Prasad, Someone has already posted a snippet [1].
[1] https://gist.github.com/prasanthj/48e7063cac88eb396bc9961fb3149b58 пн, 18 февр. 2019 г. в 17:23, Павлухин Иван <vololo...@gmail.com>: > > Hi Prasad, > > As far as I remember offheap memory allocated with use of Unsafe is > not reflected in Native Memory Tracking report. You are right that > documentation is not verbose about reported categories [1]. It might > be the case that memory allocated by ByteBuffer.allocateDirect falls > into "internal" category. You can check it out by writing an example > application using ByteBuffer.allocateDirect. > > [1] > https://docs.oracle.com/javase/8/docs/technotes/guides/troubleshoot/tooldescr022.html#BABHIFJC > > пн, 18 февр. 2019 г. в 16:04, Dmitriy Pavlov <dpav...@apache.org>: > > > > Hi. > > > > Please don't use posting to both dev/user lists simultaneously. > > > > If your question is not related to any contribution you are planning to do, > > then the user list is a better place to ask, because a possible answer may > > be interesting to all Ignite users. > > > > If you are going to fix any issue and would like to discuss a proposal, > > please use dev list. > > > > Sincerely, > > Dmitriy Pavlov > > > > пн, 18 февр. 2019 г. в 16:00, Prasad Bhalerao > > <prasadbhalerao1...@gmail.com>: > >> > >> Hi, > >> > >> I have set the off heap size to 500 MB and max heap size to 512 MB. > >> > >> My process is taking around 1.7 GB on Windows 10 as per the task manager. > >> So I decided to track the memory distribution using jcmd to find out if > >> there are any memory leaks in non-heap space. > >> > >> After pushing the data to cache I took the native memory summary using > >> jcmd tool. > >> > >> I am trying to understand in which of the following section, allocated off > >> heap memory goes? > >> > >> Does off heap come under "Internal" category? Can any ignite memory > >> expert help me with this? > >> > >> Oracle documentation does not clearly talks about it. I am also attaching > >> the native memory detail file. > >> > >> C:\Java64\jdk1.8.0_144\bin>jcmd.exe 16956 VM.native_memory summary > >> > >> 16956: > >> > >> Total: reserved=3513712KB, committed=2249108KB > >> > >> - Java Heap (reserved=524288KB, committed=524288KB) > >> > >> (mmap: reserved=524288KB, committed=524288KB) > >> > >> > >> > >> - Class (reserved=1127107KB, committed=86507KB) > >> > >> (classes #13259) > >> > >> (malloc=10947KB #17120) > >> > >> (mmap: reserved=1116160KB, committed=75560KB) > >> > >> > >> > >> - Thread (reserved=89748KB, committed=89748KB) > >> > >> (thread #88) > >> > >> (stack: reserved=89088KB, committed=89088KB) > >> > >> (malloc=270KB #454) > >> > >> (arena=391KB #175) > >> > >> > >> > >> - Code (reserved=254854KB, committed=30930KB) > >> > >> (malloc=5254KB #8013) > >> > >> (mmap: reserved=249600KB, committed=25676KB) > >> > >> > >> > >> - GC (reserved=29656KB, committed=29576KB) > >> > >> (malloc=10392KB #385) > >> > >> (mmap: reserved=19264KB, committed=19184KB) > >> > >> > >> > >> - Compiler (reserved=188KB, committed=188KB) > >> > >> (malloc=57KB #243) > >> > >> (arena=131KB #3) > >> > >> > >> > >> - Internal (reserved=1464736KB, committed=1464736KB) > >> > >> (malloc=1464672KB #40848) > >> > >> (mmap: reserved=64KB, committed=64KB) > >> > >> > >> > >> - Symbol (reserved=18973KB, committed=18973KB) > >> > >> (malloc=15353KB #152350) > >> > >> (arena=3620KB #1) > >> > >> > >> > >> - Native Memory Tracking (reserved=3450KB, committed=3450KB) > >> > >> (malloc=14KB #167) > >> > >> (tracking overhead=3436KB) > >> > >> > >> > >> - Arena Chunk (reserved=712KB, committed=712KB) > >> > >> (malloc=712KB) > > > > -- > Best regards, > Ivan Pavlukhin -- Best regards, Ivan Pavlukhin
