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hotsos 2010

Hotsos2010 - Training Day Tanel Poder

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Time Matters: Throughput vs. Response Time - Part 2

In one of my Hotsos Symposium 2010 posts I mentioned that Peter Stalder had plugged some test results from an earlier blog post into Neil Gunther's Universal Scalability Law to see how well the model applied. Peter's posted his slides now and I've added the URL to the comments thread of the original post so people can see another perspective.

He also pointed out a recent blog post discussing similar subjects at Neil Gunther's blog although I must admit I've only had a quick glance at it because I'm up to my eyeballs in mail at the moment :-(

Hotsos 2010 - Summary

[One thing that's great about jet-lag is that it allows you to catch up on blogging and all the email that's built up while you've been away at the conference. Not much else you can do at 2:30 in the morning.]

I'm glad I went to the Hotsos Symposium again this year. Attending conferences is an expensive business when you're a contractor as it means more lost income, so I can't go to every conference I'd like to attend but this one should probably remain near the top of my list.


- My presentation, obviously. There was a funny moment in the office today when I was looking at the OEM Top Activity page - because, yet again, it had highlighted a performance problem we were previously unaware of - and our architect said perhaps I shouldn't be using it because I couldn't be trusted not to break OEM! ;-)

- Somehow contriving to miss both of Richard Foote's presentations but at least I was able to enjoy his entertaining company at dinner one night.

- The weather - not what I had in mind at all!


- The people, as always. Not only are there lots of smart speakers and attendees at Hotsos, but the informal setting makes it easier to catch up with them. It was particularly good to get time to speak properly to a few people I've only met briefly before, buy Kerry Osborne that beer and to see Polish Paul Matuszyk there after I recommended it to him 4 years ago! As for Monique, she's one of a kind ;-)

Hotsos 2010 - Day 5 - Training Day with Tanel Poder

I generally wouldn't visit the Hotsos Training Day, mainly because I've been away from home and work for long enough, particularly when you add the travelling time at either end, but this time I was determined to attend because Tanel was presenting.

It was a busy room with a very high percentage of attendees staying for the additional day. I suppose once people were actually allowed out of the office in the current economic climate, they figured they might as well pack in as much learning as they could. Tanel described it as one of the peaks of his career and I can understand that. It's an honour to present at the Symposium, so a whole day must be a pretty special privliege, but he's more than earned it with the number of good presentations and blog posts he's come up with.

It didn't get off to a good start, though, as there was a problem with the focus of the projectors, but that was soon adjusted a little and people were happy as long as it was good enough to read the text.

Speaking of text, he kicked off spending quite a bit of time talking about using the right tools for the job - sqlplus, basically ;-) - and how we can make our own performance more efficient before we even start looking at performance issues. Make no mistake - despite having a love of pictures these days, I'm fundamentally a command line chap who frequently finds himself doing the things Tanel talked about, which consequently made me chuckle.

- When diagnosing Oracle problems reported by others, I ask them to stop using TOAD, their JDBC application or whatever it is they're using and login to sqlplus. Once the problem is recreated there, I know it's a real problem.