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| author |   Tibor Frank <tifrank@cisco.com> | 2023-05-03 13:53:27 +0000 |
|---|---|---|
| committer | Tibor Frank <tifrank@cisco.com> | 2023-05-09 05:56:22 +0000 |
| commit | 374954b9d648f503f6783325a1266457953a998d (patch) | |
| tree | 5514dee6af2a2e069189efe39d4e929dd25721f7 /docs/content/methodology/hoststack_testing/udpip_with_iperf3.md | |
| parent | 46eac7bb697e8261dba5b439a15f5a6125f31760 (diff) | |
C-Docs: New structure
Change-Id: I73d107f94b28b138f3350a9e1eedb0555583a9ca
Signed-off-by: Tibor Frank <tifrank@cisco.com>
Diffstat (limited to 'docs/content/methodology/hoststack_testing/udpip_with_iperf3.md')
| -rw-r--r-- | docs/content/methodology/hoststack_testing/udpip_with_iperf3.md | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/docs/content/methodology/hoststack_testing/udpip_with_iperf3.md b/docs/content/methodology/hoststack_testing/udpip_with_iperf3.md deleted file mode 100644 index 01ddf61269..0000000000 --- a/docs/content/methodology/hoststack_testing/udpip_with_iperf3.md +++ /dev/null @@ -1,44 +0,0 @@ ---- -title: "UDP/IP with iperf3" -weight: 3 ---- - -# UDP/IP with iperf3 - -[iperf3 goodput measurement tool](https://github.com/esnet/iperf) -is used for measuring the maximum attainable goodput of the VPP Host -Stack connection across two instances of VPP running on separate DUT -nodes. iperf3 is a popular open source tool for active measurements -of the maximum achievable goodput on IP networks. - -Because iperf3 utilizes the POSIX socket interface APIs, the current -test configuration utilizes the LD_PRELOAD mechanism in the linux -kernel to connect iperf3 to the VPP Host Stack using the VPP -Communications Library (VCL) LD_PRELOAD library (libvcl_ldpreload.so). - -In the future, a forked version of iperf3 which has been modified to -directly use the VCL application APIs may be added to determine the -difference in performance of 'VCL Native' applications versus utilizing -LD_PRELOAD which inherently has more overhead and other limitations. - -The test configuration is as follows: - - DUT1 Network DUT2 - [ iperf3-client -> VPP1 ]=======[ VPP2 -> iperf3-server] - -where, - -1. iperf3 server attaches to VPP2 and LISTENs on VPP2:UDP port 5201. -2. iperf3 client attaches to VPP1 and transmits one or more streams - of packets to VPP2:UDP port 5201. -3. iperf3 client transmits a uni-directional stream as fast as the - VPP Host Stack allows to the iperf3 server for the test duration. -4. At the end of the test the iperf3 client emits the goodput - measurements for all streams and the sum of all streams. - -Test cases include 1 and 10 Streams with a 20 second test duration -with the VPP Host Stack using the UDP transport layer.. - -Note: iperf3 is single threaded, so it is expected that the 10 stream -test shows little or no performance improvement due to -multi-thread/multi-core execution. |