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From: Howard Hinnant (hinnant_at_[hidden])
Date: 2008-02-08 17:29:06

On Feb 8, 2008, at 5:14 PM, Peter Dimov wrote:

> Howard Hinnant:
>> Here are results (dating around 3 years ago):
>> In order: 63 seconds.
>> try/back off/without yield: 47 seconds.
>> try/back off/with yield: 34 seconds.
> With Alexander Terekhov's "swap-based mutex", I'm not seeing a
> significant
> difference between the versions with and without yield. The penalty
> likely
> comes from spin-waits in lock() (which is why they're evil).

Hey, would you mind running against lock-in-order? I'd love to
confirm what I've been preachin'. ;-) Or if you see lock-in-order as
better, then better for me to hear it sooner rather than later...


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