rotational latency

Thesaurus

Noun

rotational latency - (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write headlatencycomputer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structuresaccess time - (computer science) the interval between the time data is requested by the system and the time the data is provided by the drive; "access time is the sum of seek time and rotational latency and command processing overhead"interval, time interval - a definite length of time marked off by two instants

rotational latency

[rō′tā·shən·əl ′lāt·ən·sē] (computer science) The time required, following an order to read or write information in disk storage, for the location of the information to revolve beneath the appropriate read/write head.

rotational latency

The time for the start of the required sector on a disk toappear underneath the read/write head. The worst case iswhere it has just passed the head when the request isreceived. For a disk drive with N heads per surface,rotating at R revolutions per minute, the average rotationallatency will be

L = 30/NR seconds.

Rotational latency is one component of access time.

rotational latency

Related to rotational latency: seek time

noun

Synonyms for rotational latency

noun (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head

Synonyms

latency

Related Words

computer science
computing
access time
interval
time interval

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