Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Test_and_Test-and-set> ?p ?o }
Showing triples 1 to 45 of
45
with 100 triples per page.
- Test_and_Test-and-set abstract "In computer science, the test-and-set CPU instruction is used to implement mutual exclusion in multiprocessor environments. Although a correct lock can be implemented with test-and-set, it can lead to resource contention in busy lock (caused by bus locking and cache invalidation when test-and-set operation needs to access memory atomically).To lower the overhead a more elaborate locking protocol test and test-and-setis used. The main idea is not to spin in test-and-set but increase the likelihood of successful test-and-set by using the following entry protocol to the lock:boolean locked := false // shared lock variableprocedure EnterCritical() { do { while (locked == true) skip // spin until lock seems free } while TestAndSet(locked) // actual atomic locking}Exit protocol is:procedure ExitCritical() { locked := false}The entry protocol uses normal memory reads to spin, waiting for the lock to become free. Test-and-set is only used to try to get the lock when normal memory read says it's free. Thus the expensive atomic memory operations happens less often than in simple spin around test-and-set.If the programming language used supports short-circuit evaluation, the entry protocol could be implemented as: procedure EnterCritical() { while ( locked == true or TestAndSet(locked) == true ) skip // spin until locked }".
- Test_and_Test-and-set wikiPageID "2084574".
- Test_and_Test-and-set wikiPageLength "2519".
- Test_and_Test-and-set wikiPageOutDegree "24".
- Test_and_Test-and-set wikiPageRevisionID "645609120".
- Test_and_Test-and-set wikiPageWikiLink Anti-pattern.
- Test_and_Test-and-set wikiPageWikiLink Atomic_(computer_science).
- Test_and_Test-and-set wikiPageWikiLink Busy_waiting.
- Test_and_Test-and-set wikiPageWikiLink Category:Computer_arithmetic.
- Test_and_Test-and-set wikiPageWikiLink Category:Concurrency_control.
- Test_and_Test-and-set wikiPageWikiLink Computer_science.
- Test_and_Test-and-set wikiPageWikiLink Concurrent_computing.
- Test_and_Test-and-set wikiPageWikiLink Concurrent_programming.
- Test_and_Test-and-set wikiPageWikiLink Double-checked_locking.
- Test_and_Test-and-set wikiPageWikiLink Fetch-and-add.
- Test_and_Test-and-set wikiPageWikiLink Instruction_(computer_science).
- Test_and_Test-and-set wikiPageWikiLink Instruction_set.
- Test_and_Test-and-set wikiPageWikiLink Linearizability.
- Test_and_Test-and-set wikiPageWikiLink Lock_(computer_science).
- Test_and_Test-and-set wikiPageWikiLink Multiprocessing.
- Test_and_Test-and-set wikiPageWikiLink Multiprocessor.
- Test_and_Test-and-set wikiPageWikiLink Mutual_exclusion.
- Test_and_Test-and-set wikiPageWikiLink Optimization_(computer_science).
- Test_and_Test-and-set wikiPageWikiLink Parallel_computing.
- Test_and_Test-and-set wikiPageWikiLink Parallel_processor.
- Test_and_Test-and-set wikiPageWikiLink Parallel_programming.
- Test_and_Test-and-set wikiPageWikiLink Program_optimization.
- Test_and_Test-and-set wikiPageWikiLink Programming_idiom.
- Test_and_Test-and-set wikiPageWikiLink Programming_language.
- Test_and_Test-and-set wikiPageWikiLink Resource_contention.
- Test_and_Test-and-set wikiPageWikiLink Short-circuit_evaluation.
- Test_and_Test-and-set wikiPageWikiLink System_programming.
- Test_and_Test-and-set wikiPageWikiLink Test-and-set.
- Test_and_Test-and-set wikiPageWikiLinkText "Test and Test-and-set".
- Test_and_Test-and-set hasPhotoCollection Test_and_Test-and-set.
- Test_and_Test-and-set wikiPageUsesTemplate Template:Reflist.
- Test_and_Test-and-set subject Category:Computer_arithmetic.
- Test_and_Test-and-set subject Category:Concurrency_control.
- Test_and_Test-and-set comment "In computer science, the test-and-set CPU instruction is used to implement mutual exclusion in multiprocessor environments. Although a correct lock can be implemented with test-and-set, it can lead to resource contention in busy lock (caused by bus locking and cache invalidation when test-and-set operation needs to access memory atomically).To lower the overhead a more elaborate locking protocol test and test-and-setis used.".
- Test_and_Test-and-set label "Test and Test-and-set".
- Test_and_Test-and-set sameAs m.06l3ny.
- Test_and_Test-and-set sameAs Q7705745.
- Test_and_Test-and-set sameAs Q7705745.
- Test_and_Test-and-set wasDerivedFrom Test_and_Test-and-set?oldid=645609120.
- Test_and_Test-and-set isPrimaryTopicOf Test_and_Test-and-set.