command overhead

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Related to command overhead: command processing overhead time

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Noun

command overhead - (computer science) the processing time required by a device prior to the execution of a command

command processing overhead, command processing overhead time, overhead

computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures

access 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"

processing time - the time it takes to complete a prescribed procedure; "they increased output by decreasing processing time"

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The higher the capacity of the drive, the higher the areal density; the higher the areal density, the more bits you get under the head in the same amount of time." That, Norblitt adds, translates into data being output faster.<p>The read speeds that Seagate has achieved, and will be demonstrating at the show, are about 550 megabytes per second (including command overhead).

Seagate, AMD Showcase Super Fast SATA Drive

The new drives are available in 36, 73 and 147 GB capacities and feature large, 16 MB cache sizes to minimize command overhead and improve average read/write response times.

Hitachi delivers extreme performance and reliability with new 15K RPM Enterprise hard drives

Packetized devices decrease command overhead: by transferring commands, data, and status using DT (dual transition) data phases instead of slower asynchronous phases.

In step with the times: new features speed Ultra320 SCSI. (From the SCSI Expert)