On 10 Oct 2014, at 17:40, Scott Ribe <scott_r...@elevated-dev.com> wrote:

> On Oct 10, 2014, at 10:20 AM, Kevin Meaney <k...@yvs.eu.com> wrote:
> 
>> Now I've been optimizing to maximize throughput for processing image files...
> 
> Things depend VERY much on what exactly you're doing. I've optimized for 
> throughput of processing image files, and found that number of worker threads 
> equal to logical CPUs maximized throughput. (Except for 2 logical cores, 
> where 3 threads were fastest, go figure...)

Just redid my speed tests, which made me realize I'd remembered wrong. The 
shape drawing tests got max results with 4 worker threads but that for 
processing image files I get an extra 40% throughput with 8. (Scaling 4 
megapixel image files at high quality by 0.4 and exporting to jpeg, I get a 
throughput of 82 images a second compared to 55 with 4)

Faulty memory is faulty.

Kevin


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