Mailinglist Archive: opensuse-kernel (77 mails)

[Matthias Hopf <mhopf@xxxxxxx>]

On Dec 02, 09 19:12:03 +0100, Takashi Iwai wrote:
> > any particular reason why approximately all tracers in the kernel are
> > not compiled as modules by default in 2.6.32rc?
> > In particular, I'm interested in the sysprof tracer, because I use
> > sysprof every now and then. I checked the config, and all
> > CONFIG_*_TRACER are not set.
> >
> > I don't see the reasoning behind that ATM, as the according tracer can
> > only be loaded and activated by root.
>
> I also don't know the reason, but doesn't perf work enough for you?

Not even close. You need to recompile for perf, it only profiles a
single application, output is unreadable.

oprofile also doesn't work. While in theory it should be better, I
couldn't get it working correctly (stack traces > 2 entries), there was
no (zero) support for getting it working, and output is unreadable.

sysprof just flies, is trivial to use, has a very reasonable GUI tool,
and is good enough.

Matthias

-- 
Matthias Hopf <mhopf@xxxxxxx>,  SuSE R&D,  Zimmer 2.2.6,  Tel. 74053-715
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