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
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Matthias Hopf