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Quad core lags issue


CountFuzzball

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I know this has been brought up time and time again, but I'm running a Quad Core @ 2.3Ghz (Intel Q8200) paired with 4 GB of RAM and a ATI Radeon 7750 HD 1GB video card, running Windows 7 32bit. And I'm getting about 10-17 FPS when looking at a bunch of NPCs in towns and such. Also noticed this happen with the DB sanctuary (might be a lightng issue).

 

I'm running the latest versions of UOP/UOISP/UOMP, amongst a few other armour/weapon mods.

I've checked and seen via the task manager that while Oblivion is only using at max 2 cores (I enabled the various multithread tweaks in the ini that are floating around), they aren't being used very effeciently (1 core is only being used to about 60-70% of its total capacity, whilest the other is being used like to 25-30% of its capacity), despite me changing the priority of Oblivion.exe to 'Realtime'.

 

So, is the single threaded oblivion seriously not able to push enough graphical data to my graphics card in time? It seems rather damn unlikely, I would've presumed..

Edit: Indeed, I don't get these kind of lags in even with a modded Fallout 3 (still getting crashes, but that's a different topic for a different forum). If I enter Megaton, which has got a lot more NPCs milling about that say, the IC Market, I can't help but wonder if FO3 is somehow more 'optomised' than Oblivion.

Edited by CountFuzzball
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It's not actually the graphics card but the CPU usage that is slowing the game down. NPCs in particular use a lot of CPU and the problem gets a lot worse during combat. (Shameless plug: If combat framerates are unbearable, I made a mod to fix that.)

 

Oblivion requires clock speed more than anything else. That's why Oblivion may actually run better on a Pentium 4 with a very high clock speed than a modern multi core CPU with a lower clock speed.

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Would comparisions of engines (Oblivion vs Fallout 3) be A Bad Thing? I mean, I see the exact same CPU usage with Fallout 3 (one core mostly utilised, the other not so much), but I'm running that (mostly) at around 50-60FPS the entire time, no hitches or slowdowns (except loading a new cell in a worldspace sometimes, but that's just my HDD), with everything turned up to max, graphically (vanilla FO3 graphics at least). Would I hazard a guess that the engine as a whole (Graphics rendering, AI/NPC pathing etc) in Oblivion isn't as optimised?

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What kind of frame rates do you get with a new game and no mods loaded? It's close to effortless for a poorly written mod to cause performance problems.

 

Also have you been through an online tweak guide for Oblivion? A few of these guides are very informative.

Edited by TheMastersSon
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