1.617.682.4508

Pythian Blog

The world discusses #Pythian on Twitter. Have a question? Use our hashtag and ask away.

Emergency

24x7 Support

Not a Pythian client but need help now? No problem. Click here.

Are you aware of an existing DBA opening or consulting requirement in your organization? Enter your email for a chance to win one year's access to Safari Books.

  

The Answer to Free Memory, Swap, Oracle and Everything

By: Christo Kutrovsky

Update 2007.12.19: This presentation is now available online here, including a comprehensive whitepaper.

I have submitted an abstract for my new presentation about linux/unix memory and Oracle to the Rocky Mountain Oracle Users Group for the Training Days in Denver on February 14-15, 2007. I pilot tested it at the Ottawa Oracle User Group in June. The feedback was good and since then I have kept developing the presentation. Soon to be submitted for HotSos 2007.

It reads:

  • Do I have enough memory?
  • Why is my free memory so low?
  • Am I swapping to disk?
  • Can I increase my SGA (db cache) size?
  • Can I add another instance to this server?
  • Are my system resources used optimally?

These are all questions that often haunt DBAs. This presentation is The Answer. It covers in detail the different types of memory, how to monitor memory and how to optimally use it with Oracle in mind. It explains how to effectively use tools such as “top”, “vmstat” and “/proc/meminfo”.

Multiple examples throughout the presentation demonstrate how certain actions on the database side cause different memory areas to be allocated and used on the OS side. The attendees will leave with good understanding of how memory is used on a Linux OS and should be able to apply this knowledge to optimally configure their servers.

3 Responses

  1. Doug Burns says:

    I’m looking forward to seeing that, if I get the chance ;-)

  2. Christo Kutrovsky says:

    I am glad it caught your attention :-)

  3. Tracey says:

    Is there any where i can view this, please? I always seem to come late to these sorts of issues :-)

Leave a Reply

Start NowWith Pythian - database design, management and emergency handling capabilities...

Pythian Blog

Connecting to Oracle with SQL Server 2005 x64
The quirks of connecting to Oracle from SQL 2005 64
more



Live Updates

pythian: Join us for a webinar June 4: Migrating to an Open Source DB Platform. Paul Vallee speaking. Register at
more



RSSTestimonials

  • Casey Dyke

    Database Team Manager Service Delivery and Applications , Telstra

    Pythian were recently engaged to take a lead role in a high end infrastructure build project at Telstra. Our requirements were a combination of... more