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Startup Conf

The document outlines the configuration settings for a VPP (Vector Packet Processing) environment, including CPU core allocation, session management, API tracing, and memory settings. It provides options for logging, buffer management, and plugin management, as well as detailed parameters for optimizing performance. Many settings are commented out, indicating default values and potential customizations for users.

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0% found this document useful (0 votes)
13 views5 pages

Startup Conf

The document outlines the configuration settings for a VPP (Vector Packet Processing) environment, including CPU core allocation, session management, API tracing, and memory settings. It provides options for logging, buffer management, and plugin management, as well as detailed parameters for optimizing performance. Many settings are commented out, indicating default values and potential customizations for users.

Uploaded by

saravana3
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as TXT, PDF, TXT or read online on Scribd
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unix {

nodaemon
log /var/log/vpp/vpp.log
full-coredump
cli-listen /run/vpp/cli.sock
gid vpp
startup-config /etc/vpp/vpp.cfg
## run vpp in the interactive mode
# interactive

## do not use colors in terminal output


# nocolor

## do not display banner


# nobanner
}

cpu {
main-core 4
corelist-workers 5-6
}

session {
enable
# use-app-socket-api
# wrk-mq-length 4096
}

api-trace {
## This stanza controls binary API tracing. Unless there is a very strong reason,
## please leave this feature enabled.
on
## Additional parameters:
##
## To set the number of binary API trace records in the circular buffer, configure
nitems
##
## nitems <nnn>
##
## To save the api message table decode tables, configure a filename. Results in
/tmp/<filename>
## Very handy for understanding api message changes between versions, identifying
missing
## plugins, and so forth.
##
## save-api-table <filename>
}

api-segment {
gid vpp
}

socksvr {
default
}

# memory {
## Set the main heap size, default is 1G
# main-heap-size 2G

## Set the main heap page size. Default page size is OS default page
## which is in most cases 4K. if different page size is specified VPP
## will try to allocate main heap by using specified page size.
## special keyword 'default-hugepage' will use system default hugepage
## size
# main-heap-page-size 1G
## Set the default huge page size.
# default-hugepage-size 1G
#}

cpu {
## In the VPP there is one main thread and optionally the user can create
worker(s)
## The main thread and worker thread(s) can be pinned to CPU core(s) manually
or automatically

## Manual pinning of thread(s) to CPU core(s)

## Set logical CPU core where main thread runs, if main core is not set
## VPP will use core 1 if available
# main-core 1

## Set logical CPU core(s) where worker threads are running


# corelist-workers 2-3,18-19

## Automatic pinning of thread(s) to CPU core(s)

## Sets number of CPU core(s) to be skipped (1 ... N-1)


## Skipped CPU core(s) are not used for pinning main thread and working
thread(s).
## The main thread is automatically pinned to the first available CPU core
and worker(s)
## are pinned to next free CPU core(s) after core assigned to main thread
# skip-cores 4

## Specify a number of workers to be created


## Workers are pinned to N consecutive CPU cores while skipping "skip-cores"
CPU core(s)
## and main thread's CPU core
# workers 2

## Set scheduling policy and priority of main and worker threads

## Scheduling policy options are: other (SCHED_OTHER), batch (SCHED_BATCH)


## idle (SCHED_IDLE), fifo (SCHED_FIFO), rr (SCHED_RR)
# scheduler-policy fifo

## Scheduling priority is used only for "real-time policies (fifo and rr),
## and has to be in the range of priorities supported for a particular policy
# scheduler-priority 50
}

# buffers {
## Increase number of buffers allocated, needed only in scenarios with
## large number of interfaces and worker threads. Value is per numa node.
## Default is 16384 (8192 if running unpriviledged)
# buffers-per-numa 128000
## Size of buffer data area
## Default is 2048
# default data-size 2048

## Size of the memory pages allocated for buffer data


## Default will try 'default-hugepage' then 'default'
## you can also pass a size in K/M/G e.g. '8M'
# page-size default-hugepage
# }

