To enable dynamic IMS message queue performance tuning, preform the following steps in 
               		ESCWA:
               	 
            
            	 
             
               		
               - If started, stop your 
                  		  enterprise server region from the 
                  		  Control page. 
                  		
               
- In the menu bar, click 
                  		  Native. 
                  		
               
- In the navigation tab, expand 
                  		  Directory Servers, and then select your 
                  		  enterprise server region. 
                  		
               
- Click 
                  		  . 
                  		  
                  This opens the 
                     			 General Properties page.
                     		  
                   
- In the 
                  		  Configuration Information field, type 
                  		  [ES-Environment] and on a new line set the ES_TMC_AGGREGATE environment variable. For example, to disable flush operations: 
                  		  [ES-Environment]
ES_TMC_AGGREGATE=,D See 
                  		  Dynamic IMS Message Queue Performance Tuning for detailed descriptions of each ES_TMC_AGGREGATE environment variable option.
- Click 
                  		  Apply.