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authorMaryam Tahhan <maryam.tahhan@intel.com>2015-08-24 13:51:20 +0100
committerMaryam Tahhan <maryam.tahhan@intel.com>2015-08-24 14:20:32 +0000
commit65fe266e99de3746372e633794c07ad95c1e383e (patch)
tree1d263973271fe33d11d262c833005a51f79df452 /docs
parent400c276d192d280cf74f09b2e8b2234057b56de3 (diff)
docs: Add Gotchas to quickstart guide.
JIRA: VSPERF-60 Change-Id: I63695f8fa8a86cf1e64fd959658e11f3d827a3c4 Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com> Reviewed-by: Al Morton <acmorton@att.com>
Diffstat (limited to 'docs')
-rw-r--r--docs/quickstart.rst24
1 files changed, 24 insertions, 0 deletions
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