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Java monitoring for the command-line, profiler included

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jvmtop 🍋

jvmtop (:lemon: flavor) is a lightweight console application to monitor all accessible, running jvms on a machine.
In a top-like manner, it displays JVM internal metrics (e.g. memory information) of running java processes.

 jvmtop (lemon flavor) 0.1.0   amd64  8 cpus, Linux 2.6.32-27, load avg 0.12

  PID MAIN-CLASS      HPCUR HPMAX NHCUR NHMAX    CPU     GC    VM USERNAME   #T DL
 3370 rapperSimpleApp  165m  455m  109m  176m  0.12%  0.00% S6U37 web        21
11272 ver.resin.Resin [ERROR: Could not attach to VM]
27338 WatchdogManager   11m   28m   23m  130m  0.00%  0.00% S6U37 web        31
19187 m.jvmtop.JvmTop   20m 3544m   13m  130m  0.93%  0.47% S6U37 web        20
16733 artup.Bootstrap  159m  455m  166m  304m  0.12%  0.00% S6U37 web        46

It does also include a CPU Console Profiler

 jvmtop (lemon flavor) 0.1.0 - 16:11:35,  amd64,  4 cpus, Linux 3.13.0-52, load avg 1.10

 Profiling PID 1397:        com.gu.contentapi.concierge.Start 

  13.03% (     5.99s) spray.httpx.encoding.DeflateCompressor.drain()
  10.35% (     4.76s) ....elasticsearch.common.netty.channel.socket.nio.Select()
   8.44% (     3.88s) scala.collection.AbstractTraversable.<init>()
   7.96% (     3.66s) ....gu.contentapi.concierge.util.JsonHelpers$$anonfun$re()

jvmtop (:lemon: flavor) is a convenient fork of jvmtop with additional fixes.

If you experience a problem please fill an issue

Requirements

  • JDK (JRE is not sufficient)

jvmtop has been tested with different releases of Oracle JDK, IBM JDK and OpenJDK on Linux, Solaris, FreeBSD and Windows hosts.

Documentation

Documentation

Installation

  • Download the most recent tar.gz archive in releases tab
  • Extract it
  • Run ./jvmtop.sh

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