[g__day (Matthew)]

Well my dual boot is working fine, all device drivers for Windows 11 Pro installed and according to device manager - no issues. All Windows 11 Pro updates applied fine.

A pleasant surprise - the RAID 0 NVMe PCIE based drive created as a dynamic disk under WIndows 10 Pro appears and works fine under Windows 11 Pro - I wasn't suspecting that - total win! CrystalDiskMark shows about 8,000MB/sec read write speeds - so all good.

But under my Astrophotography suite (PixInsight) - set up the same way under Win 10 and 11 - Win 10 is almost twice as fast (a lot higher CPU utilisation under the benchmarks) and the swap file - my RAID arrays scratch directory shows 3 times the throughput under Windows 10 and Windows 11 - which is frankly wierd - off to research this!

I checked each set up has the same swap file point (the RAID array) the same number of shares and the same number of read and write threads. I also ensured under Windows 11 Pro that xisf file types and PixInsight.exe and the QT web engine exe were all added to Win 11 Virus and Security exclusions.

So I am trying to see why Win 11 is processing CPU at 50% of the rate of Win 10 (all 36 cores are utilised - just to a lower extent) and why I/O throughput is a third that of Win 10.

Puzzling...