TYPE_TRACEPOINT                    = 2,
>         PERF_TYPE_RAW                           = 4,
>         PERF_TYPE_BREAKPOINT                    = 5,
> 
> - Arnaldo


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