How To Fix 1 CORE 100% Grinding Issue ?

On August 23 2017 18:17 FataLe wrote:
Thought SC2 engine was notorious for relying on single threaded performance and utilizing minimal cores.

A lot of tech reviewers copped flack for using it as a cpu benchmark cos it's horrible.

On August 23 2017 18:31 FueledUpAndReadyToGo wrote:
SC2 not using multiple threads is normal. What do you mean with unplayable exactly?

I'm not an expert in any means, but if I understand correctly it's a deterministic game engine in which the same inputs will always give the same outputs. That's why we have very small replay files, because they can just save only the inputs and the resulting gameplay can be generated on the fly and be exactly the same still. If they would somehow split it in multiple threads, timing issues might occur with one thread being done faster than the other and thus outputs could be different.

On August 23 2017 20:28 R1CH wrote:
If your fan goes crazy due to only a single thread running at 100% then you may have overheating problems.

On August 23 2017 21:23 R1CH wrote:
This is normal for single threaded games. You can try turning on vsync to cap the FPS.

On August 25 2017 21:31 Cyro wrote:
Menu may be odd thing, sc2 simulation (vast majority of the CPU load) runs on one thread though. With the game being very graphically light and CPU heavy the ST CPU perf is limiting performance almost all of the time

On August 26 2017 05:46 saltis wrote:


Why Blizzard did go this way ? They neutered the longevity of the game bu putting a cap on game's performance.

On August 26 2017 23:14 R1CH wrote:

It's exceptionally difficult to make a lockstep game engine multithreaded. All clients need to resolve the simulation in the same order to avoid desynchronization.

On September 03 2017 13:53 Electricalthicket wrote:
Hi Saltis,

Welcome back. I am a long time TL lurker and I created this new account just because I saw your post ... I have your solution. To anyone else with this problem, don't thank me, thank this youtube video creater! I am running a 1st gen i5 650 3.2 ghz and after using the tip on this youtube video I have had success running sc2 with 0 stutter while trying with a few different video cards using this CPU.

I found that by (setting affinity) after initial load up of SC2 it helped my pc run SC2 without the 1 - 3 second freeze at the menu, without the freeze at ~ 35 seconds in the game and without the freeze every 5 minutes during 1v1 ladder. My suggestion is to try this and start with low settings with medium texture and slowly turn up the graphics to see if your CPU can handle higher graphics. Low / med textures is what makes my game run like the original sc2 without this lag freeze / bug whatever you want to call it that started during HoTs or Lotv. I know this freeze wasn't around in Wings for me.

Follow the instructions on this video I found on youtube and it works! You can fast forward the beginning he starts slow. You just need to open sc2 minimize go to task manager every time you load SC2. I have been doing this for over 3 months on my pc daily with no adverse effects. Sometimes I will keep sc2 running for hours so I don't have to minimize and set affinity again. No Lag, no stutter, no freeze. Now on the comments of the youtube video or on forums you may hear this is not good for a computer? If a computer engineer in this forum says this will harm your machine in any way I am not arguing their expertise, however let me tell you I have had no adverse effects on my machine in any way by doing this. This machine is my SC2 machine if it doesnt run SC2 the way I want then... then what do I do with it? Hope this answers your question. Good luck see you on the ladder.