[FIXED] Performance Issue with Ballistic Missiles

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[FIXED] Performance Issue with Ballistic Missiles

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All Forums >> [New Releases from Matrix Games] >> Command: Modern Operations series >> Tech Support >> [FIXED] Performance Issue with Ballistic Missiles

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[FIXED] Performance Issue with Ballistic Missiles - 6/13/2020 9:39:42 AM

alphali

Posts: 82
Joined: 2/12/2016
Status: offline

Hii, while playing Salvo scenario from Chains of War I am having severe performance issues when launching ballistic missiles.
After some trial and error, I found the following:

- I can launch 5o ballistic missiles into Chinese mainland and the game runs smoothly.

- If I Launch even a dozen missiles into the Enemy territory and the performance will tank (one game second takes 20-30sec, more missiles makes much slower) after a couple of minutes of ingame flight time. CPU usage increase from 35-55% to over 85%. CPU clock drops from 3.45GHz to 2.8GHz

- Launching over 150 cruise missiles doesn't cause any problems.

It seems the issue happens when the missiles are close to enemy bases/defenses. Don't know if CMO is this more demanding than CMANO or if there is a bug in the calculation that's constantly running that's causing this.

Note also that running the same scenario on CMANO and the CPU rarely goes over 25% and lunching over 80 ballistic missiles the game runs nominally with no performance issues at 5x time compression.

I attached CMO scenario with the issue, the missiles are in flight. For me when the missiles are around 150nm from Okinawa the performance issue starts.

I updated the game yesterday with the latest release. Didn't try the scenario with previous releases.
Hardware: Laptop Lenovo Y520
i7 7700HQ
Ram 16GB
GTX1060 6gb

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< Message edited by Dimitris -- 7/11/2020 8:00:31 AM >

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RE: [Logged] Performance Issue with Ballistic Missiles - 6/15/2020 3:53:12 AM

Rory Noonan

Posts: 2816
Joined: 12/18/2014
From: Brooklyn, NY
Status: offline

Logged for investigation.

0013954

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RE: [Logged] Performance Issue with Ballistic Missiles - 6/16/2020 9:38:16 AM

Dimitris

Posts: 13282
Joined: 7/31/2005
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Hi,

This happens because the ABM engagement logics kick-in when the incoming BMs are detected, and these are very CPU-expensive.

We added some micro-optimizations in that loop for the next update release (B1147.3), please give it a go once it's out.

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RE: [Logged] Performance Issue with Ballistic Missiles - 6/16/2020 7:41:17 PM

alphali

Posts: 82
Joined: 2/12/2016
Status: offline

Hi Dimitris,

Noted I will test it with the next release. I thought this is could be the case but posted it here because there was a big performance difference between CMO and CMANO so I wanted to check.

I Will let you know when I test it.

(in reply to Dimitris)

Post #: 4

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All Forums >> [New Releases from Matrix Games] >> Command: Modern Operations series >> Tech Support >> [FIXED] Performance Issue with Ballistic Missiles

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