Re: [PATCH] tracing: Cleanup the convoluted softirq tracepoints
From: H. Peter Anvin
Date: Tue Oct 19 2010 - 19:10:44 EST
On 10/19/2010 04:05 PM, Steven Rostedt wrote:
>>
>> JMP/Jcc does have a consumer -- the IP -- and actually measuring shows
>> that it is much, much worse than NOP and other dummy instructions.
>
> But how does JMP vs Jcc compare?
>
*As far as I know* they're the same, except of course that a direct JMP
never mispredicts.
-hpa
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/