Definitions for readahead
reada·head

WiktionaryRate this definition:0.0 / 0 votes

1. readaheadnoun

   The operation of reading data from a storage medium in advance so that it is immediately available when requested.

WikipediaRate this definition:0.0 / 0 votes

1. Readahead

   Readahead is a system call of the Linux kernel that loads a file's contents into the page cache. This prefetches the file so that when it is subsequently accessed, its contents are read from the main memory (RAM) rather than from a hard disk drive (HDD), resulting in much lower file access latencies.Many Linux distributions use readahead on a list of commonly used files to speed up booting. In such a setup, if the kernel is booted with the profile boot parameter, it will record all file accesses during bootup and write a new list of files to be read during later boot sequences. This will make additional installed services start faster, because they are not included in the default readahead list.In Linux distributions that use systemd, readahead binary (as part of the boot sequence) was replaced by systemd-readahead. However, support for readahead was removed from systemd in its version 217, being described as unmaintained and unable to provide expected performance benefits.Certain experimental page-level prefetching systems have been developed to further improve performance.

WikidataRate this definition:0.0 / 0 votes

1. readahead

   readahead is the file prefetching technology used in the Linux operating system. It is a system call that loads a file's contents into the page cache. When a file is subsequently accessed, its contents are read from physical memory rather than from disk, which is much faster. Many distributions of Linux use readahead on a list of commonly used files to speed up booting. In such a setup, if the kernel is booted with the profile parameter, it will record all file accesses during bootup and write a new list of files to be read before booting. This will make additional installed services start faster, because they are not included in the default readahead list.

How to pronounce readahead?

1. Alex

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How to say readahead in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of readahead in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of readahead in Pythagorean Numerology is: 2

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References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Readahead
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Readahead
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=readahead