Microstutter - fact or fiction? Let's find out once and for all...

[Dr_Fartypants]

Updated the original post with the new url

 

[Dr_Fartypants]

Either way Im not sure I can trust the app to give us/me a realistic idea of what is really happening. Will be epic fun to run mind... ill get on it when im home.

My programming skills might be crap (well, they are - no question about it), but the calculation algorithm is mathematically sound I guarantee you. I give an explanation of how it works in the readme IIRC, so check it out and if you have any questions I'll try to better explain.


On another note - looks like we're seeing some great results with the 4870x2. Sub 10% values are pretty damn good for any multi-GPU setup, so it's good to see drivers properly addressng the issue now. What driver version were you using, CreAtiv3?

edit - I see you were using the 9.1 drivers missed that, sorry.

 

[Dr_Fartypants]

I think the hiccups you witnessed with F.E.A.R. 2 was the autosave feature, that causes a slight stutter on any machine.

That shouldn't appear in the index, even if it does interrupt gameplay - the largest 2% of local frametime variations are culled to avoid exactly these kinds of infrequent paging/loading based issues. The frametime variation has to be at least fairly consistent in order to contribute to the index.

The idea was to examine the degree of microstutter only, rather than other kinds of longer timescale stutter.

 

[Dr_Fartypants]

Oh, no, that's not what I meant. I was trying to get across the short 'hiccups' he described were probably attributed to that (the autosave), although in retrospect it was a little off topic.

Ah - okay, sorry