linux-kernel - Re: [PATCH 00/18] [ANNOUNCE] Dynamically created function based events

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Message-ID: <CAM9d7cjF=Tc00XGmR=Bx91mexnh2svcU=U0mj5qQmQv_kx5GMw@mail.gmail.com>
Date:   Sun, 4 Feb 2018 11:37:40 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        linux-trace-users <linux-trace-users@...r.kernel.org>,
        acme <acme@...nel.org>, Clark Williams <williams@...hat.com>,
        Jiri Olsa <jolsa@...hat.com>, bristot <bristot@...hat.com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Jonathan Corbet <corbet@....net>
Subject: Re: [PATCH 00/18] [ANNOUNCE] Dynamically created function based events

On Sun, Feb 4, 2018 at 6:30 AM, Alexei Starovoitov
<alexei.starovoitov@...il.com> wrote:
> On Sat, Feb 03, 2018 at 04:08:24PM -0500, Steven Rostedt wrote:
>> OK, so no new development in this was wanted? So the entire talk about
>> getting tracepoints into vfs and scheduling wasn't needed?
>
> I don't know who wants tracepoints in vfs.

AFAIK some people wanted to get some info (e.g. filename) from vfs.


>> Not if you are working in the embedded space and only have busybox as
>> your interface.
>
> did you notice bpfd project that does remote kprobe+bpf into an android phone?
> or phone is not an embedded space?

I never tried bpfd yet but it looks promissing.
It'd be nice to have such setup working on a typical yocto environment.
Anyway, I'd say that android phone is different that typical embedded
systems. :)

Thanks,
Namhyung