Last active
June 23, 2017 22:37
-
-
Save frsyuki/09469b9b868a390b0955f25bc4a53bfa to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
$ jmap | |
Usage: | |
jmap -histo <pid> | |
(to connect to running process and print histogram of java object heap | |
jmap -dump:<dump-options> <pid> | |
(to connect to running process and dump java heap) | |
dump-options: | |
format=b binary default | |
file=<file> dump heap to <file> | |
Example: jmap -dump:format=b,file=heap.bin <pid> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
$ jmap | |
Usage: | |
jmap [option] <pid> | |
(to connect to running process) | |
jmap [option] <executable <core> | |
(to connect to a core file) | |
jmap [option] [server_id@]<remote server IP or hostname> | |
(to connect to remote debug server) | |
where <option> is one of: | |
<none> to print same info as Solaris pmap | |
-heap to print java heap summary | |
-histo[:live] to print histogram of java object heap; if the "live" | |
suboption is specified, only count live objects | |
-clstats to print class loader statistics | |
-finalizerinfo to print information on objects awaiting finalization | |
-dump:<dump-options> to dump java heap in hprof binary format | |
dump-options: | |
live dump only live objects; if not specified, | |
all objects in the heap are dumped. | |
format=b binary format | |
file=<file> dump heap to <file> | |
Example: jmap -dump:live,format=b,file=heap.bin <pid> | |
-F force. Use with -dump:<dump-options> <pid> or -histo | |
to force a heap dump or histogram when <pid> does not | |
respond. The "live" suboption is not supported | |
in this mode. | |
-h | -help to print this help message | |
-J<flag> to pass <flag> directly to the runtime system |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment