APM Insights: Beyond the Acronym

Application Performance Management

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Latest Articles from Application Performance Management
More and more Web sites and applications are being moved from Apache to nginx. While Apache is still the number one HTTP server with more than 60% on active Web sites, nginx has now taken over the 2nd place in the ranking and relegated Microsoft’s IIS to 3rd place. Among the top 10.000...
In Part 6, we dove into the Nagle algorithm – perhaps (or hopefully) something you’ll never see. In Part VII, we get back to “pure” network and TCP roots as we examine how the TCP receive window interacts with WAN links. Each node participating in a TCP connection advertises its avail...
In Part V, we discussed processing delays caused by “slow” client and server nodes. In Part VI, we’ll discuss the Nagle algorithm, a behavior that can have a devastating impact on performance and, in many ways, appear to be a processing delay. Beyond being important for (reasonably) a...
“Vote early and vote often.” Back in the 1920s and ’30s, when neither election technology nor oversight were as effective as they are today, and the likes of Al Capone were at work gaming the system, this phrase wasn’t a joke. It was a best practice. If you want guaranteed results, wh...
The world of log management and application performance monitoring are evolving and there is no longer a big distinction between the two. Up to even a year ago, many people in IT viewed logs as simply a means of identifying and tracking issues once they have occurred within their syste...
In Part IV, we wrapped up our discussions on bandwidth, congestion and packet loss. In Part V, we examine the four types of processing delays visible on the network, using the request/reply paradigm we outlined in Part I. From the network’s perspective, we allocate the time period bet...
We know that losing packets is not a good thing; retransmissions cause delays. We also know that TCP ensures reliable data delivery, masking the impact of packet loss. So why are some applications seemingly unaffected by the same packet loss rate that seems to cripple others? From a pe...
In Part II, we discussed performance constraints caused by both bandwidth and congestion. Purposely omitted was a discussion about packet loss – which is often an inevitable result of heavy network congestion. I’ll use this blog entry on TCP slow-start to introduce the Congestion Windo...
When we think of application performance problems that are network-related, we often immediately think of bandwidth and congestion as likely culprits; faster speeds and less traffic will solve everything, right? This is reminiscent of recent ISP wars; which is better, DSL or cable mode...
As a network professional, one of your newer roles is likely troubleshooting poor application performance. For most of us, our jobs have advanced beyond network “health,” towards sharing – if not owning – responsibility for application delivery. There are many reasons for this more jus...
make it a lot easier and more fun to develop apps for both iOS and OS X. That’s in contrast to the current language, Objective-C, which is somewhat antiquated and considered by many to be difficult to use. Although Swift is easier to use, we’re sure that there will be issues like crash...
Users are becoming increasingly impatient with new apps that don’t work. Often, you get one shot to get it right. But, new applications are being rolled out all the time and being accessed from all sorts of devices. Operations need to provide developers with real-world production data ...
In production support it is often hard to correlate what might be happening on local servers with what users are reportedly experiencing. In April, the developers for a Java application that handles electronic distribution of scanned mail and electronic faxes were receiving reports tha...
Today, more than ever, end user experience is at the forefront of every CTO and CMO’s mind as more statistics show websites and applications are easily abandoned if users are not satisfied with their experience. But what makes a good experience? First we need to ask ourselves what is ...
Adopting an Application Performance Management (APM) strategy will help you manage the quality of the Customer Experience. The challenge is that APM has evolved into a mosaic of monitoring tools, analytic engines, and event processors that provide many solutions to different problem se...
In many companies, the business leadership team, the application team and the infrastructure team are all different entities. And while they are all very dependent on each other in many ways, often organizational goals and alignment can be very different for each team. For example, bu...
With the establishment of mobile web and native mobile apps, your website isn’t the only customer touch point anymore. Mike Austin, Director of e-Commerce at RoomsToGo said it best: “Our customers expect the same experience throughout all our channels no matter if it is the website, m...
Service Level Agreements (SLAs) offered by cloud providers are too often about Specification and not Service. It should come as no surprise that vanity metrics, like Availability, are used instead of business metrics because they are simple to measure and easy to misconstrue. Metrics t...
A look into ITIL's Continual Service Improvement (CSI) model and the Application Performance Management (APM) framework indicates they are both focused on improvement. If you’re thinking about how to build a sustainable APM solution and how it can be anchored into the IT culture, cons...
In today’s application economy, enterprise organizations realize that it’s their applications that are the heart and soul of their business. If their application users have a bad experience, their revenue and reputation are at stake. As public, private and hybrid cloud are becoming m...
