CoreDirector is a free Windows application to keep specified processes from being scheduled to efficient cores (E-cores), thereby keeping them on performant cores (P-cores). This allows improved performance in demanding applications, such as gaming, audio production, video editing, and streaming.
A common challenge with heterogeneous CPUs like Intel 12th+ generation is the occasional undesirable scheduling of threads onto the efficient (E) cores, hampering their performance. This issue arises because most applications have not been, and may never be, updated to provide explicit instructions to the scheduler regarding their thread load types, leaving Windows to rely on educated guesses. But don’t worry, until applications are updated to specify where their threads belong, CoreDirector has you covered!
CoreDirector has several methods of enforcement, from gently disabling Efficiency Mode on target processes, to the little stronger CPU sets, to strict CPU affinities. See the ‘Options’ menu to choose the method(s) of enforcement.
Although we recommend using our more powerful Process Lasso software for this purpose, we have made this simplified tool freely available to the community. CoreDirector will run fine alongside Process Lasso.
Users may also be interested in our ParkControl software, which now offers power plan heterogenous scheduling settings.
Use /S for silent installation. Valid return codes are:
0 = success (including over-top replacement)
1 = failure or user abort
v220.127.116.11 – Nov 22, 2023
(1) Add dark mode (1) Move Methods submenu to top level, pending further Options additions (3) Minor cosmetic and string changes (5) Add matching against full process path (11) Add version to lower left (13) Add enforcement status static text control
v18.104.22.168 – Nov 17, 2023 – Initial Release