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Should this perhaps be a probe rather?

- Andreas Hansson


On March 4, 2015, 9 a.m., Nilay Vaish wrote:
> 
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> http://reviews.gem5.org/r/2680/
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> (Updated March 4, 2015, 9 a.m.)
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> 
> Review request for Default.
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> Repository: gem5
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> 
> Description
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> 
> Changeset 10735:c8c9b6d902cb
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> cpu: o3: record cpi stacks
> 
> This patch labels each empty slot of the commit width every cycle using four
> different types of delays: misprediction, fetch, memory and execution.  For
> memory delays, we check if a memory reference instruction is at the head of 
> the
> rob.  Otherwise, we label the slot as execution delayed.  If the rob is empty,
> we assume the reason for the vacancy to be delay in fetching the instuction.
> Lastly, if the cpu is squashing instructions, then we assume that slots are
> going vacant because of misprediction.
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> 
> Diffs
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>   src/cpu/o3/commit.hh 8a20e2a1562d 
>   src/cpu/o3/commit_impl.hh 8a20e2a1562d 
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> Diff: http://reviews.gem5.org/r/2680/diff/
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> 
> Testing
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> 
> Thanks,
> 
> Nilay Vaish
> 
>

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