No matter how often you deploy your application or how sophisticated your delivery pipeline is, you always need to know the quality status of the software you are building. That can only be done if you measure it; but measure what exactly? In Part 1 we introduced the Concept of Quality...
loud providers Google, AWS and Microsoft are doing some spring-cleaning - out with the old, in with the new - when it comes to pricing services. With the latest cuts, here's a news flash: There's a new business model driving cloud that is every bit as exponential in growth -- with or...
Poorly performing websites, like Twitter’s recent fiasco with Ellen’s selfie, are a constant source of irritation for users. At first you think it’s your computer, or maybe someone on your block is downloading the entire “Game of Thrones” series. But, when nothing changes after refresh...
Have you seen this error message before “java.sql.Exception: ORA-00060: deadlock detected while waiting for resource”? This is caused when parallel updates require locks on either rows or tables in your database. I recently ran into this exception on an instance of an IBM eCommerce Se...
The selfie that changed the world, or at least Twitter, has been in the news for the past month. On March 2, 2014, the infamous Oscar selfie of Ellen and her celebrity friends broke a record of 2 million retweets before midnight the same night. That record was previously set by Preside...
Telerik Controls are great for building modern, rich clients, and web applications often seen at the enterprise level. I just worked with a company that uses these controls in their soon-to-be-released customer-facing SharePoint portal. They ran a small load test that showed that the r...
Assuming that your organization is well down the road when it comes to adopting the Cloud and in fact, has been utilizing the Cloud for a while, then you are likely a true believer that ultimately all of your applications will be migrated to the Cloud. It is no longer a question of "if...
Are you serving .SWF files from your web server and getting complaints from your end users that your flash app is “just slow?” Or has your Ops team wondered why you see such high web request response times for some of the web service calls executed by your Flash Client? I was just wor...
Two weeks ago I wrote about how the world’s largest exporter of dairy products uses SAP to support their huge delivery chain of dairy products. We recounted how Fonterra used an Application Performance Monitoring (APM) tool to discover that additional training for employees was necessa...
We first discussed Super Bowl lessons learned around bloated web pages that brought down sites like Kia.com. On the other side, GoDaddy did a great job in reducing the page load just for the time of the Super Bowl to ensure that their site wouldn’t go down. But there is more to learn ...
Maximum productivity can be achieved more efficiently through event correlation, system automation and predictive analysis. Making that a reality however, requires consideration on how to manage the integration touch points from multiple toolsets and openness to the intrinsic value tha...
Application Performance Management (APM) may be brought in to help resuscitate an application that has recently become lethargic or assist the team in rehabilitating an intrinsic codebase. Once the goal is attained however, the propensity to pigeonhole APM as a point solution is high. ...
For years, the benefits of moving to the cloud – including lowered costs, flexibility and faster time-to-market – have been espoused. But among IT professionals, there remains widespread reticence about migrating mission-critical applications over, due in large part to performance conc...
User experience can boost or kill your revenue. Unhappy users are likely to abandon a service they struggle with and go to your competitors. To effectively manage the experience of your users, you need to efficiently monitor and understand their transactions in your mobile, web and ent...
In my previous posts I wrote about how important it is to have end-to-end visibility into SAP in order to avoid serious problems in our delivery chain or to discover that application performance degradation was caused by malfunctioning hardware. One of our New Zealand customers, Fonte...
In a previous post, we discussed why GoDaddy could sustain the peak load after its Super Bowl Ad campaign aired and why others like Kia wasted a lot of marketing money because its site availability dropped under the load. In this post, we will look at the technical details behind the i...
This article is based on the experience of Jan Swaelens, Software Architect at Sofico. He is responsible for automatic performance testing of the company’s new web platform based on GWT and SmartGWT. Sofico is specialized in software solutions for automotive finance, leasing, fleet and...
DevOps, when done right, usually goes unnoticed. It’s only when something breaks that all eyes turn to IT. If your boss only sees you when the app is down, however, that’s not really doing your career any favors. In his session at 2nd DevOps Summit, Dustin Whittle, Developer Evangeli...
Compuware Corporation, the technology performance company delivering a new generation of application performance management (APM), has announced a webcast that will examine best practices and lessons learned optimizing Hadoop and NoSQL deployments. With all of the benefits big data of...
Convincing the astute executive who is cautious in not making an impetuous decision on an APM investment can prove to be challenging. Consider the amount of due diligence that is brought to bear in the decision making process. The wide array of APM technologies that need to be reviewed...