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  2. List of PHP accelerators - Wikipedia

    en.wikipedia.org/wiki/List_of_PHP_accelerators

    Launched in 2001, ionCube PHP Accelerator (PHPA) was the first freely available PHP accelerator to compete with the commercial Zend Cache product. Created before ionCube Ltd. was founded and at a time when the performance of PHP was regarded as lackluster when compared to other popular web programming languages, [citation needed] PHPA showed that PHP can compete with other languages ...

  3. Processor affinity - Wikipedia

    en.wikipedia.org/wiki/Processor_affinity

    Processor affinity, or CPU pinning or "cache affinity", enables the binding and unbinding of a process or a thread to a central processing unit (CPU) or a range of CPUs, so that the process or thread will execute only on the designated CPU or CPUs rather than any CPU.

  4. Thundering herd problem - Wikipedia

    en.wikipedia.org/wiki/Thundering_herd_problem

    In computer science, the thundering herd problem occurs when a large number of processes or threads waiting for an event are awoken when that event occurs, but only one process is able to handle the event. When the processes wake up, they will each try to handle the event, but only one will win.

  5. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    It alerts the client to wait for a final response. The message consists only of the status line and optional header fields, and is terminated by an empty line. As the HTTP/1.0 standard did not define any 1xx status codes, servers must not [ note 1 ] send a 1xx response to an HTTP/1.0 compliant client except under experimental conditions.

  6. Reference counting - Wikipedia

    en.wikipedia.org/wiki/Reference_counting

    The frequent updates it involves are a source of inefficiency. While tracing garbage collectors can impact efficiency severely via context switching and cache line faults, they collect relatively infrequently, while accessing objects is done continually. Also, less importantly, reference counting requires every memory-managed object to reserve ...

  7. Cache manifest in HTML5 - Wikipedia

    en.wikipedia.org/wiki/Cache_manifest_in_HTML5

    If the web application exceeds more than one page then each page must have a manifest attribute that points to the cache manifest. Every page referencing the manifest will be stored locally. [6] The cache manifest file is a text file located in another part of the server. It must be served with content type text/cache-manifest [7]

  8. Database caching - Wikipedia

    en.wikipedia.org/wiki/Database_caching

    Database caching is a process included in the design of computer applications which generate web pages on-demand (dynamically) by accessing backend databases.. When these applications are deployed on multi-tier environments that involve browser-based clients, web application servers and backend databases, [1] [2] middle-tier database caching is used to achieve high scalability and performance.

  9. Static random-access memory - Wikipedia

    en.wikipedia.org/wiki/Static_random-access_memory

    Examples include the ubiquitous 28-pin 8K × 8 and 32K × 8 chips (often but not always named something along the lines of 6264 and 62C256 respectively), as well as similar products up to 16 Mbit per chip. Synchronous – all timings are initiated by the clock edges. Address, data in and other control signals are associated with the clock signals.