Re: [GIT PULL 0/6] perf/ebpf basic integration

From: Ingo Molnar
Date: Thu Oct 29 2015 - 08:18:15 EST



* Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> wrote:

> Hi Ingo,
>
> Please take a look at the changeset comments, I made notes in most of
> them, this seems like a nice cutoff point to allow basic testing, by
> developers, for the very basic integration of perf and ebpf, i.e. we can,
> having a ready built object file, built with clang, be able to use it as a perf
> event, passing it via -e/--event, etc.
>
> Wang has lots more in the queue and I intend to work on them till I get
> all reviewed/tested/merged, i.e. in the immediate future.
>
> What do you think? Fair to get his smaller gulp now? Or do you want to
> get it all the way with the code to get a .c file, build it, etc, that is
> ready, but I haven't reviewed/tested yet?
>
> Ah, this is on top of what I sent to you via perf/core yesterday.

I'm fine with this, as long as this bit:

> More work is about to be reviewed, tested and merged that will allow the whole
> process of going from a .c file to an .o file via clang, etc to be done
> automagically. (Wang Nan)

... is treated as the primary interface. Very few people will use object files, so
we need to integrate the whole life-time workflow, from instrumentation source
code to perf output.

Thanks,

Ingo
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