docs: updated report intro in packet_throughput_graphs

Change-Id: I3bf70cc7e48ef2134841bc4bf9300cda6a118cb3
Signed-off-by: Maciek Konstantynowicz <mkonstan@cisco.com>
(cherry picked from commit 6898a7671b00c5e5c48c58fdfaeb47bb7148d4bb)

1 files changed, 68 insertions, 5 deletions

diff --git a/docs/report/vpp_performance_tests/packet_throughput_graphs/index.rst b/docs/report/vpp_performance_tests/packet_throughput_graphs/index.rst
index d5bc33bf3e..aae566e9e4 100644
--- a/docs/report/vpp_performance_tests/packet_throughput_graphs/index.rst
+++ b/docs/report/vpp_performance_tests/packet_throughput_graphs/index.rst
@@ -8,11 +8,74 @@
 Packet Throughput
 =================
 
-Throughput graphs are generated by multiple executions of the same
-performance tests across physical testbeds hosted LF FD.io labs: 3n-hsw,
-2n-skx, 2n-skx. Box-and-Whisker plots are used to display variations in
-measured throughput values, without making any assumptions of the
-underlying statistical distribution.
+Throughput graphs are generated based on the results data obtained from
+the |csit-release| test jobs. In order to verify benchmark results
+repeatibility selected, CSIT performance tests are executed multiple
+times (target: 10 times) on each physical testbed type. Box-and-Whisker
+plots are used to display variations in measured throughput values.
+
+Lists of tests selected for multiple execution and graphing are captured
+per testbed type in `test_select_list_{testbed_type}.md
+<https://git.fd.io/csit/tree/docs/job_specs>`_ files.
+
+Graphs are split into sections as follows:
+
+#. **Level-1: VPP packet path and lookup types**
+
+   - **L2 Ethernet Switching**: L2 bridge-doman, L2 cross-connect and L2 patch
+   - **IPv4 Routing**: IPv4 routing with /32 prefixes
+   - **IPv6 Routing**: IPv6 routing with /128 prefixes
+   - **SRv6 Routing**: SRv6 with IPv6 routing
+   - **IPv4 Tunnels**: IPv4 overlay tunnels
+   - **KVM VMs vhost-user**: KVM VMs connected over virtio and vhost-user interfaces
+   - **LXC/DRC Container Memif**: Linux containers and Docker containers connected over Memif interfaces
+   - **IPsec IPv4 Routing**: IPsec encryption/decryption with IPv4 routing
+   - **Virtual Topology System**: VXLAN configurations with L2 bridge-domains
+
+#. **Level-2: testbeds and NIC models**
+
+   - section name format: {**testbed_type**}-{**nic_model**}
+   - **testbed_type**:
+     - 2n-skx: 2-node Xeon Skylake
+     - 3n-skx: 3-node Xeon Skylake
+     - 3n-hsw: 3-node Xeon Haswell
+     - 3n-tsh: 3-node Arm TaiShan
+     - 2n-dnv: 2-node Atom Denverton
+     - 3n-dnv: 3-node Atom Denverton
+   - **nic_model**:
+     - xxv710: xxv710 2p25GE Intel (Fortville)
+     - x710: x710 4p10GE Intel (Fortville)
+     - xl710: xl710 2p40GE Intel (Fortville)
+     - x520: x520 2p10GE Intel (Niantic)
+     - x553: x553 2p10GE Intel (Niantic)
+
+#. **Level-3: test group names**
+
+   - section name format: {**frame_size**}-{**worker_thread_core_cfg**}-{**vpp_functionality**}-{**vpp_lookup_type**}-{**baseline_scale**}-{**nic_driver**}
+   - **frame_size**:
+    - 64b: 64 byte frames, smallest frame size for untagged IPv4 packets
+    - 78b: 78 byte frames, smallest frame size for untagged IPv6 packets
+    - 114b: VXLAN encapsulated L2 frames
+    - imix: a sequence of (7x64B, 4x570, 1x1518) byte frames
+   - **worker_thread_core_cfg**:
+     - 1t1c: 1 worker thread on 1 core, hyper-threading not used
+     - 2t1c: 2 worker threads on 1 core, hyper-threading used
+   - **vpp_functionality** (optional):
+     - features: including input-acl, output-acl, macip-iacl, nat44
+     - srv6: srv6 encap/decap, proxy
+     - link-bonding: L2 link aggregation with 1 or 2 bonded links
+     - ipsec: IPsec encryption/decryption with different ciphers
+     - vts: Virtual Topology System specific tests
+   - **vpp_lookup_type**:
+     - l2switching, ip4routing, ip6routing, ip4tunnel, vhost, memif
+   - **baseline_scale**:
+     - base: baseline tests with less than 10 forwarding entries
+     - scale: scale tests with up to 2 million forwarding entries
+     - base-scale: both baseline and scale tests grouped together
+   - **nic_driver**:
+     - avf: VPP native avf driver for Intel Fortville NICs
+     - i40e: dpdk poll mode driver for Intel Fortville NICs
+     - ixgbe: dpdk poll mode driver for Intel Niantic NICs
 
 For each test case, Box-and-Whisker plots show the quartiles (Min, 1st
 quartile / 25th percentile, 2nd quartile / 50th percentile / mean, 3rd