DServer.exe CPU load raised significantly with 3.001 update

[SAS_Storebror]

Dear Devs,

 

Could you please have a look at the CPU load caused on dedicated servers after updating to 3.001?

On our test server we've been running a "work in progress" mission for months.

There's quite some AI on it, like 20-30 cars and tanks, about 10-15 fighters in the air and lately we have added two flights of 4 bombers on each side.

All of this together, on version 2.012 caused a CPU load of 10-15% on our dedicated server (measured on a single core, i7-4770 @3.8 GHz, 32GB RAM, Windows Server 2016).

After updating to 3.001 we have found that with nothing but AAA active, the CPU load is at ~15% already.

When the first fighters and cars/tanks spawn, it goes up to 35-50% and once the bombers spawn we are at 75-80% CPU load, which means we still have an SPS of 50.0 +/- 0.3, but with a tick delay in the range of 15 the game is right on the edge of not being playable anymore.

 

Today I've made a very simple test mission where there is nothing but airfields to spawn on, and one of our 4-bomber-flights on each side.

The bombers will get activated 1 minute after first player spawns.

You will see that exactly at that time, the CPU load will increase significantly, beyond anything we knew with the old version 2.012.

In our case, CPU load of this very simple mission with just 8 AI planes prowling the skies will go up from 0-2% to 25-30% right at the moment when the AI planes are activated, and it stays like that. Tick delay will be ~7-8.

For comparison, a similar testing on version 2.012 "back in the days" showed something like 1-3% CPU usage and no change in tick delay when 8 AI bombers spawned.

 

This issue makes it more or less impossible to serve AI crowded missions on dedicated servers at the moment, and I have a feeling like it could be related to the FPS issues reported for the campaign system too (where AI has to be handled on client side then).

 

Test mission can be found attached to this post.

 

Cheers!

Mike

CPU Load Test 3.001 v1.zip

Edited March 15, 2018 by SAS_Storebror
wordings corrected

[SAS_Storebror]

I take the liberty to *bump* this thread because the issue is definitely there and it's a severe issue to Multiplayer Server hosting.

Unfortunately I have the feeling that no one cares.

 

Cheers!

Mike

[mochuelorojo]

Well, I really hope that someone does care in the future because it’s pretty difficult to believe that nothing is happening. Career mode is unplayable for me after update and I’m clearly above recomended specs... I  think there’s something wrong with AI and CPU usage too. I hope devps care about it and sort it out

[KG200_Volker]

Fellow pilots, give the devs some time, new patch includes many changes and challenges for the team, I don’t think that they don’t care.

 

Indeed the same thing is noted by us, the Dserver with 3001 got worse, the same mission loaded on our server is not just heavier but unplayable. 

[SAS_Storebror]

Thanks for confirming the issue Volker.

I don't want to push the devs, just had the feeling that this issue might go un-noticed because the only reply to it before was along the lines of "oh, cars and tanks work just fine" so if the devs weren't aware of it, they might have thought that it was just me.

 

Cheers!

Mike