Comments on: Summarizing Java heap utilization with jmap http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/ Blog O' Matty Fri, 04 May 2012 19:58:36 +0000 hourly 1 By: Fabian http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-830939 Fabian Thu, 01 Dec 2011 06:57:48 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-830939 Very Informative.Explained Well. Tried -heap option on windows,never got any out put.But this worked with Linux. C:\Oracle\Middleware\jdk160_21\bin>jmap.exe -heap 'grep java' Usage: jmap -histo (to connect to running process and print histogram of java object heap jmap -dump: (to connect to running process and dump java heap) dump-options: format=b binary default file= dump heap to Example: jmap -dump:format=b,file=heap.bin Very Informative.Explained Well.

Tried -heap option on windows,never got any out put.But this worked with Linux.

C:\Oracle\Middleware\jdk160_21\bin>jmap.exe -heap ‘grep java’
Usage:
jmap -histo
(to connect to running process and print histogram of java object heap
jmap -dump:
(to connect to running process and dump java heap)

dump-options:
format=b binary default
file= dump heap to

Example: jmap -dump:format=b,file=heap.bin

]]> By: Jacques Le Roux http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-830860 Jacques Le Roux Mon, 21 Nov 2011 11:41:00 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-830860 Thanks, I was unware of the live sub-option. Thanks, I was unware of the live sub-option.

]]> By: Mohammed Ali http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-829858 Mohammed Ali Thu, 23 Dec 2010 20:44:31 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-829858 Thanks a bunch, very informative. Jmap did worked for me to quickly view some leaks under jdk1.6 and tune app accordingly... Thanks a bunch, very informative. Jmap did worked for me to quickly view some leaks under jdk1.6 and tune app accordingly…

]]> By: Ajay http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-829636 Ajay Mon, 25 Oct 2010 14:23:59 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-829636 Excellent!!! Very informative, Thank you!! Excellent!!!
Very informative, Thank you!!

]]> By: Tanya http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-670140 Tanya Thu, 19 Feb 2009 15:35:43 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-670140 Excellent article. Thanks! Excellent article. Thanks!

]]> By: andrew http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-474396 andrew Fri, 13 Jun 2008 18:13:03 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-474396 Jmap is part of the 1.6 JDK but does not have the -heap option and doesn't seem to work when using histo (at least for me, I always get a message about not having enough space) Jmap is part of the 1.6 JDK but does not have the -heap option and doesn’t seem to work when using histo (at least for me, I always get a message about not having enough space)

]]> By: Joseph http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-121568 Joseph Mon, 05 Nov 2007 04:42:34 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-121568 buddy this is quite useful..thanks. Keep posting these useful things. buddy
this is quite useful..thanks. Keep posting these useful things.

]]> By: Rainer Jung http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-119138 Rainer Jung Fri, 02 Nov 2007 20:01:37 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-119138 jmap is part of the 1.6 JDK for Windows. jmap is part of the 1.6 JDK for Windows.

]]> By: dean ross-smith http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-118660 dean ross-smith Mon, 29 Oct 2007 19:43:50 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-118660 thanks for this. We have a couple of ejb's that "leak" memory and this should help keep track of things. thanks for this. We have a couple of ejb’s that “leak” memory and this should help keep track of things.

]]> By: Balkrishan Nagpal http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/comment-page-1/#comment-118327 Balkrishan Nagpal Mon, 29 Oct 2007 10:46:37 +0000 http://prefetch.net/blog/index.php/2007/10/27/summarizing-java-heap-utilization-with-jmap/#comment-118327 This is a quite a useful information as i was not aware of such a tool, but i would rather love to see the description about some tool which is also available for windows, because i think jmap is only available for linux users. So if you can please provide the information about a tool which has more or less the same functionality as the jmap but is also available for windows. I would also like id you can provide the link for that tool for downloading. This is a quite a useful information as i was not aware of such a tool, but i would rather love to see the description about some tool which is also available for windows, because i think jmap is only available for linux users. So if you can please provide the information about a tool which has more or less the same functionality as the jmap but is also available for windows. I would also like id you can provide the link for that tool for downloading.

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