On Tue, 20 Dec 2005, Nicolas Pitre wrote: > > Sure, and we're now more costly than the current implementation with irq > disabling. Do the timing. It may be more instructions, but I think it was you yourself that timed the current thing at 23 cycles, no? Special registers are almost always slower than nicely cached accesses (and they all basically will be). Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Follow-Ups:
- References:
- [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: Ingo Molnar <[email protected]>
- Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: Zwane Mwaikambo <[email protected]>
- Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: David Woodhouse <[email protected]>
- Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: Ingo Molnar <[email protected]>
- Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: Nicolas Pitre <[email protected]>
- Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: Nick Piggin <[email protected]>
- Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: Nicolas Pitre <[email protected]>
- Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: Nick Piggin <[email protected]>
- Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- From: Nicolas Pitre <[email protected]>
- [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- Prev by Date: Re: [Alsa-devel] 2.6.15-rc6: boot failure in saa7134-alsa.c
- Next by Date: Re: Light-weight dynamically extended stacks
- Previous by thread: Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- Next by thread: Re: [patch 04/15] Generic Mutex Subsystem, add-atomic-call-func-x86_64.patch
- Index(es):