Hi,
It looks like Windows 8.1 uses less CPU cores in multiprocessing compared to that of Windows 7.1 !
For example when eight (8) simultaneous processes were started by a tested program with threads and each with active pipes for control messages and queues for data messages
Vista used all CPU cores, for example four(4) of four(4) available CPU cores
Windows 7.1 used all CPU cores, for example four(4) of four(4) available CPU cores
whereas
Windows 8.1. used mostly only two (2), sometimes a little bit third but never the fourth CPU core !
What is the reason to this ?
How to tune Windows 8.1 ?
Software is tested and provides detailed analysis of process, pipe, queue activities.
Results are ok.
Problem: Windows 8.1. performance is not as good as that of Windows 7.1 and Vista
Processes and thread are being activated in the same way as before.
Any tips more than welcome!