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PostPosted: Mon Jun 19, 2017 10:50 am 
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Joined: Mon Jun 19, 2017 10:31 am
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Hello all,

I have an Oculus VR application that uses the Bullet Physics library to add physics (I didn't write it) and it can be turned on/off as needed.

With Bullet Physics off, the application can hit required 90FPS for optimal VR viewing.

But with Bullet Physics turned on, the application can only manage about 40-50FPS which is not good for motion in VR viewing.

I need to speed up the frame rates with Bullet Physics enabled so my questions are...

1. Does Bullet Physics engine run only on a single CPU core or is it able to use multiple cores?

2. What is the current best (not Xeon) Intel CPU to buy to speed up Bullet Physics processing?

I realise second question depends on the answer to the first question, as certain Intel CPUs have much better single core performance than others, so if Bullet Physics is only able to use a single core, then the fastest performing single core Intel would appear to be best wouldn't it?
eg. Intel Core i7-7700K @ 4.20GHz https://www.cpubenchmark.net/singleThread.html

But if it is multicore capable then maybe the fastest multicore non-Xeon Intel in chart ie. Intel Core i7-6950X @ 3.00GHz? https://www.cpubenchmark.net/high_end_cpus.html

Those charts do not appear to have any of the new Intel Core i9 Skylake-X processors series so I can't tell if they are better than above older models either.

Any ideas?


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PostPosted: Mon Jul 03, 2017 9:40 am 
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Joined: Mon Jun 19, 2017 10:31 am
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And the new i9 series has been add to single/multicore benchmarks, and overall for both this new high-end i9 appears to be best, being at near top of lists for both single and multicore, but it is stupid price of almost £1000 for one of them (not including the new motherboard+RAM needed for new X299 chipset)

https://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i9-7900X+%40+3.30GHz&id=3035


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