Messages in this thread | | | Date | Mon, 6 Dec 2021 13:39:25 -0600 | From | Bjorn Helgaas <> | Subject | Re: PCI: latency |
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On Fri, Dec 03, 2021 at 10:30:58PM +0530, Subhashini Rao Beerisetty wrote: > [ Please keep me in CC as I'm not subscribed to the list] > > Hi all, > > We are using the Linux OS on an x86_64 machine. I need to measure the > PCIe latency on my system, does kernel have any latency measurement > module for the PCIe bus?
No, unfortunately not. Maybe perf could help, but I don't know enough to give you any pointers.
There are a couple tune/trace things like [1], but they're specific to hardware that you're probably not using.
[1] https://lore.kernel.org/r/20211116090625.53702-1-yangyicong@hisilicon.com
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