blob: 16185b4c051f62310f35cb057244e5cf6d6a631a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
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).
#. socket-mem <value>,<value> - memory per numa. (Not required anymore
due to VPP code changes, should be removed in CSIT-18.10.)
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.
#. num-rx-desc/num-tx-desc - number of rx/tx descriptors for specific
NICs, incl. xl710, x710, xxv710.
#. num-mbufs <value> - increases number of buffers allocated, needed
only in scenarios with large number of interfaces and worker threads.
Value is per CPU socket. Default is 16384.
#. 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.
|
