std.benchmark is in reviewable state

Robert Jacques sandford at jhu.edu
Tue Sep 27 00:08:31 PDT 2011


On Mon, 26 Sep 2011 13:20:01 -0400, Timon Gehr <timon.gehr at gmx.ch> wrote:

> On 09/26/2011 05:59 PM, Jonathan M Davis wrote:
>> On Monday, September 26, 2011 11:43:52 Robert Jacques wrote:
>>> Great, but MS still recommends benchmarking be done on a single core. And if
>>> MS thinks that is how benchmarking should be done, I think that's how we
>>> should do it.
>>
>> And how would you ensure that? Beyond having your application be single-
>> threaded, I'm not aware of any way to have any control over whether a
>> particular process is run on a single core or not. Generally, that stuff is
>> completely managed by the OS and the hardware and is outside the control of
>> the programmer. I'm not saying that there definitively isn't a way to ensure
>> that a process only runs on one core, but I'm not aware of one.
>>
>> - Jonathan M Davis
>
> There are API functions to do that on any reasonable OS.
>

Such as SetThreadAffinityMask, which I mentioned in my original post.


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