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Well a very interesting latest release by PixInsight v1.9.3 that delivers 20% - 30% performance improvements (real world and benchmarks) by the thoughtful practice of once-off performance monitoring of worker thread numbers and sub threads spawned versus image sizes. This is basically individual machine processor optimisation of thread counts for the most frequent and heavily used tasks in PI.
So once this update is installed and all patches download - users are encouraged to run processor optimisation to create their own optimisation profile. On 8 core machines this takes about 10 - 12 minutes. On my 36 core Xeons it took about 35 minutes. One user with a 48 core / 96 thread platinum Xeon took 70 minutes running this diagnostic.
So the end results - my best run with PI version 1.9.2 scored 17,523 - my best run with version 1.9.3 is 20,207 - a very nice improvement for free!
Interesting to see one the third fast rig on the table - a Platnium Xeon 8558P - its scores top out as 21,473 for Windows and 55,091 on Linux - with exactly the same gear.
Makes me ponder would my scores would also increase by 2.5x (giving me the 4th fast rig benchmarked - vs my current 28th ranking!
Lastly a user with Xeon Gold 6536N processor has not only mapped Windows vs Linux scores - he has done this with 8, 16, 24, 32, 48, 56 and 64 threads - and the surprising conclusion is this (and most recent versions of) PI scale very poorly with increased processor threads in Windows - but on the exact same gear performance scales linearly in Linux - pointing to a poor Windows coding issue!
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