[ovs-dev] CPU performance measurement - OvS+DPDK

[Shahaji Bhosle]

Hi Ilya,
Just trying to figure out how much the CPU processing cycles are being used
using the "dpif-netdev/pmd-stats-show" command and what I am seeing that
when I start the test idle is 100% and then processing cycles just keep
increasing as long as I keep running the test, I was hoping it to stabilize
at some point but it does not. Is there any other way to find out how much
CPU is being utilized for the test.

Also, I am seeing drop and errs in PHY-to-PHY, coming ixia
--dpdk128<-ovs+dpdk-> dpdk129 -- ixia, just trying to understand whats
going on with this. I do have about 8K IP lookups, the actions is go to the
other port with mod_dl_dst of the next_hop.

OFPST_PORT reply (xid=0x2): 3 ports
  port 129: rx pkts=28188204935, bytes=3337048521914, drop=0, errs=5381086,
frame=?, over=?, crc=?
           tx pkts=28251930544, bytes=3340826046788, drop=*52764491*,
errs=0, coll=?
  port LOCAL: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=0, bytes=0, drop=0, errs=0, coll=0
  port 128: rx pkts=28305064186, bytes=3344059379368, drop=0, errs=
*21967104*, frame=?, over=?, crc=?
           tx pkts=28188542419, bytes=3337022565678, drop=*32176*, errs=0,
coll=?

Thanks, Shahaji