Author: user

… or is it a Scottish Stunt Double? I’m not sure. I had originally planned to attend only the afternoon part of next week’s OUG Scotland conference. That way I would be able to spend the morning in work and still catch a few presentations I want to see. However, Mogens Norgaard is unable to… Continue reading I was a Danish Stunt Double

I think it’s interesting to see what other people are working with, so I thought I’d advertise a couple of online surveys. Kevin Closson’s RAC Survey has been kicking around for a while now and the only reason I haven’t participated is that we don’t use RAC at all at my current site. Jeff’s 11g… Continue reading A Couple of Surveys

Curioser and curioser …. I’ve been thinking about this on and off today and I really can’t understand the behaviour I’m seeing. In fact, it’s a good job it was a busy day or it might have sent me round the twist 😉 I’ve been playing around a little tonight, trying to find the obvious… Continue reading 11g and direct path reads

Now, that’s weird. A little surprising might be more accurate and maybe I’m missing something. During the various tests with and without parallel hints and different parallel_io_cap_enabled settings, I expected the runs that didn’t use parallelism to show up “db file scattered read” events in the trace files. For example, here’s the explain plan and… Continue reading Parallel Query and 11g – Part 2

I’ve been playing around with 11g on and off this week, re-running some of the tests in this document (PDF file). The main edits required to the scripts were simple ones to correct the locations of trace files, for example (where $ORACLE_BASE is /ora on the 10g system) rm /ora/admin/TEST1020/udump/*.trc and $ORACLE_BASE is /u01/app/oracle on… Continue reading Parallel Query and 11g

What a horrible week it’s been from a technical perspective. I decided mid-way through the previous week that I was going to bite the bullet, give up on DTrace for a while and install Linux on the server so I could run the PX tests on 11g. Then Jeff Moss sent me an email to… Continue reading One Day Soon, I’ll Install Something

As a post-script to the earlier blogs, Alex Gorbachev suggested a link to his UKOUG 2006 presentation in this area might prove useful and I agree. So here it is.

As a follow-up to my DTrace and Oracle overview presentation at the MSDBF … I highlighted that DTrace is not just a Solaris 10 tool. It could be ported to other Operating Systems with Sun’s encouragement and BSD and OS-X are early examples of this. I also mentioned that IBM are bringing out a DTrace-like… Continue reading DTrace and Linux

(and I’m writing this from a positive perspective) Now that the community is over the initial ‘Look over, there! It’s 11g!!!!’, there are some genuinely interesting blogs kicking around. (Maybe we need to give these things a little time?) I’d better only talk about a couple, though, or Dave Edwards will start telling me off… Continue reading That’s More Like It!

Sorry, I shouldn’t be so sarcastic, but try to show some sympathy for my schedule. Thursday 9th August 22:30 BST – Go to bed, unusually early. Friday 10th 06:00 BST – Wake up, check Netvibes and noticed several 11g release blogs, including Eddie’s initial notification and Howard’s installation! 07:30 BST – Leave for my current… Continue reading Does Anyone Know When 11g Will Be Released?