LupinYonder Posted April 27, 2009 Share Posted April 27, 2009 (edited) Hi there. I recently got a second monitor and am running DSC on both with the ABRIS and Shval camera on the smaller right hand monitor. Now I've been playing around with my ATI CCC settings trying to find a sweet compromise between FPS and GFX. When I'm flying in uncluttered air space with few buildings I run a glorious 55-60fps ( with DCS max affinity and phantom monitor fix ) but I often get massive FPS spikes on some missions, with fps dropping down to 15 or even 5 fps for a few moments or longer, sometimes settling around 25fps. I have been trying to nail down what gfx setting ( AA, AF etc.. ) or game artefact is causing these huge slowdowns, I at first thought it was buildings but no, or possibly other Helis, don’t think so... Here is my system and my ATI CCC settings for your expert eyes ;-) and my ATI CCC settings 8X Anti Aliasing 8X Anisotropic Filtering Standard Catalyist AI Mipmap Detail lvl = Quality Wait for vertical refresh On Adaptive Anti Aliasing off Triple Buffering On and as is shown in my system specs my card is Over clocked but also heavy cooled, under full load it never gets above 55c My in game DCS Black shark Gfx settings are Textures = High Scenes = Medium Civ Traffic = Yes Water = Normal Visb Range = High Heat Blur = On Shadows = Full Resolution = 1920x1080 ( i also have a second monitor running at 1280X1024 ) Res of cockpit displays = 512 Any ideas where i might cure this FPS spike issue? Any help or suggestions would be greatly appreciated. Edited April 27, 2009 by LupinYonder Forgot to add ingame settings Link to comment Share on other sites More sharing options...
EtherealN Posted April 27, 2009 Share Posted April 27, 2009 Have you tested disabling the V-sync? I get a slightly higher occurance of stutters when I have that on, but end up pretty much having to use it due to the alternative being to figure out how to get rid of some really really nasty tearing while using TrackIR. [sIGPIC][/sIGPIC] Daniel "EtherealN" Agorander | Даниэль "эфирныйн" Агорандер Intel i7 2600K @ 4.4GHz, ASUS Sabertooth P67, 8GB Corsair Vengeance @ 1600MHz, ASUS GTX 560Ti DirectCU II 1GB, Samsung 830series 512GB SSD, Corsair AX850w, two BENQ screens and TM HOTAS Warthog DCS: A-10C Warthog FAQ | DCS: P-51D FAQ | Remember to read the Forum Rules | | | Life of a Game Tester Link to comment Share on other sites More sharing options...
LupinYonder Posted April 27, 2009 Author Share Posted April 27, 2009 (edited) I will try that but i doubt its the problem, thanks anyway. Will report back if this is a solution This did not solve the problem but a helpful fellow DCS player told me he had similar problems when running in windowed mode. Simple question = Can I run dual monitors in full screen mode to improve performance and cure these fps spikes? Edited April 27, 2009 by LupinYonder Link to comment Share on other sites More sharing options...
LupinYonder Posted April 29, 2009 Author Share Posted April 29, 2009 (edited) Massive FPS spikes Double post Edited April 30, 2009 by LupinYonder Double post Link to comment Share on other sites More sharing options...
Mxyzpylk Posted April 29, 2009 Share Posted April 29, 2009 (edited) I will try that but i doubt its the problem, thanks anyway. Will report back if this is a solution This did not solve the problem but a helpful fellow DCS player told me he had similar problems when running in windowed mode. Simple question = Can I run dual monitors in full screen mode to improve performance and cure these fps spikes? simple answer = No. Not in Vista anyway, not sure about XP. I think the spikes have something to do with ATI CCC. I was running ATITool and don't remember having FPS ups and downs. I can't get ATITool to work anymore so I had to switch to ATI CCC and that's when the problems arose for me. I wish someone had a simple fix to get ATITool working in Vista 64. Edited April 29, 2009 by Mxyzpylk added info Link to comment Share on other sites More sharing options...
LupinYonder Posted April 30, 2009 Author Share Posted April 30, 2009 (edited) Thats an interesting point, i could try DL'ing an ATI tuner program and copying my settings that im using with CCC and see if i get any improvements Ok, it was using multi monitor that was the culprit. I think because my main monitor is 24inch and my second is 17, my radeon 4870 512mb couldn't really handle it :-(. Now whether it was due to running in windowed mode or because of running two monitors I do not know but I will deff experiment again once the patch is out to see if that resolves anything. Edited April 30, 2009 by LupinYonder problem solved Link to comment Share on other sites More sharing options...
Washer UK Posted May 1, 2009 Share Posted May 1, 2009 For the resolutions you are using on the main screen 1920x1080 id guess that the ATI 4870 would want more than 512 meg of ram Q6600 3.2Ghz, 4G DDR2 1066, ATI 4870, x52, TrackIR 4, Vista 64 Link to comment Share on other sites More sharing options...
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