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Sync (Unix)

sync is a standard system call in the Unix operating system, which commits all data from the kernel filesystem buffers to non-volatile storage, i.e., data which has been scheduled for writing via low-level I/O system calls. Higher-level I/O layers such as stdio may maintain separate buffers of their own.

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Performance controversies

HdparmFreeBSDSCSISATANative Command Queuing
11 related topics

Overview

System callUnixKernelFilesystemBuffers
19 related topics

Database use

DurabilityNon-volatile storagePostgreSQLTransaction log
4 related topics

Error reporting and checking

Write()FflushPage cacheMsync
4 related topics

Topics to explore

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Overview

Database use

Error reporting and checking

Performance controversies

Advanced semantic analysis

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Map overview Semantic statistics

Sync (Unix)

Nodes43
Edges42
Triples5
Avg. degree1.95
Density0.046512
Components1

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Important terminology Word statistics

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Important terminology

sync data system cache also calls call performance write buffers use commits function kernel non-volatile linux storage may applications unix

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
stdio may maintain separate buffers of their own.As a function in Cinstance ofHigher-level I/O layers0.80text
thesyncinstance ofHigher-level I/O layers0.80text
Perlinstance ofand similarly named functions in other languages0.80text
Node.jsinstance ofand similarly named functions in other languages0.80text
hdparm -F will instruct the HDD controller to flush the on-drive write cache bufferinstance ofTools0.80text

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