Re: [boost] A fast-pathed rw-mutex algorithm for Boost...

From: Peter Dimov (pdimov_at_[hidden])
Date: 2006-10-24 21:29:45

Howard Hinnant wrote:

> I don't know how to quantify it, but there is nothing quite like the
> warm fuzzy of seeing this on your screen:
>
> writ thread 1 at 62%
> writ thread 2 at 63%
> writ thread 3 at 59%
> writ thread 4 at 58%
> read thread 5 at 62%
> read thread 6 at 55%
> read thread 7 at 64%
> read thread 8 at 75%

You are right in principle but the above isn't a good result for a 
multi-core. The read threads should have an advantage proportional to the 
number of cores since they can run in parallel. I'll try to embelish my test 
with something that measures starvation.