linux-kernel - Re: [PATCH] module: ppc64 module CRC relocation fix causes perf issues

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Date:	Thu, 25 Jul 2013 08:34:27 +1000
From:	Anton Blanchard <anton@...ba.org>
To:	Scott Wood <scottwood@...escale.com>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Neil Horman <nhorman@...driver.com>,
	<linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] module: ppc64 module CRC relocation fix causes perf
 issues


Hi Scott,

> I'm not really sure what it's supposed to look like when "perf  
> annotate" works.  It spits a bunch of unreadable[1]
> dark-blue-on-black assembly code at me, all with "0.00 :" in the left
> column.
> 
> Oh, wait -- some lines have "100.00 : " on the left, in  
> even-more-unreadable dark-red-on-black.
> 
> Apart from the annoying colors, is there anything specific I should
> be looking for?  Some sort of error message, or output that actually
> makes sense?

Thanks for testing! Ben, I think the patch is good to go.

Anton
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