Messages in this thread | | | Date | Sat, 9 Aug 2008 09:02:28 -0400 (EDT) | From | Steven Rostedt <> | Subject | Re: [PATCH 0/5] ftrace: to kill a daemon |
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On Sat, 9 Aug 2008, Bodo Eggert wrote:
> Steven Rostedt <rostedt@goodmis.org> wrote: > > On Sat, 9 Aug 2008, Andi Kleen wrote: > >> Steven Rostedt <rostedt@goodmis.org> writes: > > >> > I'm stubborn, I want to get it right _and_ keep it fast. > >> > >> For me it would seem better to just not use two part 5 byte nops > >> instead of adding such hacks. I doubt there are that many of them > >> anyways. I bet you won't be able to measure any difference between the > >> different nop types in any macro benchmark. > > > > I wish we had a true 5 byte nop. The alternative is a jmp 0, which is > > measurable. > > Did you try short jumps? (0xeb 0x03 0x?? 0x?? 0x??)
What would those last three bytes be?
-- Steve
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