HPjmeter 4.2 User's Guide

thrown, 156
uncaught, 44
uncaught statistics, 109
excessive compilation
set threshold for alert, 106
exclude=, 18
exclusive method clock time, 68
exclusive method CPU time, 68
exclusive time, 69
F
features, 12
and JVM version, 197
file
-Xeprof options, 62
compressed, 39
default location for allocation sites statistics data, 198
default location for Xverbosegc data, 198
directories, 15
open, 97
File menu, 97, 140
file name suffix
.eprof, 65
.hpjmeter, 39
.hprof.txt, 65
.vgc, 85
files
comparing, 71, 86
filter
adding to change monitoring preferences, 102
allocation statistics, 127
classes, 18
creating sets of packages or classes, 103
editing to change monitoring preferences, 102
exceptions, 120, 121
excluded packages, 18
JMX MBean list, 53
JMX server list, 53
JVM agent options, 18
packages, 18
performance overhead, 187
specifying, 102
thread list in JMX viewer, 52
types, 36
finalizer
queue growth, 115
find
Edit menu, 140
mark item for, 178
search patterns, 179
firewall
connecting through to node agent, 24
working with tunnel, 21
format
hprof options, 65
full garbage collection, 87
full GC, 81
comparing percent time spent, 90
old, 88
old expanded, 88
other, 88
percent time spent, 90
permanent, 88
print data, 80
start from JMX viewer, 51
train algorithm, 88
G
garbage collection
activity summary, 89
average allocation rate, 90
average ideal allocation rate, 90
basic concepts , 87
comparing percent time spent, 90
displays, 157
duration alert, 110
duration metric, 124
duration of measurement, 89
event metric, 123
events, 90
forced by JVMTI, 88
heap monitor, 122
HotSpot VM, 123
memory leaks, 43
object persistence, 87
options and corresponding metrics, 85
pauses, 40
percent time spent, 90
percent time spent in full, 90
percentage of spent, 41
percentage spent, 125
program time at beginning, 82
reasons for, 81
residual bytes, 90
size of object allocation, 82
start from JMX viewer, 51
stop-the-world duration, 82
Summary tab, 88
system details tab, 90
System.gc(), 41, 88
thread state, 74
time spent, 90
total bytes allocated, 90
type, 84
types, 87
garbage collection data
understanding the use of, 80
viewing, 31
garbage collection viewer
behavior, 116
tabs, 116
GC data
-Xloggc, 84
-Xverbosegc, 80
-Xverbosegc options, 80
collecting, 80
collecting with zero preparation, 83
GC event
206 Index