What is Performance Testing?

Performance Testing

YouTube Video: Performance Testing What is Performance Testing? “Performance testing is a systematic testing approach to validate the performance of an application under load.” In the above definition, two important words appear. One is ‘Performance’ and another one is ‘Load’. The word ‘Performance’ refers to the behaviour of an application in terms of responsiveness and … Read more

Linux Performance Monitoring – iostat

Linux Performance Monitoring iostat

Linux server performance monitoring through the ‘iostat’ command provides general information about disk operations and related statistics. ‘iostat’ stands for ‘Input/Output Statistics’ and it is a utility that monitors system input/output by observing the time the devices are active in relation to their average read and write rates. The output of the command ‘iostat’ helps … Read more

Linux Performance Monitoring – mpstat

Linux Performance Monitoring – mpstat

Linux server performance monitoring through the ‘mpstat’ command, is one of the oldest and most valuable ways to capture CPU statistics. If the system is a multi-core processor, then the mpstat command helps monitor each core CPU. If a Linux kernel has dual processors with dual cores, the command will report 4 CPUs statistics. The … Read more

Linux Performance Monitoring – vmstat

Linux Performance Monitoring - vmstat

Linux server performance monitoring through the ‘vmstat’ command, is one of the oldest and most valuable ways to capture memory statistics. ‘vmstat’ stands for ‘Virtual Memory Statistics’ and it is a utility that provides an excellent low-overhead view of system performance. Because ‘vmstat’ is such a low-overhead tool, it is practical to keep it running … Read more

VMWare Systems Performance Counters

VMWare Systems Performance Counters

VMWare systems are used as servers to provide virtualization solutions for businesses. Virtualization is a technology used to allow a single physical server to be divided into multiple virtual servers, each running its own operating system and applications. This provides a great deal of flexibility, allowing businesses to deploy applications quickly and easily while reducing … Read more

Solaris Operating System Performance Counters

Solaris Operating System Performance Counters

Solaris is a Unix-based operating system developed by Sun Microsystems and now owned by Oracle. It is designed for use on SPARC, x86, and IA-64 architectures. Solaris is used as a server operating system in many large enterprise environments and cloud computing solutions. It provides a wide range of features, including virtualization, clustering, high availability, … Read more