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diff --git a/docs/quickstart.rst b/docs/quickstart.rst index fe04cb7d..5c5b7625 100644 --- a/docs/quickstart.rst +++ b/docs/quickstart.rst @@ -155,6 +155,30 @@ For all available options, check out the help dialog: ./vsperf --help + +GOTCHAs: +-------- + +OVS with DPDK and QEMU +~~~~~~~~~~~~~~~~~~~~~~~ +If you encounter the following error: "before (last 100 chars): +'-path=/dev/hugepages,share=on: unable to map backing store for +hugepages: Cannot allocate memory\r\n\r\n" with the PVP deployment +scenario, check the amount of hugepages on your system: + +.. code:: bash + + cat /proc/meminfo | grep HugePages + + +By default the vswitchd is launched with 1Gb of memory, to change +this, modify --socket-mem parameter in conf/02_vswitch.conf to allocate +an appropriate amount of memory: + +.. code:: bash + + VSWITCHD_DPDK_ARGS = ['-c', '0x4', '-n', '4', '--socket-mem 1024,0'] + -------------- .. |Alt text| image:: images/TCLServerProperties.png |