SC4 CPU Options - a DLL Plugin that configures the CPU core count and priority.

[Null 45 3,087]

This plugin combines the functionality of the SingleCPU and CPUPriority plugins in a single DLL, and adds the ability to set the CPU priority without using a command line argument.

If the -CPUCount and/or -CPUPriority command line arguments are present, those values will be used in place of the plugin's default options. When those command line arguments are not present, the plugin will configure SC4 to use 1 CPU core and the CPU priority specified in the configuration file.

This plugin is incompatible with 3rd-party launchers that set a CPU priority, it will override the CPU priority setting they set when starting the game.

Download: https://community.simtropolis.com/files/file/36120-sc4cpuoptions/

Source Code: https://github.com/0xC0000054/sc4-cpu-options

System Requirements

• Windows 10 or later

The plugin may work on Windows 7 or later with the Microsoft Visual C++ 2022 x86 Redistribute installed, but I do not have the ability to test that.

Installation

1. Close SimCity 4.
2. Copy SC4CPUOptions.dll and SC4CPUOptions.ini into the Plugins folder in the SimCity 4 installation directory.
3. Configure the plugin settings, see the Configuring the plugin section.

Configuring the Plugin

1. Open SC4CPUOptions.ini in a text editor (e.g. Notepad). Note that depending on the permissions of your SimCity 4 installation directory you may need to start the text editor with administrator permissions to be able to save the file.

2. Adjust the settings in the [CPUOptions] section to your preferences.

3. Save the file and start the game.

Settings Overview

Priority is the CPU priority that the game will use, the default is AboveNormal. The supported values are listed in the following table:

Priority Value	Notes
High
AboveNormal
Normal	The default value for a process, unless the parent process has a different value.
BelowNormal
Idle
Low	An alias for Idle.

Troubleshooting

The plugin should write a SC4CPUOptions.log file in the same folder as the plugin.
The log contains status information for the most recent run of the plugin.

	If you would like to make voluntary contributions to support me in continuing to create more content for SimCity 4, I accept donations via PayPal: https://paypal.me/0xC0000054
	Thanks to the few people who have donated to me.

[Membrillo 56]

Hi, zip file does not contain the ini file.

[Null 45 3,087]

37 minutes ago, Membrillo said:

Hi, zip file does not contain the ini file.

Fixed in version 1.0.1.

[Kel9509 1,476]

It's funny how after many years, I get back into the game this year.  Everything I read said to use a launcher, and then I learned to use the command line arguments.  Now I use the DLLs since they're much simpler and actually fix parts of the game like 32 bit mode in fullscreen.  

Anyway, this is all to say thanks very much for all your incredible work!

[Null 45 3,087]

Release version 1.0.2, which changed the processor affinity restriction to only apply to SC4's threads.

This may improve performance for things like GPU drivers.