Messages in this thread |  | | Date | Mon, 18 Nov 2013 10:38:13 -0800 | Subject | Re: [PATCH v6 3/5] qrwlock: Enable fair queue read/write lock | From | Linus Torvalds <> |
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On Mon, Nov 18, 2013 at 10:34 AM, Andi Kleen <andi@firstfloor.org> wrote: > > FWIW unfair can be faster in some cases. It depends on the workload.
Sure. And we've never cared before.
When we switched over to the ticket spinlocks, we actually had *numbers* about how the old unfair spinlocks could be faster. And we still didn't leave a "unfair spinlocks" option. Because it didn't make sense.
Why would it make sense here?
Linus
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