GTX2660Ti Posted January 20, 2021 Posted January 20, 2021 (edited) Today I run the first training lesson of the Su-25T in the latest DCS 2.5.6 openbeta on a new installed windows 10 with new installed DCS. I discover that the CPU fan rpm is not stable and that is because the CPU usage is not stable. So the CPU fan is causing very decent noise. Turning on the vsync in game on, regardless of the unsteady CPU usage, the fps is fixed at 60 with no stutter. Concerning that there is no optimization for DCS in multi-threading, I am so confused. Sorry for so poor English. Edited January 20, 2021 by fox2012
fab.13 Posted January 22, 2021 Posted January 22, 2021 Hello If dcs run smooth with no stutter, then everything is OK, dcs is not the problem Cpu need depends of dynamic script, and there are a lots ! If cpu usage stay under 80% during all flight, your machine answer to charge is good First Check temparature of your cpu, your cooler system may have a problem or box may be under ventilated Check about windows background process while rpm is high
Eldur Posted January 22, 2021 Posted January 22, 2021 How can DCS use 60% on 12 threads while being single threaded? I never ever see more than 25% on my quadcore without HT, which kinda makes sense.
Rudel_chw Posted January 22, 2021 Posted January 22, 2021 1 hour ago, Eldur said: How can DCS use 60% on 12 threads while being single threaded? Actually, the Ryzen 3600 is a six core processor, the other 6 are by hyperthreading ... I disabled the HT feature because on my machine DCS run about 3-5% faster with HT disabled. Here you can see that only 2 cores are heavily loaded (DCS uses one thread for the sim and a second one for sound): The HT, at least on my motherboard, is disable on the BIOS, and its called "SMT Mode": If you use heavily multithreaded applications, like Cinema 4D, then you are better off not disabling the HT, but I use my PC mainly for DCS. For work: iMac mid-2010 of 27" - Core i7 870 - 6 GB DDR3 1333 MHz - ATI HD5670 - SSD 256 GB - HDD 2 TB - macOS High Sierra For Gaming: 34" Monitor - Ryzen 3600 - 32 GB DDR4 2400 - nVidia RTX2080 - SSD 1.25 TB - HDD 10 TB - Win10 Pro - TM HOTAS Cougar Mobile: iPad Pro 12.9" of 256 GB
fab.13 Posted January 23, 2021 Posted January 23, 2021 (edited) DCS is written with high level langages It use stack librairies and api that can use threads... Windows OS use threads to make your machine what you ask. And DCS ask a lot ! Edited January 23, 2021 by fab.13
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