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  2. BlackNurse - Wikipedia

    en.wikipedia.org/wiki/BlackNurse

    Instead, the researchers realized that the "Destination Port Unreachable" packet causes high CPU usage in the firewall that processes it. [3] Using a relatively small bandwidth of 15-18 Mbit/s, an attacker can cause CPU usage to spike in a target firewall, causing that firewall to become unable to process more requests.

  3. Denuvo - Wikipedia

    en.wikipedia.org/wiki/Denuvo

    Denuvo has been criticised for high CPU usage and excessive writing operations on storage components, the latter potentially causing significant life-span reductions for solid-state drives (SSDs). Denuvo Software Solutions has denied both claims. [28]

  4. System Idle Process - Wikipedia

    en.wikipedia.org/wiki/System_Idle_Process

    However, the idle process does not use up computer resources (even when stated to be running at a high percent). Its CPU time "usage" is a measure of how much CPU time is not being used by other threads. In Windows 2000 and later the threads in the System Idle Process are also used to implement CPU power saving.

  5. Computer performance - Wikipedia

    en.wikipedia.org/wiki/Computer_performance

    When it comes to high computer performance, one or more of the following factors might be involved: Short response time for a given piece of work. High throughput (rate of processing work tasks). Low utilization of computing resources. Fast (or highly compact) data compression and decompression. High availability of the computing system or ...

  6. Computer virus - Wikipedia

    en.wikipedia.org/wiki/Computer_virus

    Stability test applications are similar programs which have the same effect as power viruses (high CPU usage) but stay under the user's control. They are used for testing CPUs, for example, when overclocking. Spinlock in a poorly written program may cause similar symptoms, if it lasts sufficiently long.

  7. Load (computing) - Wikipedia

    en.wikipedia.org/wiki/Load_(computing)

    An idle computer has a load number of 0 (the idle process is not counted). Each process using or waiting for CPU (the ready queue or run queue) increments the load number by 1. Each process that terminates decrements it by 1. Most UNIX systems count only processes in the running (on CPU) or runnable (waiting for CPU) states.

  8. Memory leak - Wikipedia

    en.wikipedia.org/wiki/Memory_leak

    A memory leak can cause an increase in memory usage and performance run-time, and can negatively impact the user experience. [4] Eventually, in the worst case, too much of the available memory may become allocated and all or part of the system or device stops working correctly, the application fails, or the system slows down vastly due to ...

  9. CPU-bound - Wikipedia

    en.wikipedia.org/wiki/CPU-bound

    Finally, tasks required of modern computers often emphasize quite different components, so that resolving a bottleneck for one task may not affect the performance of another. For these reasons, upgrading a CPU does not always have a dramatic effect. The concept of being CPU-bound is now one of many factors considered in modern computing ...