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- Thread_pool_pattern abstract "In computer programming, the thread pool pattern (also replicated workers or worker-crew model) is where a number of threads are created to perform a number of tasks, which are usually organized in a queue. The results from the tasks being executed might also be placed in a queue, or the tasks might return no result (for example, if the task is for animation). Typically, there are many more tasks than threads. As soon as a thread completes its task, it will request the next task from the queue until all tasks have been completed. The thread can then terminate, or sleep until there are new tasks available.The number of threads used is a parameter that can be tuned to provide the best performance.Additionally, the number of threads can be dynamic based on the number of waiting tasks.For example, a web server can add threads if numerous web page requests come in and can remove threads when those requests taper down.The cost of having a larger thread pool is increased resource usage.The algorithm used to determine when to create or destroy threads will have an impact on the overall performance: create too many threads, and resources are wasted and time also wasted creating any unused threads destroy too many threads and more time will be spent later creating them again creating threads too slowly might result in poor client performance (long wait times) destroying threads too slowly may starve other processes of resourcesThe algorithm chosen will depend on the problem and the expected usage patterns.If the number of tasks is very large, then creating a thread for each one may be impractical.Another advantage of using a thread pool over creating a new thread for each task is thread creation and destruction overhead is negated, which may result in better performance and better system stability. Creating and destroying a thread and its associated resources is an expensive process in terms of time. An excessive number of threads will also waste memory, and context-switching between the runnable threads also damages performance. For example, a socket connection to another machine—which might take thousands (or even millions) of cycles to drop and re-establish—can be avoided by associating it with a thread which lives over the course of more than one transaction.When implementing this pattern, the programmer should ensure thread-safety of the queue. In Java, you can synchronize the relevant method using the synchronized keyword. This will bind the block modified with synchronized into one atomic structure, therefore forcing any threads using the associated resource to wait until there are no threads using the resource. As a drawback to this method, synchronization is rather expensive. You can also create an object that holds a list of all the jobs in a queue, which could be a singleton.Typically, a thread pool executes on a single computer. However, thread pools are conceptually related to server farms in which a master process, which might be a thread pool itself, distributes tasks to worker processes on different computers, in order to increase the overall throughput. Embarrassingly parallel problems are highly amenable to this approach.".
- Thread_pool_pattern thumbnail Thread_pool.svg?width=300.
- Thread_pool_pattern wikiPageExternalLink Joshthreadpool.asp.
- Thread_pool_pattern wikiPageExternalLink work_queue.asp.
- Thread_pool_pattern wikiPageExternalLink citation.cfm?id=346320.
- Thread_pool_pattern wikiPageExternalLink 1753196.1753218.
- Thread_pool_pattern wikiPageExternalLink ms973903.aspx.
- Thread_pool_pattern wikiPageExternalLink query-by-slice-parallel-execute-join-thread-pool-pattern.html.
- Thread_pool_pattern wikiPageExternalLink creating-a-notifying-blocking-thread-pool-executor.html.
- Thread_pool_pattern wikiPageExternalLink smartthreadpool.aspx.
- Thread_pool_pattern wikiPageExternalLink thread_pooling.asp.
- Thread_pool_pattern wikiPageExternalLink OM-01.pdf.
- Thread_pool_pattern wikiPageExternalLink au-threadingpython.
- Thread_pool_pattern wikiPageExternalLink j-jtp0730.html.
- Thread_pool_pattern wikiPageExternalLink threadpool.shtml.
- Thread_pool_pattern wikiPageExternalLink java-design-patterns.
- Thread_pool_pattern wikiPageExternalLink threadpool11.
- Thread_pool_pattern wikiPageExternalLink ctpl.
- Thread_pool_pattern wikiPageID "764016".
- Thread_pool_pattern wikiPageLength "6239".
- Thread_pool_pattern wikiPageOutDegree "42".
- Thread_pool_pattern wikiPageRevisionID "671365384".
- Thread_pool_pattern wikiPageWikiLink .NET_Framework.
- Thread_pool_pattern wikiPageWikiLink Ami_Bar.
- Thread_pool_pattern wikiPageWikiLink Amir_Kirsh.
- Thread_pool_pattern wikiPageWikiLink Animation.
- Thread_pool_pattern wikiPageWikiLink Binildas_C._A..
- Thread_pool_pattern wikiPageWikiLink Brian_Goetz.
- Thread_pool_pattern wikiPageWikiLink Category:Software_design_patterns.
- Thread_pool_pattern wikiPageWikiLink Category:Threads_(computing).
- Thread_pool_pattern wikiPageWikiLink Computer_programming.
- Thread_pool_pattern wikiPageWikiLink Concurrency_pattern.
- Thread_pool_pattern wikiPageWikiLink David_Carmona.
- Thread_pool_pattern wikiPageWikiLink Design_pattern_(computer_science).
- Thread_pool_pattern wikiPageWikiLink Douglas_C._Schmidt.
