Wolf-Dieter Fink [https://community.jboss.org/people/wdfink] created the discussion "Re: How Can I monitoring java heap with jstat?" To view the discussion, visit: https://community.jboss.org/message/776961#776961 -------------------------------------------------------------- jstat is a console tool to monitor the JVM heap and GC. See the http://docs.oracle.com/javase/6/docs/technotes/tools/share/jstat.html documentation I often use 'jstat -gc PID <intervall>' -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/776961#776961] Start a new discussion in Performance Tuning at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]

Nikhil Mone [https://community.jboss.org/people/nikhilmone] created the discussion "Re: How Can I monitoring java heap with jstat?" To view the discussion, visit: https://community.jboss.org/message/778673#778673 -------------------------------------------------------------- You can also try below command that gives you detail of entire memory usage : ========================================= $ jmap -heap <Proces ID of your JVM> Attaching to process ID 29696, please wait... Debugger attached successfully. Server compiler detected. JVM version is 20.6-b01 using thread-local object allocation. Parallel GC with 4 thread(s) Heap Configuration:    MinHeapFreeRatio = 40    MaxHeapFreeRatio = 70    MaxHeapSize      = 1367343104 (1304.0MB)    NewSize          = 1310720 (1.25MB)    MaxNewSize       = 17592186044415 MB    OldSize          = 5439488 (5.1875MB)    NewRatio         = 2    SurvivorRatio    = 8    PermSize         = 21757952 (20.75MB)    MaxPermSize      = 268435456 (256.0MB) Heap Usage: PS Young Generation Eden Space:    capacity = 341966848 (326.125MB)    used     = 298634744 (284.80028533935547MB)    free     = 43332104 (41.32471466064453MB)    87.32856583805457% used    capacity = 56885248 (54.25MB)    used     = 56854136 (54.22032928466797MB)    free     = 31112 (0.02967071533203125MB)    99.94530743717598% used To Space:    capacity = 56885248 (54.25MB)    used     = 0 (0.0MB)    free     = 56885248 (54.25MB)    0.0% used PS Old Generation    capacity = 910884864 (868.6875MB)    used     = 71342136 (68.03716278076172MB)    free     = 839542728 (800.6503372192383MB)    7.832179325794572% used PS Perm Generation    capacity = 71303168 (68.0MB)    used     = 71145280 (67.84942626953125MB)    free     = 157888 (0.15057373046875MB)    99.77856804342831% used ========================================= -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/778673#778673] Start a new discussion in Performance Tuning at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]