X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=docs%2Freport%2Fvpp_performance_tests%2Fnf_service_density%2Fvnf_service_chains.rst;h=90945d357278691897b2c2511472b63f6c2fc4ff;hp=8648c0c426246ea829f323dd9841012ef9369c07;hb=f5319efb9812adee82aecca22ce80a7469752728;hpb=2e250ffd8711be1247353d403a68573c0d232e8e

diff --git a/docs/report/vpp_performance_tests/nf_service_density/vnf_service_chains.rst b/docs/report/vpp_performance_tests/nf_service_density/vnf_service_chains.rst
index 8648c0c426..90945d3572 100644
--- a/docs/report/vpp_performance_tests/nf_service_density/vnf_service_chains.rst
+++ b/docs/report/vpp_performance_tests/nf_service_density/vnf_service_chains.rst
@@ -37,6 +37,8 @@ Throughput graphs for VNF service chains are generated by multiple
 executions of tests covering a range of VNF service densities
 defined as [Number of Service Chains] x [Number of VNFs per Service
 Chain]. The results are presented in the service density graph.
+Each graph includes the results of both configurations: one NF per physical
+core and two NFs per physical core and their relative difference.
 
 Additional information about graph data:
 
@@ -47,12 +49,12 @@ Additional information about graph data:
 
 #. **Y-axis Labels**: number of service chains.
 
-#. **Z-axis Color Scale**: lists 64B Packet Throughput (mean MRR/NDR/PDR value)
-   in Mpps.
+#. **Z-axis Color Scale**: lists 64B/IMIX Packet Throughput
+   (mean MRR/NDR/PDR value) in Mpps or the Relative Difference.
 
 #. **Hover Information**: specific test substring listing vhost-chain-vm
    combinations, number of runs executed, mean MRR/NDR/PDR throughput in Mpps,
-   standard deviation.
+   standard deviation for both configurations and their relative difference.
 
 .. note::