G - Physics
06
F
G06F 9/46 (2006.01) G06F 9/48 (2006.01)
Patent
CA 2216803
A computer system (e.g. running under the Unix operating system) comprises a scheduler for scheduling a number of processes. The scheduler comprises a number of Policy scheduler classes each of which performs the same scheduling algorithm, but each of which has a separate parameter table for independently adjusting the behaviour of that scheduler class. This gives the system administrator much more control over how groups of applications, individual applications or parts of applications are scheduled. A Policy scheduler monitor periodically scans the processes, accessing a database to check whether each process is allocated to its required scheduler class and, if not, assigns the process to the required class. The database consists of an alias table, which allocates mnemonic names to processes, and a workmix table, which associates the mnemonics with scheduler classes.
Un ordinateur (utilisant le système d'exploitation Unix) est doté d'un ordonnanceur de processus. Cet ordonnanceur comprend un certain nombre de classes d'ordonnancement de directives qui exécutent toutes le même algorithme, mais qui ont chacune une table de paramètres distincte pour ajuster leurs comportements respectifs de façon indépendante. Un contrôleur d'ordonnancement de directives balaie périodiquement les processus et consulte une base de données pour vérifier si chaque processus a été affecté à la classe d'ordonnancement appropriée; si tel n'est pas le cas, il affecte le processus à la classe appropriée. La base de données est constituée d'une table de pseudonymes qui attribue des noms mnémoniques aux processus, et d'une table de travail qui associe ces noms mnémoniques aux classes d'ordonnancement.
Borden Ladner Gervais Llp
International Computers Limited
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