Memory Management
These settings allow you to optimize application RAM usage.
If these settings are enabled, Workspace Environment Management (WEM) calculates how much RAM a process is using, and the minimum amount of RAM a process needs, without losing stability. WEM considers the difference as excess RAM. When the process becomes idle—usually when the application is minimized to the Task Bar—WEM releases the process’s excess RAM to the page file, and optimizes the process for subsequent launches.
When applications are restored from the Task Bar, they initially run in their optimized state but can still go on to consume additional RAM as needed.
WEM optimizes all applications that a user is using during their desktop session in a similar way. If there are multiple processes over multiple user sessions, all RAM that is freed up is available for other processes. This increases user density by supporting a greater number of users on the same server.
Enable Working Set Optimization. Forces applications which have been idle for a configurable time to release excess memory until they are no longer idle.
Idle Sample Time (min). Time for which an application must be idle before it is forced to release excess memory. During this time period, WEM calculates how much RAM a process is using, and minimum amount of RAM a process needs, without losing stability. The default value is 120 min.
Idle State Limit (percent). The percentage of CPU usage under which a process is considered to be idle. The default value is 1%. Citrix do not recommend using a value above 5%: otherwise a process being actively used can be mistaken for an idle process, resulting in its memory being released.
Exclude Specified Processes. Allows you to exclude processes from memory management by name (for example, notepad.exe).
Note that WEM does not optimize application RAM usage for the following system processes:
- rdpshell
- wfshell
- rdpclip
- wmiprvse
- dllhost
- audiodg
- msdtc
- mscorsvw
- spoolsv
- smss
- winlogon
- svchost
- taskmgr
- System Idle Process
- System
- lsass
- wininit
- msiexec
- services
- csrss
- MsMpEng
- NisSrv
- Memory Compression
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