Do you use an SSD in your system? Know you very much doubt a harddisk is to blame for the stutters, but as far as I know textures get loaded an unloaded into the cache as they are needed. So unless you have a very large pagefile and lots of RAM AND CLOD is using it all instead of filling to a max of say 2GB before reusing it it seems to me as the most obvious reason for making the CPU wait.

Just asking because I built a new pc recently with CLOD installed on a Crucial C300 SSD and am experiencing no stutters whatsoever and other people with SSD's seem to experience little to no stutters aswell.

If you dont have a fast HDD but do have 6+ Gig of Ram you can just disable your page file altogether. It´s what I did and it works fine.

Salute Frederico! - hope this finds you well. Some of this testing reminded me of that :)

All the best,

Gunny

I'll try that, if I get more RAM. Right now I'm at 4GB. Thanks. I'm off on work trave for a few days - as soon as I get back.

Thanks

Gunny

No SSD, system disk is 10,000 rpm.

Important to say here, many tracks had no or very little stutter. When I play the game - versus test a high load performance track - I don't have a lot of stutter complaints.

If you look back at my results - many times the lowest fps in tracks is 14-to-18 with no or minimal stutter. Repeated playbacks and some initial playback - always eventually show it in a random manner.

By random I mean - at different spots on the track. Sometimes the stutter occurs when the attacking 110's are viewed from the perspective of the Hurricanes waiting to take off - sometimes it occurs a low load points on the track - it's random.

The pauses can also be very short and sometimes as long as 2-3 seconds. This is a problem with execution, which I'm sure will be nailed down soon.

When you guys are saying you have found solutions that have no stutter - Do you mean normal execution of the Simulator - or do you mean repeated playback of "The Black Death" track? Two different conditions.

Try 7 sequential playbacks of "The Black Death" track without restarting CoD. If you get through that with no Minimum FPS less than 10 fps and I'm pretty sure you have found a solution. I had one or two examples in a week of testing - in which I had 4 or 5 consecutive runs with minimum FPS of 14fps or above. However, the rub is that after both those episodes, when I tried to re-run the next 5 runs with the same settings after restarting CoD - the stutters returned.

Thanks

Gunny

Being essentially ignorant on this kind of thing how does a person go about doing this? I have Win7 64bit and 8gb of RAM.

I have to basically do this out the top of my head since the laptop I am has the language set to Portuguese :P

Warning here though, only do this if you have plenty RAM (in your case this shouldnt be a problem at all). This is of course totally reversible should you not like it after all.

Right here goes:

Go to Control Panel -> System & Security -> System -> Advanced Settings (left side of panel, run as admin) -> Advanced panel -> Go to top tab there and pick definitions -> You will see a tab with three options (Visual Effects, Advanced and one other) -> Pick Advanced -> Virtual Memory -> Change -> Untick the Automatically set the pagefile folder thingy -> Select the No PageFile thingy -> Profit.

Sorry for the somewhat vague walkthrough but it should get you there.

Regards.

S!

I run both SSD and without pagefile. No problems so far. Great testing Gunny. I had no probs with the 3D clocks after I overclocked my card a whopping 5MHz :D Let's see what the patch will do..

It's my opinion that the stutters don't come from the HDD (maybe there are exceptions). I've tested the game on a HDD (7200) and on 3 very fast SSD's in a RAID 0 array (which is probably bottlenecked by the controller or bus). It's my experience that it makes totally no difference in stuttering. Thereby I have to say that my stutters are mostly mild.

I agree with TUSA/TX-Gunslinger that it has probably something to do with the code of the game. On the moments that you see a short heavy drop in FPS you see a simultaneous (more or less) drop in CPU utilization. Normally CPU utilization should increase when a game has lots to process.

Hi all,

Thanks for testing!

BTW, what tool did you use to measure the GPU utilization?


Leo "Apollo11"