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SayPro Test single-user personal computers and peripherals
3.1 Burn-in" testing completes free of errors according to the assembly specifications.BurnInTest tests the CPU, hard drives, SSDs, RAM, optical drives (CD, DVD and Blu-ray), sound cards, graphics cards (GPGPU, Video RAM, 2D graphics, 3D graphics and video playback), network ports and printers.The Professional version also has a number of additional tests including microphones, webcams, battery’s, tape drives, USB ports (USB 3.0 and 2.0), Serial ports and Parallel ports(with the use of loop back plugs).If you have specialized hardware that BurnInTest does not test out of the box, you can write your own test and integrate it with BurnInTest. For example, Pass Mark has produced plugin tests for Touchscreens and Keyboards*.This can all be done simultaneously as the application is multithreaded, making BurnInTest the fastest test around.3.2 The testing procedure meets manufacturer’s guidelinesStress testing (sometimes called torture testing) is a form of deliberately intense or thorough testing used to determine the stability of a given system or entity. It involves testing beyond normal operational capacity, often to a breaking point, in order to observe the results. Reasons can include:· to determine breaking points or safe usage limits· to confirm intended specifications are being met· to determine modes of failure (how exactly a system fails)· to test stable operation of a part or system outside standard usageStress testing, in general, should put computer hardware under exaggerated levels of stress in order to ensure stability when used in a normal environment. These can include extremes of workload, type of task, memory use, thermal load (heat), clock speed, or voltages. Memory and CPU are two components that are commonly stress tested in this way. There is considerable overlap between stress testing software and benchmarking software, since both seek to assess and measure maximum performance. Of the two, stress testing software aims to test stability by trying to force a system to fail; benchmarking aims to measure and assess the maximum performance possible at a given task or function.When modifying the operating parameters of a CPU, such as:
- temperature,
- overclocking,
- under clocking,
- overvolting, and
- undervolting,
it may be necessary to verify if the new parameters (usually CPU core voltage and frequency) are suitable for heavy CPU loads. This is done by running a CPU-intensive program for extended periods of time, to test whether the computer hangs or crashes. CPU stress testing is also referred to as torture testing. Software that is suitable for torture testing should typically run instructions that utilise the entire chip rather than only a few of its units. Stress testing a CPU over the course of 24 hours at 100% load is, in most cases, sufficient to determine that the CPU will function correctly in normal usage scenarios such as in a desktop computer, where CPU usage typically fluctuates at low levels (50% and under).Hardware stress testing and stability are subjective and may vary according to how the system will be used. A stress test for a system running 24/7 or that will perform error sensitive tasks such as distributed computing or "folding" projects may differ from one that needs to be able to run a single game with reasonably reliability. For example a comprehensive guide on overclocking Sandy Bridge found that:Stress testing, in general, should put computer hardware under exaggerated levels of stress in order to ensure stability when used in a normal environment. These can include extremes of workload, type of task, memory use, thermal load (heat), clock speed, or voltages. Memory and CPU are two components that are commonly stress tested in this way.There is considerable overlap between stress testing software and benchmarking software, since both seek to assess and measure maximum performance. Of the two, stress testing software aims to test stability by trying to force a system to fail; benchmarking aims to measure and assess the maximum performance possible at a given task or function.When modifying the operating parameters of a CPU, such as
- Temperature,
- over clocking,
- under clocking,
- overvaulting,
- and under volting,
I-t may be necessary to verify if the new parameters (usually CPU core voltage and frequency) are suitable for heavy CPU loads. This is done by running a CPU-intensive program for extended periods of time, to test whether the computer hangs or crashes. CPU stress testing is also referred to as torture testing. Software that is suitable for torture testing should typically run instructions that utilise the entire chip rather than only a few of its units. Stress testing a CPU over the course of 24 hours at 100% load is, in most cases, sufficient to determine that the CPU will function correctly in normal usage scenarios such as in a desktop computer, where CPU usage typically fluctuates at low levels (50% and under). Hardware stress testing and stability are subjective and may vary according to how the system will be used. A stress test for a system running 24/7 or that will perform error sensitive tasks such as distributed computing or "folding" projects may differ from one that needs to be able to run a single game with reasonably reliability.
Software commonly used in stress testing
· Prime95, and derivatives such as Hyper Pi – CPU/heat· Intel processor diagnostic test· Intel Burn Test· Aida· Memtest86+ – memory· Passmark Burn-in· LinX (AVX)· OCCT· S&M3.3 The test ensures that system software communicates with the hardware modules in accordance with manufacturer’s and assembly specifications.In software testing, a system stress test refers to tests that put a greater emphasis on robustness, availability, and error handling under a heavy load, rather than on what would be considered correct behavior under normal circumstances. In particular, the goals of such tests may be to ensure the software does not crash in conditions of insufficient computational resources (such as memory or disk space), unusually high concurrency, or denial of service attacks.Examples:· A web server may be stress tested using scripts, bots, and various denial of service tools to observe the performance of a web site during peak loads. These attacks generally are generally under an hour long, or until a limit in the amount of data that the web server can tolerate is found.Stress testing may be contrasted with load testing:· Load testing examines the entire environment and database, while measuring the response time, whereas stress testing focuses on identified transactions, pushing to a level so as to break transactions or systems.· During stress testing, if transactions are selectively stressed, the database may not experience much load, but the transactions are heavily stressed. On the other hand, during load testing the database experiences a heavy load, while some transactions may not be stressed.· System stress testing, also known as stress testing, is loading the concurrent users over and beyond the level that the system can handle, so it breaks at the weakest link within the entire system.
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