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  Multi-threading and isolation of tasks  (Read 5176 times)
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Offline Roquen

JGO Kernel


Medals: 516



« Posted 2013-01-31 09:41:44 »

In any number of threads I've talked about the importance of temporal memory access on performance.  Additionally, in the context of multi-threaded apps I've babbled about having clean & simple isolation of task (betweeen threads) both for simplicity of concurrency and to prevent cache thrashing.  I just ran across this blog which gives a real world example: Core's don't like to share.  You might also want to take a peek at (same blogger): Write combining is not your friend.
Offline Roquen

JGO Kernel


Medals: 516



« Reply #1 - Posted 2013-02-14 20:57:46 »

From flipcode: another blog on impact of cache - http://mechanical-sympathy.blogspot.co.uk/2013/02/cpu-cache-flushing-fallacy.html
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