• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Heap memory usage question
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Heap memory usage question


  • Subject: Re: Heap memory usage question
  • From: Martin Samm <email@hidden>
  • Date: Tue, 31 Aug 2010 15:55:47 +0100


looks like regular (3-hourly) garbage collection (or threshold based).

do you have any tools to drill in and see what object instances are on the heap?
do you have any background processes running?

On 31 August 2010 15:44, Pascal Robert <email@hidden> wrote:
Hello everyone,

Two weeks ago, we started using Nagios to check and graph heap memory usage, and I see something strange : every 3 hours, heap usage goes from 30 MB down to 12 MB!  I also saw that behavior when using JConsole in preparation for my WOWODC presentation. In fact, heap usage goes up to 30 MB over the 3 hours, and goes down back to 12 MB. This app is doing nothing, the only requests coming in are the JMX queries, so I find it a bit strange that usage is growing.

BTW, the hole in the graph is normal, Nagios is not pulling anything between 11pm and 4:30am.


 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden



--
Martin Samm
Aetopia Ltd
+44 (0) 28 9099 8767
____________________________________________________________________________
Aetopia Ltd is a limited company registered in Belfast, Northern Ireland,
with registration number NI053321, having its principal place of business
(and postal address) at ECIT Institute, Queens Road, BELFAST BT3 9DT
and registered office at 1, Lanyon Quay, BELFAST BT1 3LG

 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

References: 
 >Heap memory usage question (From: Pascal Robert <email@hidden>)

  • Prev by Date: Re: Heap memory usage question
  • Next by Date: WOWODC 2010 recordings
  • Previous by thread: Re: Heap memory usage question
  • Next by thread: WOWODC 2010 recordings
  • Index(es):
    • Date
    • Thread