I have this doubt because I watched some videos from a year ago talking about the need to use Process Lasso to increase performance in games. However, recently Windows 11 had an update that improved the performance of Ryzen processors just by using the Windows Game Bar. Will I get a performance boost using Process Lasso, or would it be a waste of time? I have a 7900XTX and 32GB of 6000MHz RAM, everything is stock, and I mostly play VR racing games. Sometimes I have stutters from the CPU frametime.
Windows Game Bar is not necessarily the best choice when the performance is not optimized. It is better to research other solutions.
Quote from: IzaiahConn on April 23, 2025, 12:48:00 AMI have this doubt because I watched some videos from a year ago talking about the need to use Process Lasso to increase performance in games. However, recently Windows 11 had an update that improved the performance of Ryzen processors just by using the Windows Game Bar. Will I get a performance boost using Process Lasso, or would it be a waste of time? I have a 7900XTX and 32GB of 6000MHz RAM, everything is stock, and I mostly play VR racing games. (https://cocmods.com/) Sometimes I have stutters from the CPU frametime.
Process Lasso is usually unnecessary on modern Windows 11 builds and Ryzen CPUs, and in most cases will not provide a meaningful performance boost—especially after the recent Windows scheduler + Game Bar / Game Mode improvements.
But depending on why you get CPU frametime spikes, there are a few cases where Process Lasso can still help.
Quote from: IzaiahConn on April 23, 2025, 12:48:00 AMI have this doubt because I watched some videos from a year ago talking about the need to use Process Lasso to increase performance in games. However, recently Windows 11 had an update that improved the performance of Ryzen processors just by using the Windows Game Bar. Will I get a performance boost using Process Lasso, or would it be a waste of time? I have a 7900XTX and 32GB of 6000MHz RAM, everything is stock, and I mostly play VR racing games. Sometimes I have stutters from the CPU frametime.
Windows 11 already does a good job with Ryzen scheduling, especially with Game Mode on. Process Lasso might help slightly with CPU frametime stutters in VR, but don't expect a big boost—more fine-tuning than a must-have.
Ryzen scheduling is already handled well by Windows 11, particularly when Game Mode is enabled. Process Lasso is more fine-tuning than a must-have, however it might assist a little with CPU frametime stutters in VR.
Process Lasso improves the user experience when using Windows 11 programs. Process Lasso may be unnecessary for most games, particularly those that are not CPU-sensitive in terms of frametime. It is completely common to improve the VR gaming experience.
Quote from: robertwarden on December 10, 2025, 08:27:28 AMProcess Lasso is usually unnecessary on modern Windows 11 builds and Ryzen CPUs, and in most cases will not provide a meaningful performance boost—especially after the recent Windows scheduler + Game Bar / Game Mode improvements.
But depending on why you get CPU frametime spikes, there are a few cases where Process Lasso can still help.
is there any benefit to using Process Lasso just to keep background junk (like Chrome or RGB software) off the cores my game is using? Or does Game Mode already handle that isolation well enough these days?
Quote from: robertwarden on December 10, 2025, 08:27:28 AMProcess Lasso is usually unnecessary on modern Windows 11 builds and Ryzen CPUs, and in most cases will not provide a meaningful performance boost—especially after the recent Windows scheduler + Game Bar / Game Mode improvements.
This has not been my experience.
With a 9950X3D, the default behavior is to forcibly park half of the CPU cores when a game has focus, so it -and all other running processes- are forced onto CCD0 (Cache CCD).
This avoids the issue of a game running on the wrong CCD, or having its processes split across both (which can have a big performance penalty).
But half of your CPU is now sitting idle, as though it was a 9800X3D.
It also means the cache is under contention from other processes.
My preference is to disable Windows' Game Mode/Balanced power plan, and set the UEFI to prefer the Cache CCD, rather than Frequency/Driver control.
I then have Process Lasso assign CPU Sets 16-31 (CCD1) to all processes with a wildcard (*). And a CPU Set of 1-15 (CCD0) for games.
This keeps the game running on CCD0 with all of the Cache to itself, and all of the background processes run on CCD1 rather than sharing those resources.
I find that it has little impact on average frame rate, but keeps minimums a good deal higher.
I have also set up another power plan using ParkControl, which is a copy of the High Performance plan, but with core parking set to 50%.
If necessary, this plan can be assigned to a game process to replicate Game Mode's behavior of running everything on CCD0.
The only drawback is that it applies the entire time the process is running, not only when it has focus.