(GSS) A disk scheduling strategy in which requests are served in cycles, in a round-robin manner. To reduce disk arm movements (“seeking”), the set of streams is divided into groups that are served in fixed order. Streams within a group are served according to “SCAN”.
If all clients are assigned to one group, GSS reduces to SCAN, and if all clients are assigned to separate groups, GSS effectively becomes round-robin scheduling. The service order within one group is not fixed, and a stream may in fact be first in one cycle while last in the next. This variation has to be masked by extra buffering but whereas SCAN requires buffer space for all streams, GSS can reuse the buffer for each group and effect a trade-off between seek optimisation and buffer requirements.
noun 1. the branch of mathematics that deals with the structure of mathematical groups and mappings between them. group theory The branch of mathematics concerned with groups and the description of their properties.
noun 1. psychotherapy in which a number of patients discuss their problems together, usually under the leadership of a therapist, using shared knowledge and experiences to provide constructive feedback about maladaptive behavior. noun 1. (psychol) the simultaneous treatment of a number of individuals who are members of a natural group or who are brought together […]
[groop-thingk] /ˈgrupˌθɪŋk/ noun 1. the practice of approaching problems or issues as matters that are best dealt with by consensus of a group rather than by individuals acting independently; conformity. 2. the lack of individual creativity, or of a sense of personal responsibility, that is sometimes characteristic of group interaction. /ˈɡruːpˌθɪŋk/ noun 1. a tendency […]
/ˈɡruːpəˌskjuːl/ noun 1. generally (derogatory) a small group within a political party or movement