- Thread_pool_pattern wikiPageWikiLink Embarrassingly_parallel.
- Thread_pool_pattern wikiPageWikiLink Grand_Central_Dispatch.
- Thread_pool_pattern wikiPageWikiLink Irfan_Pyarali.
- Thread_pool_pattern wikiPageWikiLink Jon_Skeet.
- Thread_pool_pattern wikiPageWikiLink Linearizability.
- Thread_pool_pattern wikiPageWikiLink Marina_Spivak.
- Thread_pool_pattern wikiPageWikiLink Noah_Gift.
- Thread_pool_pattern wikiPageWikiLink Object_pool_pattern.
- Thread_pool_pattern wikiPageWikiLink Parallel_Extensions.
- Thread_pool_pattern wikiPageWikiLink Parallel_computing.
- Thread_pool_pattern wikiPageWikiLink Parallelization.
- Thread_pool_pattern wikiPageWikiLink Performance_tuning.
- Thread_pool_pattern wikiPageWikiLink Philipp_Bachmann.
- Thread_pool_pattern wikiPageWikiLink Pradeep_Kumar_Sahu.
- Thread_pool_pattern wikiPageWikiLink Queue_(abstract_data_type).
- Thread_pool_pattern wikiPageWikiLink Queue_(data_structure).
- Thread_pool_pattern wikiPageWikiLink Ron_Cytron.
- Thread_pool_pattern wikiPageWikiLink Server_farm.
- Thread_pool_pattern wikiPageWikiLink Singleton_pattern.
- Thread_pool_pattern wikiPageWikiLink Software_design_pattern.
- Thread_pool_pattern wikiPageWikiLink Stability_Model.
- Thread_pool_pattern wikiPageWikiLink Staged_event-driven_architecture.
- Thread_pool_pattern wikiPageWikiLink Task_(computers).
- Thread_pool_pattern wikiPageWikiLink Task_(computing).
- Thread_pool_pattern wikiPageWikiLink Thread-safe.
- Thread_pool_pattern wikiPageWikiLink Thread_(computer_science).
- Thread_pool_pattern wikiPageWikiLink Thread_(computing).
- Thread_pool_pattern wikiPageWikiLink Thread_safety.
- Thread_pool_pattern wikiPageWikiLink Uri_Twig.
- Thread_pool_pattern wikiPageWikiLink Web_page.
- Thread_pool_pattern wikiPageWikiLink Web_server.
- Thread_pool_pattern wikiPageWikiLink Yibei_Ling,_Tracy_Mullen_and_Xiaola_Lin.
- Thread_pool_pattern wikiPageWikiLink File:Thread_pool.svg.
- Thread_pool_pattern wikiPageWikiLinkText "Thread pool pattern".
- Thread_pool_pattern wikiPageWikiLinkText "Thread pool".
- Thread_pool_pattern wikiPageWikiLinkText "Thread pooling".
- Thread_pool_pattern wikiPageWikiLinkText "Thread pools".
- Thread_pool_pattern wikiPageWikiLinkText "pool of threads".
- Thread_pool_pattern wikiPageWikiLinkText "thread pool pattern".
- Thread_pool_pattern wikiPageWikiLinkText "thread pool".
- Thread_pool_pattern wikiPageWikiLinkText "thread pooling".
- Thread_pool_pattern wikiPageWikiLinkText "thread pools".
- Thread_pool_pattern wikiPageWikiLinkText "thread-pool".
- Thread_pool_pattern wikiPageWikiLinkText "worker pools".
- Thread_pool_pattern hasPhotoCollection Thread_pool_pattern.
- Thread_pool_pattern wikiPageUsesTemplate Template:Citation_style.
- Thread_pool_pattern subject Category:Software_design_patterns.
- Thread_pool_pattern subject Category:Threads_(computing).
- Thread_pool_pattern type Pattern.
- Thread_pool_pattern comment "In computer programming, the thread pool pattern (also replicated workers or worker-crew model) is where a number of threads are created to perform a number of tasks, which are usually organized in a queue. The results from the tasks being executed might also be placed in a queue, or the tasks might return no result (for example, if the task is for animation). Typically, there are many more tasks than threads.".
- Thread_pool_pattern label "Thread pool pattern".
- Thread_pool_pattern sameAs الگوی_مخزن_نخ.
- Thread_pool_pattern sameAs Szálkészlet_programtervezési_minta.
- Thread_pool_pattern sameAs Thread_pool.
- Thread_pool_pattern sameAs m.039gjt.
- Thread_pool_pattern sameAs Q3990847.
- Thread_pool_pattern sameAs Q3990847.
- Thread_pool_pattern sameAs 线程池.
- Thread_pool_pattern wasDerivedFrom Thread_pool_pattern?oldid=671365384.
- Thread_pool_pattern depiction Thread_pool.svg.
- Thread_pool_pattern isPrimaryTopicOf Thread_pool_pattern.