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[20090504]
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Article: Thread scheduling and related interfaces in NetBSD 5.0
Mindaugas Rasiukevicius has worked in the SMP corner of the
NetBSD kernel in the past few months, and he has written
an article that introduces the work done by him and others,
see
his posting
for a bit more information, or
his article directly.
The article introduces real-time scheduling and the scheduling
classes found in NetBSD 5.0, and gives an estimate on the
response timeframe that can be expected for real-time applications.
Setting scheduling policy and priority from a userland
application is shown next, and programming examples for
thread affinity, dynamic CPU sets and processor sets are
shown. Besires C APIs, there are also a number or new commands
in NetBSD 5.0 that can be used to control things from the command
line, e.g. to define scheduling behaviour and manipulate
processor sets. My favourite gem is the CPU used in the
cpuctl(8) example, which is identified as "AMD Engineering Sample". :-)
[Tags: Articles, dmesg, posix, pthread, smp]
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