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Software Load Testing
The term ''load testing'' or stress testing is used in different ways in the professional software testing community. ''Load testing'' generally refers to the practice of modeling the expected usage of a software program by simulating multiple users accessing the program concurrently. As such, this testing is most relevant for multi-user systems; often one built using a client/server model, such as web servers. However, other types of software systems can also be load tested. For example, a word processor or graphics editor can be forced to read an extremely large document; or a financial package can be forced to generate a report based on several years' worth of data. The most accurate load testing simulates actual use, as opposed to testing using theoretical or analytical modeling. Load testing lets you measure your website's quality of service (QOS) performance based on actual customer behavior. Nearly all the load testing tools and frameworks follow the classical load testing p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Testing
Software testing is the act of checking whether software satisfies expectations. Software testing can provide objective, independent information about the Quality (business), quality of software and the risk of its failure to a User (computing), user or sponsor. Software testing can determine the Correctness (computer science), correctness of software for specific Scenario (computing), scenarios but cannot determine correctness for all scenarios. It cannot find all software bug, bugs. Based on the criteria for measuring correctness from an test oracle, oracle, software testing employs principles and mechanisms that might recognize a problem. Examples of oracles include specifications, Design by Contract, contracts, comparable products, past versions of the same product, inferences about intended or expected purpose, user or customer expectations, relevant standards, and applicable laws. Software testing is often dynamic in nature; running the software to verify actual output ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volume Testing
{{More citations needed, date=August 2023 Volume testing belongs to the group of non-functional tests, which are a group of tests often misunderstood and/or used interchangeably. Volume testing refers to testing a software application with a certain amount of data to assert the system performance with a certain amount of data in the database. Volume testing is regarded by some as a type of capacity testing, and is often deemed necessary as other types of tests normally don't use large amounts of data, but rather typically use small amounts of data. It is the only type of test which checks the ability of a system to handle large pools of data. For example, the test can be used to stress the database to its maximum limit. While the amount can, in generic terms, be the database size, it could also be the size of an interface file that is the subject of volume testing. For example, if one wants to volume test an application with a specific database size, the database will be expanded t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LoadRunner
LoadRunner is a software testing tool from OpenText. It is used to test applications, measuring system behavior and performance under load. LoadRunner can simulate millions of users concurrently using application software, recording and later analyzing the performance of key components of the application whilst under load. LoadRunner simulates user activity by generating messages between application components or by simulating interactions with the user interface such as key presses or mouse movements. The messages and interactions to be generated are stored in scripts. LoadRunner can generate the scripts by recording them, such as logging HTTP requests between a client web browser and an application's web server. Hewlett Packard Enterprise acquired LoadRunner as part of its acquisition of Mercury Interactive in November 2006. In Sept 2016, Hewlett Packard Enterprise announced it is selling its software business, including Mercury products, to Micro Focus. As of 01-Sept-2017, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SendGrid
Twilio SendGrid, commonly known as SendGrid, is an American communication platform for transactional and marketing email based in Denver, Colorado. History SendGrid was founded in 2009 by Isaac Saldana, Jose Lopez, and Tim Jenkins. Later, it was incubated through the Techstars accelerator program. By December 2009, the company announced it had raised $750,000 in a funding round led by Highway 12 Ventures. Other participating investors included SoftTech VC, FF Angel, and TechStars founder David Cohen. In April 2010, the email software-as-a-service (SaaS) company received $5 million in Series A round funding from Foundry Group, SoftTech VC, and Highway 12 Ventures, as well as individual investors including David Cohen, Scott Petry, Dave McClure, and Matt Mullenweg. Ryan McIntyre, the co-founder of Foundry, joined SendGrid's board of directors at this time as well. In January 2012, SendGrid raised $21 million in Series B funding, led by Bessemer Venture Partners. In August ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNU General Public License
The GNU General Public Licenses (GNU GPL or simply GPL) are a series of widely used free software licenses, or ''copyleft'' licenses, that guarantee end users the freedom to run, study, share, or modify the software. The GPL was the first copyleft license available for general use. It was originally written by Richard Stallman, the founder of the Free Software Foundation (FSF), for the GNU Project. The license grants the recipients of a computer program the rights of the Free Software Definition. The licenses in the GPL series are all copyleft licenses, which means that any derivative work must be distributed under the same or equivalent license terms. The GPL is more restrictive than the GNU Lesser General Public License, and even more distinct from the more widely used permissive software licenses such as BSD, MIT, and Apache. Historically, the GPL license family has been one of the most popular software licenses in the free and open-source software (FOSS) domai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HammerDB
