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  2. Sleep (system call) - Wikipedia

    en.wikipedia.org/wiki/Sleep_(system_call)

    On Unix-like and other POSIX operating systems, the sleep() function is called providing a single parameter of type unsigned integer of the number of seconds to sleep. [3] A higher-precision version is the nanosleep() function and the now deprecated usleep. [4] POSIX also allows for choosing clock sources via the extended version clock ...

  3. sleep (command) - Wikipedia

    en.wikipedia.org/wiki/Sleep_(command)

    The sleep instruction suspends the calling process for at least the specified number of seconds (the default), minutes, hours or days. sleep for Unix-like systems is part of the X/Open Portability Guide since issue 2 of 1987. It was inherited into the first version of POSIX and the Single Unix Specification. [1] It first appeared in Version 4 ...

  4. Busy waiting - Wikipedia

    en.wikipedia.org/wiki/Busy_waiting

    In computer science and software engineering, busy-waiting, busy-looping or spinning is a technique in which a process repeatedly checks to see if a condition is true, such as whether keyboard input or a lock is available.

  5. Async/await - Wikipedia

    en.wikipedia.org/wiki/Async/await

    On November 7, 2019, async/await was released on the stable version of Rust. [30] Async functions in Rust desugar to plain functions that return values that implement the Future trait. Currently they are implemented with a finite-state machine .

  6. HTTP persistent connection - Wikipedia

    en.wikipedia.org/wiki/HTTP_persistent_connection

    However, the default connection timeout of Apache httpd 1.3 and 2.0 is as little as 15 seconds [6] [7] and just 5 seconds for Apache httpd 2.2 and above. [8] [9] The advantage of a short timeout is the ability to deliver multiple components of a web page quickly while not consuming resources to run multiple server processes or threads for too ...

  7. Python (programming language) - Wikipedia

    en.wikipedia.org/wiki/Python_(programming_language)

    Python is known as a glue language, [76] able to work very well with many other languages with ease of access. Python uses dynamic typing and a combination of reference counting and a cycle-detecting garbage collector for memory management. [77] It uses dynamic name resolution (late binding), which binds method and variable names during program ...

  8. Batch file - Wikipedia

    en.wikipedia.org/wiki/Batch_file

    A commercial example would be the 1988 Norton Utilities Batch Enhancer (BE) command, where BE DELAY 18 would wait for 1 second, or the free 94-byte WAIT.COM [12] where WAIT 5 would wait for 5 seconds, then return control to the script. Most such programs are 16-bit .COM files, so are incompatible with 64-bit Windows.

  9. Green thread - Wikipedia

    en.wikipedia.org/wiki/Green_thread

    [30] Virtual threads can be cheaply suspended and resumed, making use of JVM support for the special jdk.internal.vm.Continuation class. Virtual threads handle blocking calls by transparently unmounting from the carrier thread where possible, otherwise compensating by increasing the number of platform threads.