rotational latency - определение. Что такое rotational latency
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Что (кто) такое rotational latency - определение

TIME REQUIRED FOR DATA TO TRAVERSE A NETWORK
Network Latency; Network latency; Communication latency; Internet delay
Найдено результатов: 148
rotational latency         
  • A plot showing dependency of transfer rate on cylinder
  • A hard disk head on an access arm resting on a hard disk platter
  • IBM PC XT}} hard disk drive
Rotational delay; Seek time; Disk access time; Rotational latency; Disk seek; Seek delay; Short stroking; Throughput (disk drive); Disk drive performance characteristics; Disk-drive performance characteristics; Data transfer rate (disk drive); Short-stroking; Short-Stroking; Hard disk rotational latency
The time for the start of the required sector on a disk to appear underneath the read/write head. The worst case is where it has just passed the head when the request is received. For a disk drive with N heads per surface, rotating at R revolutions per minute, the average rotational latency will be L = 30/NR seconds. Rotational latency is one component of access time.
Hard disk drive performance characteristics         
  • A plot showing dependency of transfer rate on cylinder
  • A hard disk head on an access arm resting on a hard disk platter
  • IBM PC XT}} hard disk drive
Rotational delay; Seek time; Disk access time; Rotational latency; Disk seek; Seek delay; Short stroking; Throughput (disk drive); Disk drive performance characteristics; Disk-drive performance characteristics; Data transfer rate (disk drive); Short-stroking; Short-Stroking; Hard disk rotational latency
Higher performance in hard disk drives comes from devices which have better performance characteristics. These performance characteristics can be grouped into two categories: access time and data transfer time (or rate).
seek time         
  • A plot showing dependency of transfer rate on cylinder
  • A hard disk head on an access arm resting on a hard disk platter
  • IBM PC XT}} hard disk drive
Rotational delay; Seek time; Disk access time; Rotational latency; Disk seek; Seek delay; Short stroking; Throughput (disk drive); Disk drive performance characteristics; Disk-drive performance characteristics; Data transfer rate (disk drive); Short-stroking; Short-Stroking; Hard disk rotational latency
<storage> The time it takes for a disk drive to move its head(s) from one track to another. The seek time depends on the power of the servo, the mass of the heads, the number of tracks traversed and the time taken to position the heads over the target track accurately enough to start data transfer. See also: average seek time, minimum seek time, {maximum seek time}. (1997-07-15)
CAS latency         
TIME DELAY BETWEEN DATA READ COMMAND AND AVAILABILITY OF DATA IN A COMPUTER'S RAM
Cas latency; Common access strobe; Memory access time; CAS Latency
Column Address Strobe (CAS) latency, or CL, is the delay in clock cycles between the READ command and the moment data is available. In asynchronous DRAM, the interval is specified in nanoseconds (absolute time).
latency         
WIKIMEDIA DISAMBIGUATION PAGE
Latent; Latency (disambiguation); Latent (disambiguation)
<communications> 1. The time it takes for a packet to cross a network connection, from sender to receiver. 2. The period of time that a frame is held by a network device before it is forwarded. Two of the most important parameters of a communications channel are its latency, which should be low, and its bandwidth, which should be high. Latency is particularly important for a synchronous protocol where each packet must be acknowledged before the next can be transmitted. (2000-02-27)
Latent         
WIKIMEDIA DISAMBIGUATION PAGE
Latent; Latency (disambiguation); Latent (disambiguation)
·adj Not visible or apparent; hidden; springs of action.
Rotational energy         
KINETIC ENERGY OF ROTATING BODY WITH MOMENT OF INERTIA AND ANGULAR VELOCITY
Angular kinetic energy; Rotational kinetic energy
Rotational energy or angular kinetic energy is kinetic energy due to the rotation of an object and is part of its total kinetic energy. Looking at rotational energy separately around an object's axis of rotation, the following dependence on the object's moment of inertia is observed:Resnick, R.
Latency (engineering)         
TIME INTERVAL BETWEEN AN INPUT AND A RESPONSE
Low latency; Lag time; Delayed data feed; Low-latency; Transit delay; Network Lag; One-way latency; Motion To Photon Latency
Latency, from a general point of view, is a time delay between the cause and the effect of some physical change in the system being observed. Lag, as it is known in gaming circles, refers to the latency between the input to a simulation and the visual or auditory response, often occurring because of network delay in online games.
Latency (audio)         
DELAY IN AUDIO SYSTEMS
Latency (audio engineering); Audio latency; Mouth-to-ear delay
Latency refers to a short period of delay (usually measured in milliseconds) between when an audio signal enters a system and when it emerges. Potential contributors to latency in an audio system include analog-to-digital conversion, buffering, digital signal processing, transmission time, digital-to-analog conversion and the speed of sound in the transmission medium.
latent         
WIKIMEDIA DISAMBIGUATION PAGE
Latent; Latency (disambiguation); Latent (disambiguation)
a.
Concealed, hidden, secret, occult, veiled, unseen, abeyant.

Википедия

Network delay

Network delay is a design and performance characteristic of a telecommunications network. It specifies the latency for a bit of data to travel across the network from one communication endpoint to another.: 5  It is typically measured in multiples or fractions of a second. Delay may differ slightly, depending on the location of the specific pair of communicating endpoints. Engineers usually report both the maximum and average delay, and they divide the delay into several parts:

  • Processing delay – time it takes a router to process the packet header
  • Queuing delay – time the packet spends in routing queues
  • Transmission delay – time it takes to push the packet's bits onto the link
  • Propagation delay – time for a signal to propagate through the media

A certain minimum level of delay is experienced by signals due to the time it takes to transmit a packet serially through a link. This delay is extended by more variable levels of delay due to network congestion. IP network delays can range from a few milliseconds to several hundred milliseconds.