Application Performance Monitoring (APM) is a set of disciplines, part of Performance Management, designed provide accurate information on how business applications are performing. Many organizations rely on APM to give them sufficient information to see if their internally‐developed applications and third party applications are performing well. The purpose of this exercise is both operational and, in the longer term, capacity planning purposes.
The overarching reason is to match delivered performance with the service level agreements (SLAs) developed between IT and the business(es). There are other reasons, not least those of organization productivity and external customer acceptance of the online service, particularly web sites.
The cruel fact of the matter is that poor or erratic performance (response times and throughput) are bad for business. Zero performance when the system is down doesn't help the cause either. As an aside, note that availability is an essential component of performance.
Aspects of Performance
There are several aspects of applications and related software that need to be monitored since an application makes use of other software in its execution. The number of aspects needing consideration depends on the complexity of the supporting environment. Typically, IT personnel will need to be aware, at a detailed level, of the performance of:
■ Internet services
■ Response times (overall)
■ Network traffic and latency
■ Transaction tracking (visibility) where applicable
■ The infrastructure - operating system, hypervisors
■ Web server software
■ Other middleware
■ ERP and other application systems. These sometimes have their own resource and reporting monitors.
■ File servers, messaging systems etc.
■ Use of what are known as "deep dive diagnostics" for knotty problems
An important aspect of performance (and other) monitoring is where the observer stands when looking at the IT scenario. If a complaint says the performance of an application is dreadful, the network man might say "Everything is fine" and the database man may agree, both saying "What's the problem?" All these people may say that the performance world is rosy but not to other people who have a different idea on what is rosy and what is not.
These are what I call viewpoints, a popular concept in IT architecture design method. Read APM and Viewpoints - Part 2, outlining the different viewpoints.
Dr. Terry Critchley is the Author of "Making It in IT", "High Performance IT Services" and “High Availability IT Services”.
This blog was created from extracts from Terry Critchley's book: High Performance IT Services [ August 25 2016]
IT professionals tend to go above and beyond the scope of their core responsibilities as the changing business landscape demands more of their attention, both inside and outside of the office, according to the Little-Known Facts survey conducted by SolarWinds in honor of IT Professionals Day ...
Digital video consumption is viral and, according to a new study released by IBM and International Broadcasting Convention (IBC), more than half of the 21,000 consumers surveyed are using mobiles every day to watch streaming videos, and that number is expected to grow 45 percent in the next three years ...
No technology that touches more than one IT stakeholder, no matter how good and how transformative, can deliver its potential without attention to leadership, process considerations and dialog. In this blog, I'd like to share effective strategies for AIA adoption ...
Enterprise IT environments are becoming more heterogeneous and complex, with fragmentation permeating cloud infrastructure, tooling and culture, according to a survey recently conducted by IOD Cloud Technologies Research in partnership with Cloudify ...
One area that enables enterprises to reduce complexity and streamline operations is their virtual desktop infrastructure (VDI). Virtualization is a linchpin of digital transformation and effectively optimizing an enterprise's VDI is essential to moving forward with digital technologies. Delivering the best possible VDI performance means taking a fresh look at what "desktop" means today. The endpoint, or desktop, now can be a physical thin client, a software-defined thin client, a traditional laptop, a phone or tablet. To reduce operational waste and achieve better performance across the desktop environment, consider these five actions ...
In incident management, we often overlook the simple things in favor of trying to do too much, too soon. Why not make sure we've done the fundamentals properly? ...
The Input/Output Operations per Second (I/O) capabilities of modern computer systems are truly a modern wonder. Yet no matter how powerful the processors, no matter how many cores, how perfectly formed the bus architecture, or how many flash modules are added, somehow it never seems to be enough ...
By taking advantage of performance monitoring, IT and business decision makers can gain better visibility into their cloud and application performance. Dedicated performance monitoring has become essential for providing visibility into all areas of application performance and keeping the business running optimally ...
There may be no more critical emerging technology for IT organizations in the digital age than advanced IT analytics (AIA) — most commonly called “operational analytics.” It is with this in mind that EMA is launching what we believe is the first ever buyer's guide for AIA adoption ...