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

doesn't work on my pc - a dos window appears for a fraction of a second then dissapeared when I try to run the exe file.

*EDIT* oops used the wrong csv file
 
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Another thread revival from the old school.

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.
 
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CreAtiv3 said:
Ill take a look at this when I get back tonight.

Shall test World at War, HL2 EP2 and FEAR2 just to mix it up a bit!
Click to expand...

Can you add COD4 to that mix if you have it, since last time a 'Micro-Stutter' argument came up that was the example being used.
 
And the results are in!

Please note the following settings were used for all tests
1920x1200 Resolution
4x AA set in game, Edge Detect set in CCC & Adaptive AA enabled
16x AF
Maxed graphics options for each title
Vertical Refresh set to off
No special console tweaks used in any game to boost performance, just vanilla settings.

F.E.A.R 2
Started recording at the first conact with mercs.
Couple of hiccups were noticeable before and after the shoot-out but I think this is when the game was calling for NPCs to enter the scene and scripts being ran rather than graphical stutters.

Left 4 Dead
Started recording from the beginning of the No Mercy campaign for roughly 1min. Felt smooth as silk to play and yet this appears to have the highest MS Index...?

COD 5: World at War
Recorded a multiplayer CTF match for roughly 1min.
Felt very smooth with and without Frame Limiting.
Note: Dual Graphics option enabled in Game Options.




Cannot seem to find my COD 4 disk anywhere. Thinking about it I may have lent it to someone about a year ago :eek:

Hope you find these results interesting!
 
I think the hiccups you witnessed with F.E.A.R. 2 was the autosave feature, that causes a slight stutter on any machine.
 
Ah yes perhaps dint think of that, would make sense as it did seem to only happen before and after some action!

Forgot to mention im running the latest 9.1 drivers on Windows 7 x64. Rest of the rig can be found in my signature.
 
Very good results for COD5, an interesting thread tbh. Hopefully more people will submit their results :)
 
Looking at some of the earlier results it would seem that the problem has been vastly improved upon.
Still... more results with different driver versions should be interesting.
How about P45 at dual X8 vs X48 at dual X16.
 
COD5 "Relentless" level, everything at max in game settings 1920x1080. Started benchmark when black background faded at level start. fps went down to 19 when tank blew up. both cards are oced at 700/1000.

cod5kf9.jpg



Fear 2 - max in game settings, both cards at stock since I can't run this oced without driver stop responding every few seconds. Benchmark started at the start of level when you wake up next to the helicopter. exe renamed to Fear.exe for cf support. It paused for a second every now and again probably due to autosave as suggested.

fear2cc4.jpg



L4D - Both cards at stock. Benchmark started while playing online co-op during an intense battle. Didn't really notice when the fps dropped to 8 due to all the zombie killing!

l4dtm3.jpg


results are quite bad I guess it's just the limitations of P45.
 
VinceB1 said:
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.
Click to expand...

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

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.
 
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