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Zambre__Rohit
Beginner
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PCIe wire latency from RC to EP on Xeon Haswell

Hi,

I'd like to know an estimate of the latency between the Root Complex (RC) and an Endpoint (EP) on a Haswell machine (Intel(R) Xeon(R) CPU E7-8867 v3 @ 2.50GHz). Could someone provide me with this latency or point me towards how to possibly measure it?

I am making a model for the latencies involved in sending a message from a sender node to a receiver node; the PCIe wire latency is a missing part.

Thank you,
Rohit Zambre
Ph.D. Student
University of California, Irvine

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