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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/report/introduction/methodology_vpp_startup_settings.rst | |
| parent | 46eac7bb697e8261dba5b439a15f5a6125f31760 (diff) | |
C-Docs: New structure
Change-Id: I73d107f94b28b138f3350a9e1eedb0555583a9ca
Signed-off-by: Tibor Frank <tifrank@cisco.com>
Diffstat (limited to 'docs/report/introduction/methodology_vpp_startup_settings.rst')
| -rw-r--r-- | docs/report/introduction/methodology_vpp_startup_settings.rst | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/docs/report/introduction/methodology_vpp_startup_settings.rst b/docs/report/introduction/methodology_vpp_startup_settings.rst deleted file mode 100644 index c583ae7bed..0000000000 --- a/docs/report/introduction/methodology_vpp_startup_settings.rst +++ /dev/null @@ -1,45 +0,0 @@ -VPP Startup Settings --------------------- - -CSIT code manipulates a number of VPP settings in startup.conf for -optimized performance. List of common settings applied to all tests and -test dependent settings follows. - -See `VPP startup.conf`_ for a complete set and description of listed -settings. - -Common Settings -~~~~~~~~~~~~~~~ - -List of VPP startup.conf settings applied to all tests: - -#. heap-size <value> - set separately for ip4, ip6, stats, main - depending on scale tested. -#. no-tx-checksum-offload - disables UDP / TCP TX checksum offload in - DPDK. Typically needed for use faster vector PMDs (together with - no-multi-seg). -#. buffers-per-numa <value> - sets a number of memory buffers allocated - to VPP per CPU socket. VPP default is 16384. Needs to be increased for - scenarios with large number of interfaces and worker threads. To - accommodate for scale tests, CSIT is setting it to the maximum possible - value corresponding to the limit of DPDK memory mappings (currently - 256). For Xeon Skylake platforms configured with 2MB hugepages and VPP - data-size and buffer-size defaults (2048B and 2496B respectively), this - results in value of 215040 (256 * 840 = 215040, 840 * 2496B buffers fit - in 2MB hugepage). - -Per Test Settings -~~~~~~~~~~~~~~~~~ - -List of vpp startup.conf settings applied dynamically per test: - -#. corelist-workers <list_of_cores> - list of logical cores to run VPP - worker data plane threads. Depends on HyperThreading and core per - test configuration. -#. num-rx-queues <value> - depends on a number of VPP threads and NIC - interfaces. -#. no-multi-seg - disables multi-segment buffers in DPDK, improves - packet throughput, but disables Jumbo MTU support. Disabled for all - tests apart from the ones that require Jumbo 9000B frame support. -#. UIO driver - depends on topology file definition. -#. QAT VFs - depends on NRThreads, each thread = 1QAT VFs. |