Subj : Re: Lock Free -- where to start
To   : comp.programming.threads
From : Michel
Date : Thu Sep 29 2005 06:53 pm

Joe Seigh wrote:
> That would be for a small number of threads.  If probability of lock 
> contention
> for a single thread is .001 in your example, then for 100 threads it's 
> about
> ..100, 200 threads about .199, 1000 threads about .630, etc...
> 
> Lock-free is about scalability, not the actual overhead.   If you know your
> application will never experience high contention or you don't care about
> scalability then you should stick with conventional lock based solutions.


Wouldn't you say there is a design or structural problem having 100-1000 
threads contending for the same lock in any somewhat ordinary 
application at the server or the client side? Wouldn't context switching 
drain the performance anyways?

/Michel

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