From 374954b9d648f503f6783325a1266457953a998d Mon Sep 17 00:00:00 2001 From: Tibor Frank Date: Wed, 3 May 2023 13:53:27 +0000 Subject: C-Docs: New structure Change-Id: I73d107f94b28b138f3350a9e1eedb0555583a9ca Signed-off-by: Tibor Frank --- .../methodology/generic_segmentation_offload.md | 116 --------------------- 1 file changed, 116 deletions(-) delete mode 100644 docs/content/methodology/generic_segmentation_offload.md (limited to 'docs/content/methodology/generic_segmentation_offload.md') diff --git a/docs/content/methodology/generic_segmentation_offload.md b/docs/content/methodology/generic_segmentation_offload.md deleted file mode 100644 index ddb19ba826..0000000000 --- a/docs/content/methodology/generic_segmentation_offload.md +++ /dev/null @@ -1,116 +0,0 @@ ---- -title: "Generic Segmentation Offload" -weight: 15 ---- - -# Generic Segmentation Offload - -## Overview - -Generic Segmentation Offload (GSO) reduces per-packet processing -overhead by enabling applications to pass a multi-packet buffer to -(v)NIC and process a smaller number of large packets (e.g. frame size of -64 KB), instead of processing higher numbers of small packets (e.g. -frame size of 1500 B), thus reducing per-packet overhead. - -GSO tests for VPP vhostuser and tapv2 interfaces. All tests cases use iPerf3 -client and server applications running TCP/IP as a traffic generator. For -performance comparison the same tests are run without GSO enabled. - -## GSO Test Topologies - -Two VPP GSO test topologies are implemented: - -1. iPerfC_GSOvirtio_LinuxVM --- GSOvhost_VPP_GSOvhost --- iPerfS_GSOvirtio_LinuxVM - - - Tests VPP GSO on vhostuser interfaces and interaction with Linux - virtio with GSO enabled. - -2. iPerfC_GSOtap_LinuxNspace --- GSOtapv2_VPP_GSOtapv2 --- iPerfS_GSOtap_LinuxNspace - - - Tests VPP GSO on tapv2 interfaces and interaction with Linux tap - with GSO enabled. - -Common configuration: - -- iPerfC (client) and iPerfS (server) run in TCP/IP mode without upper - bandwidth limit. -- Trial duration is set to 30 sec. -- iPerfC, iPerfS and VPP run in the single SUT node. - - -## VPP GSOtap Topology - -### VPP Configuration - -VPP GSOtap tests are executed without using hyperthreading. VPP worker runs on -a single core. Multi-core tests are not executed. Each interface belongs to -separate namespace. Following core pinning scheme is used: - -- 1t1c (rxq=1, rx_qsz=4096, tx_qsz=4096) - - system isolated: 0,28,56,84 - - vpp mt: 1 - - vpp wt: 2 - - vhost: 3-5 - - iperf-s: 6 - - iperf-c: 7 - -### iPerf3 Server Configuration - -iPerf3 version used 3.7 - - $ sudo -E -S ip netns exec tap1_namespace iperf3 \ - --server --daemon --pidfile /tmp/iperf3_server.pid --logfile /tmp/iperf3.log --port 5201 --affinity - -For the full iPerf3 reference please see: -[iPerf3 docs](https://github.com/esnet/iperf/blob/master/docs/invoking.rst). - - -### iPerf3 Client Configuration - -iPerf3 version used 3.7 - - $ sudo -E -S ip netns exec tap1_namespace iperf3 \ - --client 2.2.2.2 --bind 1.1.1.1 --port 5201 --parallel --time 30.0 --affinity --zerocopy - -For the full iPerf3 reference please see: -[iPerf3 docs](https://github.com/esnet/iperf/blob/master/docs/invoking.rst). - - -## VPP GSOvhost Topology - -### VPP Configuration - -VPP GSOvhost tests are executed without using hyperthreading. VPP worker runs -on a single core. Multi-core tests are not executed. Following core pinning -scheme is used: - -- 1t1c (rxq=1, rx_qsz=1024, tx_qsz=1024) - - system isolated: 0,28,56,84 - - vpp mt: 1 - - vpp wt: 2 - - vm-iperf-s: 3,4,5,6,7 - - vm-iperf-c: 8,9,10,11,12 - - iperf-s: 1 - - iperf-c: 1 - -### iPerf3 Server Configuration - -iPerf3 version used 3.7 - - $ sudo iperf3 \ - --server --daemon --pidfile /tmp/iperf3_server.pid --logfile /tmp/iperf3.log --port 5201 --affinity X - -For the full iPerf3 reference please see: -[iPerf3 docs](https://github.com/esnet/iperf/blob/master/docs/invoking.rst). - - -### iPerf3 Client Configuration - -iPerf3 version used 3.7 - - $ sudo iperf3 \ - --client 2.2.2.2 --bind 1.1.1.1 --port 5201 --parallel --time 30.0 --affinity X --zerocopy - -For the full iPerf3 reference please see: -[iPerf3 docs](https://github.com/esnet/iperf/blob/master/docs/invoking.rst). \ No newline at end of file -- cgit 1.2.3-korg