Changes between Version 13 and Version 14 of processus_thread


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Timestamp:
Jul 10, 2016, 8:19:21 PM (8 years ago)
Author:
alain
Comment:

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  • processus_thread

    v13 v14  
    77The PID (Process Identifier) is coded on 32 bits. It is unique in the system, and has a fixed format:  The 16 MSB (CXY) contain the owner cluster identifier. The  16 LSB bits (LPID) contain the local process index in owner cluster. The '''owner cluster''' is therefore defined by PID MSB bits.
    88
    9 To avoid contention, the process descriptor of a P process, and the associated structures, such as the Page Table, or the File Descriptors Table  are  (partially) replicated in all clusters containing at least one thread of P.
     9To avoid contention, the process descriptor of a P process, and the associated structures, such as the Page Table, or the Open File Descriptors Table  are  (partially) replicated in all clusters containing at least one thread of P.
    1010
    1111As it exists several copies of the process descriptors, ALMOS-MK defines a reference process descriptor, located in the '''reference cluster''', and the other copies are used as local caches.