????1.jps??????????????java???????linux?μ?ps????????????
????2. jinfo: ??????jinfo -flagPermSize 2208(?????)
jinfo -flag MaxPermSize 2208(?????)
C:UsersWILL>jinfo
Usage:
jinfo <option> <pid>
(to connect to a running process)
where <option> is one of:
-flag <name>         to print the value of the named VM flag
-flag [+|-]<name>    to enable or disable the named VM flag
-flag <name>=<value> to set the named VM flag to the given value
-h | -help           to print this help message
????3. jconsole 2208
?????÷?:
jconsole [ -interval=n ] [ -notile ] [ -pluginpath <path> ] [ -version ] [ connection ...]
-interval   ???????????????? n ??????? 4 ??
-notile     ?????????????????????????????????
-pluginpath ??? jconsole ???????????·??
-version    ???????汾
connection = pid || host:port || JMX URL (service:jmx:<protocol>://...)
pid       ?????????? ID
host      ??????????? IP ???
port      ???????????????
-J          ?????????? jconsole ?? Java ????????
???????????
????4. jstack  2208?г??????????????????????
C:UsersWILL>jstack
Usage:
jstack [-l] <pid>
(to connect to running process)
Options:
-l  long listing. Prints additional information about locks
-h or -help to print this help message