Subj : Re: reliability of setting thread priority
To   : comp.programming.threads
From : Joe Seigh
Date : Fri Feb 25 2005 08:10 am

On 25 Feb 2005 04:41:49 -0800, <gottlobfrege@gmail.com> wrote:

>
> No real problem, but a Win32 Mutex is about 5x slower than a
> criticalsection, and about 15x slower than using atomic exchanges.
> (Rough numbers)
>
> I had a real life case where there was possibly going to be 100s of
> these objects used, so speed matters.
>
> On the other hand, a would consider using a mutex for the portable
> version, if anyone thought that the priority setting stuff was
> problematic - correctness beats speed (almost) every time...
>
Spin locks for user threads don't scale well.  Your choice and
hopefully it's your problem and not ours.

-- 
Joe Seigh

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