Posts Categorized: Pythian
As SLOB takes the IO testing on Oracle Instance level, you need to watch for several things before you declare official testing results. My suggestion is: Don’t take any result for granted. You need to assess those before stating that you are done.
If you are wondering what I have been busying myself with, this post explains it. As you may have noticed, I am still testing one of the Oracle systems using the SLOB framework and learning on my way. I ran several tests with the same parameters (Readers 24) and noticed that for one reason or another awr.txt reports different runtimes.
I was wondering why I was getting inconsistent runtimes for similar conditions. The answer to the mystery was very simple: The runit.sh script just generates awr.txt reports for the last and before last awr snapshots.
In this post I provide a step-by-step guide outlining how to generate databasemachine.xml file to be used with OEM 12c.
If you are interested in the topic of ODA performance but missed the webinar or if you want to hear it again, you can view our recording here. I also uploaded the slides to slideshare, so you can take a better look at our benchmark results and study our consolidation methods at your own pace.
I was presented with test results that showed that IN query was about 100 times faster than OR query. Where OR query took minutes to run, IN query took seconds! Okay, I said to myself, it is time to start digging. Here are my findings.
At work, we have a need for a little job daemon that would poll jobs and process them. But there is more than one type of job, so the solution that we need will have to be a little more complex. To get to my goal, I decided that I would have a generic Poller class. For each type of job to monitor and run, I will create a different object with parameters to tell it how often to poll, how to poll, and what to do with the stuff it polls. Sounds good? Perfect, then let’s go.
We now know beyond a shadow of a doubt that new media technologies like Twitter and Facebook are not going to wipe-out blogs but are rather complementing them very nicely. It seems they were made for each other. This Log Buffer Edition enhances this match. Enjoy.
After completing your Oracle VM and Oracle VM Manager installation, you are ready to start your friendship with Oracle VM technology. However, to make your life and experience even more enjoyable, I suggest you follow a few simple steps listed here.
Generic benchmark tools can be very useful for testing performance on your system. These benchmark tools normally have a set of predefined workloads, but often they don’t match your specific workload in useful ways. One of the best ways to reproduce your workload is to have a good sense of the application that uses the…
These days, I go with Email::Simple to craft basic emails. For the more heavy stuff with attachments and what-not, I reach out to Email::MIME. Together, they make a pretty awesome duo. But… (Come on, admit it. You knew there was going to be a ‘but’.)