[LLVMdev] RFC: Instrumentation based profiling file libraries (original) (raw)

Diego Novillo dnovillo at google.com
Thu Mar 13 05:02:36 PDT 2014

On Wed, Mar 12, 2014 at 6:54 PM, Justin Bogner <mail at justinbogner.com> wrote:

- This library could either be (A) a standalone library for reading and writing the instrumentation based profiling format, or (B) a library that includes readers and writers for various profiling formats. Notably, (B) would make it a good place for a sample based profile reader, which currently lives in lib/Transforms with its usage.

Agreed. Option (B) seems like the best alternative.

- If we go with (A), a name like Profile may be too generic, so something more specific like InstrProfile might be better. For (B), Profile or ProfileData seem best.

Either Profile or ProfileData sounds good to me. Slight preference for ProfileData. I could move the reader code from lib/Transforms/SampleProfile into this library, which could then be used into standalone sample profile readers/validators/converters.

Where do you envision having the standalone tools? Say a converter from one profile format to another, or a writer tool. Some tools will have slightly more twisted dependencies (converting from Perf data, for example requires quite a bit of other code).

Diego.

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