One of the big topics in the BigData community is Map/Reduce. There are a lot of good blogs that explain what Map/Reduce does and how it works logically, so I won’t repeat it (look here, here and here for a few). Very few of them however explain the technical flow of things, which I at [...]
Application Performance, Scalability and Architecture
dynaTrace AJAX Edition 3.4 now gives you full JavaScript, AJAX, Network and Rendering analysis support for Mozilla Firefox 8 and 9 as well as Internet Explorer 8 and 9. If you want to optimize the performance of all your users’ browser versions, have a look at the dynaTrace AJAX Edition Premium to guarantee the best [...]
Obviously, cloud computing is not just a fancy trend anymore. Quite a few SaaS offerings are already built on platforms like Windows Azure. Others use Amazon’s EC2 to host their complete infrastructure or at least use it for additional resources to handle peak load or do “number-crunching”. Many also end up with a hybrid approach [...]
20
Dez
Third Party Content Management applied: Four steps to gain control of your Page Load Performance!
Today’s web sites are often cluttered up with third party content that slows down page load and rendering times, hampering user experience. In my first blog post, I’ve presented how third party content impacts your website’s performance and identified common problems with its integration. Today I want to share the experience I have made as [...]
Most production monitoring systems I have seen have one major problem: There are too many JVM’s, CLRs and Hosts to monitor. One of our bigger Customers (and a Fortune 500 Company) mastered the challenge by concentrating on what really matters: The Applications! Ensure Health The following dashboard is taken directly from the production environment of [...]
Some time back I planned to publish a series about java memory problems. It took me longer than originally planned, but here is the second installment. In the first part I talked about the different causes for memory leaks, but memory leaks are by far not the only issue around java memory management. Edit: A [...]
15
Dez
We are growing!
Today is great day for us. Due to our continuously growing user base we have decided to migrate our blog to a bigger server. As a performance blog we strive to provide great performance to our readers. Our performance monitoring has shown us that our end user response times were not that great so we [...]
Like everybody else it took me a while to wrap my head around the BigTable concepts in Cassandra. The brain needs some time to accept that a column in Cassandra is really not the same as a column in our beloved RDBMS. After that I wrote the first Web Application and run into a pretty [...]
5
Dez
MMT 28 – Slides and more
MMT 28 was a great conference. A lot of great talks and a very interested audience. I was lucky to speak about Web performance. As promised you can find my slides below. Also feel free to post questions on my talk. Web Performance Optimzation View more presentations from Alois Reitbauer.
Last time I talked about the key differences between RDBMS and the most important NoSQL databases. The key reasons why NoSQL databases can scale the way they do is that they shard based on the entity. The „simplest“ form of NoSQL database shows this best, the distributed Key/Value Store. Last week I had the chance [...]
