Messages in this thread | | | Date | Wed, 29 Mar 2006 14:29:59 +0200 | From | Ingo Molnar <> | Subject | Re: PI patch against 2.6.16-rt9 |
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* Thomas Gleixner <tglx@linutronix.de> wrote:
> Btw, your get/put_task proposal adds two atomic ops. Atomic ops are > implicit memory barriers and therefor you add two extra slow downs > into the non conflict case.
i'm not that worried about this - the atomic ops are for already cached cachelines, any sane CPU ought to execute them close to full speed. (x86-ish cpus certainly do)
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