linux-kernel - Re: ftrace function-graph and interprocessor interrupts

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Date:	Wed, 24 Sep 2014 14:49:41 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	"Elliott\, Robert \(Server Storage\)" <Elliott@...com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
	"Jens Axboe \<axboe\@kernel.dk\> \(axboe\@kernel.dk\)" 
	<axboe@...nel.dk>, Christoph Hellwig <hch@....de>
Subject: Re: ftrace function-graph and interprocessor interrupts

"Elliott, Robert (Server Storage)" <Elliott@...com> writes:

> The function-graph tracer marks some interrupt handler functions
> with ==========>  and <========== labels.

I'm not sure the marking is really that useful. Isn't it always obvious
from the function names where an interrupt starts/end?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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