[PATCH v2 0/2] improve nvme quiesce time for large amount of namespaces

Chaitanya Kulkarni chaitanyak at nvidia.com
Fri Oct 14 17:30:44 PDT 2022


> The test result:
> Test Scenario: nvme over roce with multipathing, 256 namespaces
> When send I/Os to all namespaces, simulate a path fault, the fail over 
> waiting time
> is more than 20 seconds.
> After analysis, it was found that the total of quiesce waiting time for 
> 256 namespace is
> more than 20 seconds.
> After optimization, same scenario the fail over waiting time is less 
> than 1 second.

I'm not questioning what you are doing, please add these to the 
cover-letter or  patches for reference.

-ck



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