Friday Nov 06, 2009

New Blog location

Since I will likely have to transition blogging systems after the Oracle acquisition, I decided to avoid the trouble and just begin using WordPress now. I intend to use this site for future posts regarding Oracle and Sun performance... and I will likely repost material as well.

My new Oracle/Sun performance blog is:

I already made a post about the value of predictable IO latency with Exadata V2. I hope you enjoy it and this new site.

Take care,

Friday Jun 13, 2008

Raising money for Pancreatic cancer research and giving it your best

I am not one to post much in the way of personal information on my blog, but this exception is worth your time.

My son Hayden (13 years old) is participating in his first Olympic triathlon this year (1.5k swim / 28mi bike/ 10k run). He decided to make it a fund raiser for Pancreatic cancer in memory of his Grandmother who suffered from this most lethal of cancers. If you would like to help in anyway, please use this link to donate directly to the Lustgarten Foundation. The Lustgarten Foundation is a foundation dedicated to advance the scientific and medical research related to the diagnosis, treatment, cure and prevention of pancreatic cancer.

Below is an excerpt from Hayden's Letter writing campaign:

Did You Know…

• Pancreatic cancer is the deadliest of all major cancers.
• It kills 50% of those afflicted within 6 months and 97% of those afflicted within 5 years.
• There is no prevention, early diagnoses, or cure.
• 10% of all pancreatic cancers are inherited.
• In 2008 there were 37,680 new cases of pancreatic cancer in the U.S.
• In 2008 there were 34,290 deaths from pancreatic cancer in the U.S.

I chose to raise money for pancreatic cancer research because of its alarming death rate, and because my beloved grandmother, Nancy, passed away from this disease in mid August 2001, having been diagnosed only two months prior. Please help me to raise money for pancreatic cancer research.

Wednesday May 14, 2008

42 -- the anwser to the ultimate question

I just finished reading an excellent blog entry by Andy Harrison that discusses the importance of a good problem statement. After working many problems with shady problem definitions, I will forward this to entry to all violators... So if we can't agree on the problem, we can all agree on the answer :)

Tuesday Oct 16, 2007

Sun server reboot best practices

I had a recent interaction with a customer regarding how often to "reboot" Sun servers. There is no official policy at Sun regarding rebooting - mainly because we sell enterprise class machines. The intent of an enterprise class machine is to stay up at all cost. Our enterprise class servers have the ability to add and remove memory, IO, and CPU without a reboot. I know it is common practice to reboot "windows" based machines on a regular schedule, but this simply does NOT apply to Enterprise class Sun servers.

For sake of discussion, I will post what I think our server reboot policy should entail.

Purposed Sun Server Reboot Policy:

"Only reboot Sun servers when installing SW or HW that requires a reboot. It is not necessary to reboot servers on a regular schedule like Windows servers."

Friday Jan 27, 2006

HOTSOS PD101 Course - more than just technical

A colleague and myself just returned from the "Diagnosing Oracle Performance Problems" course with HOTSOS given by Cary Millsap. This course was definitely top-notch with not only the technical aspect but the "people" aspect of solving performance problems. In my own experience I too have found that by partnering across the organization, you are better able to solve performance problems. Often times when a consultant is brought into an organization they can serve as a focal point. A good consultant can help provide a bridge between the user, developer, DBAs, and sysadmins. This course puts all of these aspects into perspective along with method-R.

I was also excited to be able to use the new version of HOTSOS. The new version is far superior to the share-ware versions on the web. I particularly like the ability to show skew in the various events... very useful for determining root cause.

Finally, I was happy to learn that HOTSOS is creating a new products which will use trace application data to help model and size systems for growth. This is a huge development. Other tools which try to model based on system resources completely miss the fact that all aspects of the application do not grow at the same rate. Using this new methodology, predicting grow should be much easier. Hats off once again to HOTSOS.

Thursday Apr 21, 2005

SUPerG DC 2005 update!

I have to thank the customers for making this event great. I had a lot of fun discussing performance tuning and architecture. The latest version of the paper and presentation are now on the site. Feel free to send me suggestions or questions at any time.

Additionally, I have been taking quite a few pictures around town which I thought I might share. I hope you enjoy.

See you at the next SUPerG,

Monday Apr 11, 2005

SUPerG conference - Paper and Presentation

I am going to be presenting at the spring SUPerG next week 4/21 - 4/23. IMHO, this is the best conference Sun offers - A great forum for techies to meet techies. Since I typically, update my presentation a few times before the conference, I thought it best to post LAG copies.

Hope to see you there,

Demystifying High-End Sun Fire Behavior
when Scaling Database Applications

by Glenn Fawcett and Marcus Heckel
Paper rev1.02 updated 4/19/05 after blog comments!!
Presentation rev1.03 updated 4/21/05 prior to pres :)

This paper attempts to explain the difference in the Sun Fire Server line. After examining the inherent differences, scaling topics will be discussed. The effects of large user, memory, and cpu count will be discussed along with Tips on how to best manage and scale applications.

Thursday Jun 10, 2004

Searching with ""

If you wanted to search for Oracle references on the you can use Google with "site" keyword like so " Oracle".

Also the< website is a great resource. They collect data on blogs and allow you to create your own custom RSS feed. In just a few minutes I was able to create a custom Oracle RSS feed... Pretty Cool!

Wednesday Jun 09, 2004

New Sun Fire Servers Nearly Double Supply Chain Management Performance

This whitepaper was originally delivered a the Spring 2004 SUPerG conference in Phoenix. It compares performance of of the Sun Fire 6800 to the new Sun Fire E6900 and shows how to tune this Multi-Tier Supply chain management application. Oracle, Solaris, Manugistics, and Java tuning is covered.

This paper which was co-authored by Glen Kriekenbeck and David Dagistine, can be found in whitepaper section of the Sun website or directly pdf (220 KB).

Monday Jun 07, 2004

Hello Bloggers

I joined Sun's Stratic Application Engineering group on 4/12/97 to work on Commerical Starfire Performance. I focus on primarily Oracle database performance. Our group is responisible for benchmarking the "Big Iron". My job is similiar to a race car mechanic, except I tune and prep computers for the track and not Porsches or BMWs. We test the absolute limits of the HW and produce the world record setting benchmarks. As a result of this experience, we write papers for conferences such as SUPerG, provide feedback to engineering, and assist customers with performance issues.

Several of my conference papers have been turned into Blueprints:

Our group has changed names several times since I joined. We are currently called RABM or "Reference Architecture and Benchmark" group. Before joining Sun, worked at Sequent Computer Systems for 4 1/2 years. I am well versed in Oracle performance issues. Feel free to send me a note if you have any questions.

This blog discusses performance topics as running on Sun servers. The main focus is in database performance and architecture but other topics can and will creep in.


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