HammerDB is an open source database benchmarking application developed by Steve Shaw. HammerDB supports databases such as Oracle, SQL Server, Db2, MySQL and MariaDB. HammerDB is written in Tcl, TCL and C (programming language), C, and is licensed under the GPL v3. Features HammerDB is a database load testing and benchmarking tool. HammerDB is used to create a test schema, load it with data and simulate the workload of multiple virtual users against the database for both transactional and analytic scenarios. HammerDB makes it possible to run derived workloads of the industry standard TPROC-C & TPROC-H (known by trademarks TPC-C and TPC-H respectively) so they can compare and contrast systems, databases and database cloud services. HammerDB supports Oracle Database, Microsoft SQL Server, IBM Db2, TimesTen, MySQL, MariaDB, PostgreSQL, Greenplum, Postgres Plus Advanced Server, Amazon Aurora and Amazon Redshift. HammerDB also includes deprecated workloads for Redis and Apache Tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gatling (software)
Gatling is a load- and performance-testing framework based on Scala and Netty. The first stable release was published on January 13, 2012. In 2015, Gatling's founder, Stéphane Landelle, created a company (named "Gatling Corp"), dedicated to the development of the open-source project. According to Gatling Corp's official website, Gatling was downloaded more than 20,000,000 times (2024). In June 2016, Gatling officially presented Gatling Enterprise the commercial version which included test orchestration and team collaboration features. The software is designed to be used as a load testing tool for analyzing and measuring the performance of a variety of services, with a focus on web applications, application programming interfaces (APIs), and microservices. Gatling was mentioned twice in ThoughtWorks Technology Radar, in 2013 and 2014, "as a tool worth trying", with an emphasis on "the interesting premise of ''treating your performance tests as production code''". The latest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood
A flood is an overflow of water (list of non-water floods, or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are of significant concern in agriculture, civil engineering and public health. Environmental issues, Human changes to the environment often increase the intensity and frequency of flooding. Examples for human changes are land use changes such as deforestation and Wetland conservation, removal of wetlands, changes in waterway course or flood controls such as with levees. Global environmental issues also influence causes of floods, namely climate change which causes an Effects of climate change on the water cycle, intensification of the water cycle and sea level rise. For example, climate change makes Extreme weather, extreme weather events more frequent and stronger. This leads to more intense floods and increased flood risk. Natural types of floods include riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spirent
Spirent Communications plc is a British-American multinational telecommunications testing company headquartered in Crawley, West Sussex, in the United Kingdom. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. History The company was founded by Jack Bowthorpe in 1936 as Goodliffe Electric Supplies. In 1949 it changed its name to Bowthorpe. It acquired Optima Electronics in 1987 and disposed of its defence businesses in 1990. The company's electronics business grew rapidly during the dot-com boom of the 1990s, with the 1995 purchase of Telecom Analysis Systems (located in Eatontown, New Jersey) and the 1997 purchase of businesses such as Adtech, a digital test equipment concern based in Hawaii and the company was a member of the FTSE 100 index from time to time. It disposed of its automotive industry businesses in 1999, the same year that it bought Netcom Systems, a US telecoms testing business which makes network equipment testers, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blitz (software)
Blitz is a cloud-based load- and performance-testing service (SaaS) that allows developers to "rush" (load test) a Web app or Web API with up to 200,000 concurrent users within seconds from multiple points of presence around the world. The tool allows users to test web applications, websites, and APIs to identify infrastructure weaknesses. Capabilities Blitz is a load-testing tool from the cloud to the cloud. Blitz customers tend to be application and website developers who use the service throughout the iterative build process of mobile applications, websites, and APIs. Blitz provides developers with several capabilities throughout the build process: * Load testing for Web apps and APIs to test scalability * Integration with PaaS providers, continuous integration tools, and browsers * Scales testing up to 50,000 simultaneous virtual users on a pay-per-test model * Cloud-based, no client to install. However, this means it is unable to test applications behind firewalls or otherwi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BlazeMeter
BlazeMeter is a continuous testing platform that was acquired in 2021 by Perforce Software, which is based in Minneapolis, Minnesota. It provides enterprise-level GUI functional testing, performance testing, API functional testing, mock services, test data management, API monitoring, and reporting. History BlazeMeter was originally founded in 2011 and was acquired by CA Technologies in 2016, which became a subsidiary of Broadcom Inc. in 2018. In October 2021, BlazeMeter was acquired by Perforce as part of its application quality and testing portfolio. BlazeMeter is also a major contributor to open-source Apache JMeter, through JMeter plugins, fixes, and documentation. Company In December 2011, BlazeMeter announced raising $1.2 million financing from YL Ventures. BlazeMeter provides developers with tools using the Amazon Elastic Compute Cloud (EC2) service that provides mobile, web application, website, web service, or database testing that can simulate thousands of use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apache License
The Apache License is a permissive free software license written by the Apache Software Foundation (ASF). It allows users to use the software for any purpose, to distribute it, to modify it, and to distribute modified versions of the software under the terms of the license, without concern for royalties. The ASF and its projects release their software products under the Apache License. The license is also used by many non-ASF projects. History Beginning in 1995, the Apache Group (later the Apache Software Foundation) released successive versions of the Apache HTTP Server. Its initial license was essentially the same as the original 4-clause BSD license, with only the names of the organizations changed, and with an additional clause forbidding derivative works from bearing the Apache name. In July 1999, the Berkeley Software Distribution accepted the argument put to it by the Free Software Foundation and retired their ''advertising clause'' (clause 3) to form the new 3-clau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
