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May 2013

Laptop and Desktop SSD Update…

I recently wrote about installing SSDs in my Laptop and Desktop. I thought I would write a quick follow up post to mention how things are going.

I’m really happy with the changes to the performance of the desktop. As mentioned previously, it is now much quieter and really fast. A lot of my VMs run from the 1TB internal data drive, but the things I use most frequently are now sitting on the SSD. I’m starting to forget what life was like before SSD, except when I go to work and use the slowest PC that was ever built. :)

gather_plan_statistics – 2

Some time ago – actually a few years ago – I wrote a note about the hint /*+ gather_plan_statistics */ making some informal comments about the implementation and relevant hidden parameters. I’ve recently discovered a couple of notes from Alexander Anokhin describing the feature in far more detail and describing some of the misleading side effects of the implementaiton. There are two parts (so far): part 1 and part 2.

 

Oracle Exadata Database Machine: Proving 160 Xeon E7 Cores Are As “Slow” As 128 Xeon E5 Cores?

Reading Data Sheets
If you are in a position of influence affecting technology adoption in your enterprise you likely spend a lot of time reading data sheets from vendors.  This is just a quick blog entry about something I simply haven’t taken the time to cover even though the topic at hand has always be a “problem.” Well, at least since the release of the Oracle Exadata Database Machine X2-8.

Oracle Exadata Database Machine: Proving 160 Xeon E7 Cores Are As “Slow” As 128 Xeon E5 Cores?

Reading Data Sheets
If you are in a position of influence affecting technology adoption in your enterprise you likely spend a lot of time reading data sheets from vendors.  This is just a quick blog entry about something I simply haven’t taken the time to cover even though the topic at hand has always be a “problem.” Well, at least since the release of the Oracle Exadata Database Machine X2-8.

I’m speaking at Enkitec Extreme Exadata Expo E4

Just a short notice to those interested that I’m very proud to be in the lineup for Enkitec’s Extreme Exadata Expo. The event takes place August 5-6, 2013 and is held in the Four Seasons Resort & Spa, Irving, Texas. There is plenty of time for you to register.

I was really sorry I missed out last year but this time I’m glad to participate and attend!

official site

The list of great speakers includes too many to name here-you should see for yourself about who is coming to Dallas this August and why this event is unmissable.

I’m hoping to see you there!

The sort of latency heat map you don’t want to see!

We’ve had a couple of short lived, but very inconvenient I/O latency issues recently. I’ve been using the awesome Latency Heat Map Visualization by Luca Canali as one of the tools to investigate this.

I’m guessing this isn’t the type of I/O latency heat map most people would want to see from a production system. :)

OraLatencyMap

 

Beginnings

“A beginning is the time for taking the most delicate care that the balances are correct.”

It is spring. Time for planting new seeds. I started on a new job last week, and it seems that few of my friends and former colleagues are on their way to new adventures as well. I’m especially excited because I’m starting not just a new job – I will be working on a new product, far younger than Oracle and even MySQL. I am also making first tiny steps in the open-source community, something I’ve been looking to do for a while.

I’m itching to share lessons I’ve learned in my previous job, three challenging and rewarding years as a consultant. The time will arrive for those, but now is the time to share what I know about starting new jobs. Lessons that I need to recall, and that my friends who are also in the process of starting a new job may want to hear.

Chapterhouse: Dune

Chapterhouse Dune is the last in the Dune series by Frank Herbert.

It’s really hard for me to make a judgement about Chapterhouse: Dune. On the one hand there are some excellent characters and the general story line is great. On the other, there are parts I found really boring. I got a bit sick of the teasers without any explanation. At first is was intriguing, but as they continued I just got a bit fed up with them and decided to stop second guessing the outcome and just let it happen. I think there are two ways an author can play this game:

1) Make the outcome fairly obvious from the start, but make the journey to get there exciting. Kind of like The Dresden Files.
2) Make the outcome a mystery, but subtly lead you in the right direction.

BGOUG Spring 2013 : Day 2…

How do you want to start the day? I’m guessing it’s not to be called out to the front of the room by a speaker and used as a guinea pig, while they ask you trick questions to make you look stupid. Tom Kyte, you will pay. Oh yes! You will pay!!!

The sessions I attended on day 2 were:

BGOUG Spring 2013 : Day 1 (part 2)…

So Day 1 (part 2) didn’t go to plan because I forgot to take my camera or my phone to the party. :)

Suffice to say, lots of food, lots of drink (for those that do) and most importantly lots of dancing. Yes, I once again murdered the traditional dances of Bulgaria, but it’s the takling part that counts right? :)

I had good intentions of leaving early, but I ended up chatting about Oracle until about 02:00. Day 2 is going to be tough… :)

Cheers

Tim…