Hi, all,
I run some benchmarks with Ruby and O3CPU. As I look into the debug trace file,
I find many line say "[Version 0, L1Cache, mandatoryQueue_in]: Recycling."
After I grep "recycle()" function in src/mem folder, I find it's invoked in an
action in SLICC files. e.g., the code snippet below is from
MOESI_CMP_directory-L1cache.sm.
action(zz_recycleMandatoryQueue, "\z", desc="Send the head of the mandatory
queue to the back of the queue.") {
mandatoryQueue_in.recycle();
}
My question is why do we need to put the request which is at the head of the
mandatory queue to the back of the queue? Any help will be highly appreciated.
Yuan
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