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diff --git a/docs/gettingstarted/users/configutil/commandtwo.rst b/docs/gettingstarted/users/configutil/commandtwo.rst new file mode 100644 index 00000000000..0d06c1410e5 --- /dev/null +++ b/docs/gettingstarted/users/configutil/commandtwo.rst @@ -0,0 +1,124 @@ +.. _config-command-two: + +******* +Dry Run +******* + +With the config utility dry run option the important configuration files are created +so that the user can examine them and then if they look reasonable apply them with +option 3. The files for **Ubuntu** can be found in the root directory /usr/local/vpp/vpp-config/dryrun +and for **Centos** in /usr/vpp/vpp-config/dryrun. + +The important configuration files are **/etc/vpp/startup.conf**, **/etc/sysctl.d/80-vpp.conf**, +and **/etc/default/grub** + +Startup.conf +============ + +FD.io VPP startup parameters are configured in the file **/etc/vpp/startup.conf**. The +utility creates this file under the vpp-config root directory in vpp/startup.conf. +the values in this file come from the questions asked about the devices, cores, rx queues, +and tcp parameters. + +80-vpp.conf +=========== + +The huge page configuration comes by setting values in the file **/etc/sysctl.d/80-vpp.conf**. +The utility creates the file under the root directory in sysctl.d/80-vpp.conf. When asked the +question about huge pages the correct values are put in the dryrin file. + +grub +==== + +CPUs can be isolated for use by VPP or other processes such as VMs using the grub configuration +file. This file is **/etc/default/grub**. This file must be modified with care. It is possible to +make your system unusable if this file is modified incorrectly. The dry run file is located under +the vpp-config root directory and then default. + +********************* +Executing the Dry Run +********************* + +The following is an example of how to execute a dry run. Defaults should be picked first and then +the values increased accordingly. + +.. code-block:: console + + 1) Show basic system information + 2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection) + 3) Full configuration (WARNING: This will change the system configuration) + 4) List/Install/Uninstall VPP. + q) Quit + + Command: 2 + + These devices have kernel interfaces, but appear to be safe to use with VPP. + + PCI ID Kernel Interface(s) Description + ------------------------------------------------------------------------------------------ + 0000:8f:00.0 enp143s0 VIC Ethernet NIC + 0000:84:00.0 enp132s0f0,enp132s0f0d1 Ethernet Controller XL710 for 40GbE QSFP+ + 0000:84:00.1 enp132s0f1,enp132s0f1d1 Ethernet Controller XL710 for 40GbE QSFP+ + 0000:08:00.1 enp8s0f1 I350 Gigabit Network Connection + 0000:02:00.0 enp2s0f0 82599ES 10-Gigabit SFI/SFP+ Network Connection + 0000:02:00.1 enp2s0f1 82599ES 10-Gigabit SFI/SFP+ Network Connection + 0000:86:00.0 enp134s0f0 82599ES 10-Gigabit SFI/SFP+ Network Connection + 0000:86:00.1 enp134s0f1 82599ES 10-Gigabit SFI/SFP+ Network Connection + + Would you like to use any of these device(s) for VPP [y/N]? y + Would you like to use device 0000:8f:00.0 for VPP [y/N]? + Would you like to use device 0000:84:00.0 for VPP [y/N]? + Would you like to use device 0000:84:00.1 for VPP [y/N]? + Would you like to use device 0000:08:00.1 for VPP [y/N]? + Would you like to use device 0000:02:00.0 for VPP [y/N]? + Would you like to use device 0000:02:00.1 for VPP [y/N]? + Would you like to use device 0000:86:00.0 for VPP [y/N]? y + Would you like to use device 0000:86:00.1 for VPP [y/N]? y + + These device(s) will be used by VPP. + + PCI ID Description + ---------------------------------------------------------------- + 0000:86:00.0 82599ES 10-Gigabit SFI/SFP+ Network Connection + 0000:86:00.1 82599ES 10-Gigabit SFI/SFP+ Network Connection + 0000:90:00.0 VIC Ethernet NIC + + Would you like to remove any of these device(s) [y/N]? y + Would you like to remove 0000:86:00.0 [y/N]? + Would you like to remove 0000:86:00.1 [y/N]? + Would you like to remove 0000:90:00.0 [y/N]? y + + These device(s) will be used by VPP, please rerun this option if this is incorrect. + + PCI ID Description + ---------------------------------------------------------------- + 0000:86:00.0 82599ES 10-Gigabit SFI/SFP+ Network Connection + 0000:86:00.1 82599ES 10-Gigabit SFI/SFP+ Network Connection + + Your system has 32 core(s) and 2 Numa Nodes. + To begin, we suggest not reserving any cores for VPP or other processes. + Then to improve performance start reserving cores and adding queues as needed. + + How many core(s) shall we reserve for VPP [0-4][0]? 2 + How many core(s) do you want to reserve for processes other than VPP? [0-15][0]? + Should we reserve 1 core for the VPP Main thread? [y/N]? y + How many RX queues per port shall we use for VPP [1-4][1]? 2 + + How many active-open / tcp client sessions are expected [0-10000000][0]? + How many passive-open / tcp server sessions are expected [0-10000000][0]? + + There currently 896 2048 kB huge pages free. + Do you want to reconfigure the number of huge pages [y/N]? y + + There currently a total of 1024 huge pages. + How many huge pages do you want [1024 - 15644][1024]? 8192 + + What would you like to do? + + 1) Show basic system information + 2) Dry Run (Will save the configuration files in /usr/local/vpp/vpp-config/dryrun for inspection) + 3) Full configuration (WARNING: This will change the system configuration) + 4) List/Install/Uninstall VPP. + q) Quit + + Command: |