> I wish we had a true 5 byte nop. The alternative is a jmp 0, which is 
quoted text
> measurable.  This is replacing mcount from a kernel compile with the -pg 

Scary usage.  How much is the difference? 

BTW a good way to get most of that back would be to not use frame 
pointers if you have them enabled ;-) Unfortunately recently
the "select FRAME_POINTER"s keep creeping all over so far too many kernels
suffer from this slow mode now :-/

-Andi
--
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/