ff: getpagesize – R documentation

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getpagesize

Get page size information

Description

The function is used for obtaining the natural OS-specific page size in Bytes. getpagesize returns the OS-specific page size in Bytes for memory mapped files, while getdefaultpagesize returns a suggested page size. getalignedpagesize returns the pagesize as a multiple of the OS-specific page size in Bytes, which is the correct way to specify pagesize in ff.

Usage

getpagesize()
  getdefaultpagesize()
  getalignedpagesize(pagesize)

Arguments

pagesize

a desired pagesize in bytes

Value

An integer giving the page size in Bytes.

Author(s)

Daniel Adler, Jens Oehlschlägel

Examples

getpagesize()
  getdefaultpagesize()
  getalignedpagesize(2000000)

ff

Memory-Efficient Storage of Large Data on Disk and Fast Access Functions

v4.0.4

GPL-2 | GPL-3 | file LICENSE

Authors

Daniel Adler [aut], Christian Gläser [aut], Oleg Nenadic [aut], Jens Oehlschlägel [aut, cre], Martijn Schuemie [aut], Walter Zucchini [aut]

Initial release

2020-10-13