Use these steps to tune your z/OS® operating system to optimize WebSphere® Application Server performance.
VARY WLM,APPLENV=xxxx,QUIESCEThe following example shows the servant SYSPRINT DD output from the RPTSTG(ON) function.
. . . 0 HEAP statistics: Initial size: 83886080 Increment size: 5242880 Total heap storage used (sugg. initial size): 184809328 Successful Get Heap requests: 426551 Successful Free Heap requests: 424262 Number of segments allocated: 1 Number of segments freed: 0 . . . Suggested Percentages for current Cell Sizes: HEAPP(ON,8,6,16,4,80,42,808,45,960,5,2048,20) Suggested Cell Sizes: HEAPP(ON,32,,80,,192,,520,,1232,,2048,) . . .
. . 0 HEAP statistics: Initial size: 83886080 Increment size: 5242880 Total heap storage used (sugg. initial size): 195803218 Successful Get Heap requests: 426551 Successful Free Heap requests: 424262 Number of segments allocated: 1 Number of segments freed: 0 . . . Suggested Percentages for current Cell Sizes: HEAPP(ON,32,8,80,43,192,48,520,20,1232,5,2048,20) Suggested Cell Sizes: HEAPP(ON,32,,80,,192,,520,,1232,,2048,) . . .
. . 0 HEAP statistics: Initial size: 83886080 Increment size: 5242880 Total heap storage used (sugg. initial size): 198372130 Successful Get Heap requests: 426551 Successful Free Heap requests: 424262 Number of segments allocated: 1 Number of segments freed: 0 . . . Suggested Percentages for current Cell Sizes: HEAPP(ON,32,8,80,43,192,48,520,20,1232,5,2048,20) Suggested Cell Sizes: HEAPP(ON,32,,80,,192,,520,,1232,,2048,) . . .