VxFlex OS Performance

Hi,

I am running a 4 node cluster , n/w cards as 25G . Do we have a baseline / benchmark for IOPS & Latency with 8K BS , 70/30 RW and 128 QD ? 14 G servers, and VxFlex 2.6 being used.

I have followed the tuning guide, but not getting expected performance. Any other recommendations ?

Thanks

KG