Software performance testing and its relevance

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Software performance testing and its relevance
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• In software engineering, performance testing is
  in general testing performed to determine how
  a system performs in terms of responsiveness and
  stability under a particular workload.
• It can also serve to investigate, measure,
  validate or verify other quality attributes of
  the system, such as scalability, reliability and
  resource usage. Software performance testing, a
  subset of performance engineering, is a computer
  science practice which strives to build
  performance into the implementation, design and
  architecture of a system.
• Load testing is the simplest form of performance
  testing. A load test is usually conducted to
  understand the behavior of the system under a
  specific expected load. This load can be the
  expected concurrent number of users on
  the application performing a specific number
  of transactions within the set duration.
• This test will give out the response times of all
  the important business critical transactions. If
  the database, application server, etc. are also
  monitored, then this simple test can itself point
  towards bottlenecks in the application software.
  Software performance testing has many other types
  like this one.

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• The first set of performance metrics defines the
  performance experienced by end users of the
  application. One example of performance is
  average response times under peak load. The load
  is the volume of transactions processed by the
  application, e.g., transactions per second (tps),
  requests per second, and pages per second.
  Without being loaded by computer-based demands
  for searches, calculations, transmissions, etc.,
  most applications are fast enough, which is why
  programmers may not catch performance problems
  during development. The response times are the
  times required for an application to respond to a
  user's actions at such a load. Application
  performance management is hence the translation
  of IT metrics into business meaning.
• With the growing number of industries depending
  increasingly on software driven operations the
  demand for Software Testers is surging every day.
  Mumbai, one of the leading cities of India,
  otherwise known as the commercial capital of the
  country for being home to one of the biggest
  entertainment industries in the world, also has a
  strong presence in the IT, ITES and Software
  Industry. No doubt, the demand for software
  testers is high there as well. There are many
  software testing companies in Mumbai that offer
  all these services.