Application Performance Management Blog – Shunra Software

A Data Driven Transactional Application A glossary post

A data driven transactional application supports the execution of business processes. Each business process (such as book sale, update employee status, submit work hours, etc.) is comprised of multiple business transactions. A business transaction is described as the interaction and managed outcome of a well-defined step within a business process. A transaction is usually triggered [...]

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Building Applications for a Remote Datacenter Part 1. The network impact

This series of posts is about the day after a data center move. Now that the data center is remote, how does this paradigm shift impact the way we should develop, test, deploy, monitor and troubleshoot applications. I will try to cover as many topics as possible, but the main focus is still going to be around the role application performance management plays in this new paradigm.

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Bandwidth – a glossary post

Bandwidth constraints: Network capacity, or bandwidth, is the maximal number of bits a network connection or interface can carry at a given period of time. It is measured in bps (bits-per-second), Kbps, Mbps or Gbps. The greater the bandwidth, the greater the number of concurrent application sessions the link can serve (for a given transaction) and [...]

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Jitter – a glossary post

Jitter:   Network jitter is the variation in the arrival rate of packets (more specifically, the inter packet gap of subsequent data packets as they arrive over a network). For most types of data applications large gap variations between arrival times (high jitter) are acceptable. For voice or video applications, relatively small jitter can cause perceptible [...]

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Packet Loss – a glossary post

Packet Loss: The term “packet loss” is used to describe the probability of dropping a packet at any point across the network link. The key reasons for packet loss across a network are:   When networks get congested over a long period of time the router buffers get saturated which at some point leads to a situation [...]

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Network Latency

In the next couple of posts I will add some glossary definitions that I see repeat in reader’s questions. I will also use these as I describe some of the performance analysis insights we experience in the field. Network Latency/Network Delay One-way network latency is defined as the amount of time it takes for a [...]

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