# dsa {
## DSA work queue address
# dev wq0.0
# dev wq0.1
# }

# dpdk {
## Change default settings for all interfaces
# dev default {
## Number of receive queues, enables RSS
## Default is 1
# num-rx-queues 3

## Number of transmit queues, Default is equal


## to number of worker threads or 1 if no workers treads
# num-tx-queues 3

## Number of descriptors in transmit and receive rings


## increasing or reducing number can impact performance
## Default is 1024 for both rx and tx
# num-rx-desc 512
# num-tx-desc 512

## TCP Segment Offload


## Default is off
## To enable TSO, 'enable-tcp-udp-checksum' must be set
# tso on

## Devargs
## device specific init args
## Default is NULL
# devargs safe-mode-support=1,pipeline-mode-support=1

## rss-queues
## set valid rss steering queues
# rss-queues 0,2,5-7
# }

## Whitelist specific interface by specifying PCI address


# dev 0000:02:00.0

## Blacklist specific device type by specifying PCI vendor:device


## Whitelist entries take precedence
# blacklist 8086:10fb

## Set interface name


# dev 0000:02:00.1 {
# name eth0
# }

## Whitelist specific interface by specifying PCI address and in


## addition specify custom parameters for this interface
# dev 0000:02:00.1 {
# num-rx-queues 2
# }

## Change UIO driver used by VPP, Options are: igb_uio, vfio-pci,


## uio_pci_generic or auto (default)
# uio-driver vfio-pci

## Disable multi-segment buffers, improves performance but


## disables Jumbo MTU support
# no-multi-seg

## Change hugepages allocation per-socket, needed only if there is need for


## larger number of mbufs. Default is 256M on each detected CPU socket
# socket-mem 2048,2048

## Disables UDP / TCP TX checksum offload. Typically needed for use


## faster vector PMDs (together with no-multi-seg)
# no-tx-checksum-offload

## Enable UDP / TCP TX checksum offload


## This is the reversed option of 'no-tx-checksum-offload'
# enable-tcp-udp-checksum

## Enable/Disable AVX-512 vPMDs


# max-simd-bitwidth <256|512>
# }

## node variant defaults


#node {

## specify the preferred default variant


# default { variant avx512 }

## specify the preferred variant, for a given node


# ip4-rewrite { variant avx2 }

#}

# plugins {
## Adjusting the plugin path depending on where the VPP plugins are
# path /ws/vpp/build-root/install-vpp-native/vpp/lib/vpp_plugins
## Add additional directory to the plugin path
# add-path /tmp/vpp_plugins

## Disable all plugins by default and then selectively enable specific


plugins
# plugin default { disable }
# plugin dpdk_plugin.so { enable }
# plugin acl_plugin.so { enable }

## Enable all plugins by default and then selectively disable specific


plugins
# plugin dpdk_plugin.so { disable }
# plugin acl_plugin.so { disable }
# }

## Statistics Segment
# statseg {
# socket-name <filename>, name of the stats segment socket
# defaults to /run/vpp/stats.sock
# size <nnn>[KMG], size of the stats segment, defaults to 32mb
# page-size <nnn>, page size, ie. 2m, defaults to 4k
# per-node-counters on | off, defaults to none
# update-interval <f64-seconds>, sets the segment scrape / update interval
# }

## L2 FIB
# l2fib {
## l2fib hash table size.
# table-size 512M

## l2fib hash table number of buckets. Must be power of 2.


# num-buckets 524288
# }

## ipsec
# {
# ip4 {
## ipsec for ipv4 tunnel lookup hash number of buckets.
# num-buckets 524288
# }
# ip6 {
## ipsec for ipv6 tunnel lookup hash number of buckets.
# num-buckets 524288
# }
# }

# logging {
## set default logging level for logging buffer
## logging levels: emerg, alert,crit, error, warn, notice, info, debug, disabled
# default-log-level debug
## set default logging level for syslog or stderr output
# default-syslog-log-level info
## Set per-class configuration
# class dpdk/cryptodev { rate-limit 100 level debug syslog-level error }
# }

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