In a Part 1, I demonstrated how to add more depth to the analysis of a
Compuware APM Web Load Test by combining the external load results with the
application and infrastructure data collected by the Compuware PureStack
Technology. But, now that we have tested the system once, what would happen
if we tested it again after we identified and "resolved" the issues we found?
Would running a test using the same parameters as in the initial test show a
clear performance improvement? Would the system be able to achieve the
desired load of 200 virtual users with little or no performance degradation?
This article takes you through the steps you should follow in order to
directly compare the results of two load tests and measure the performance
improvement (or degradation) that occurred with the fixes put in place.
Step 1: Identify issues and implement changes based on initial ... (more)
Andreas Grabner described how he used the Compuware APM PureStack technology
to identify the server-side performance issues during a recent load test run
against the Compuware APM Community Portal, a production application used by
our customers. He was able to quickly identify the CPU bottleneck that caused
the performance degradation in the server environment, leading to an almost
immediate resolution of the issue.
Bridging the Gap between Ops and Apps Data by adding Context: One picture
that shows the Hotspots of "Horizontal" Transaction as well as the "Vertical"
But ... (more)
Complexity is the new reality of web and mobile applications with almost no
new release going out without the addition of services and applications
spread across many different companies. But the reality of this new
interrelationship is still the same: If a third-party Internet outage or
issue occurs, your brand is the one that is affected.
With up to 1,500 distinct third-party services available to choose from
around the world, it is sometimes difficult to even identify what a service
does when it appears in your applications. This forces your team to not only
be fully aware of... (more)
I started in the web performance industry - well before Application
Performance Management (APM) existed - during a time when external, single
page measurement ruled the land. In an ecosystem where no other solutions
existed, it was the top of the data chain to support the rapidly evolving
world of web applications. This was an effective approach to APM, as most
online applications were self-contained and, compared to the modern era,
relatively simple in their design.
A state-of-the-art web application, circa 2000
Soon, a new solution rose to the top of the ecosystem - the synth... (more)
It's been a busy and successful seven days for online retailers. Black Friday
and Cyber Monday traffic and sales were well above 2011, and there was the
extra benefit to those businesses that started deals on Thanksgiving Night.
The traffic data collected by the Compuware Ecommerce and Retail Real use
Monitoring index matched almost exactly the pattern seen by Akamai for all of
their US ecommerce and retail customers on the three busiest days.
Performance for many mobile sites has been cited elsewhere as being slow on
Black Friday and Cyber Monday. Looking at the... (more)