RE: [PATCH] scheduler: introduce SCHED_RESET_ON_FORK scheduling policy flag, Second try

From: Raz
Date: Fri Jul 03 2009 - 08:33:18 EST


Lennart Hello
I had the same problem several years ago, but in the servers arena.
in order to solve it I partitioned the solution to two:
1. UNI processors machines
2. SMP processors machines

In UNI processor I created a RT kthread that polls over RTC device.
The observed jitter was 400us.
in SMP processors machine we created a new type of scheduling , called offline.
what i did it to offload a processor and assign it task. jitter is
250us under heavy load. solution is open source and can be found at :
http://sos-linux.svn.sourceforge.net/viewvc/sos-linux/offsched/Documentation/

Raz
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