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Diffstat (limited to 'docs/configguide/installation.rst')
| -rwxr-xr-x | docs/configguide/installation.rst | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/docs/configguide/installation.rst b/docs/configguide/installation.rst index 048c2675..70572b07 100755 --- a/docs/configguide/installation.rst +++ b/docs/configguide/installation.rst @@ -186,9 +186,19 @@ parameter. In recent vswitchd versions, option VSWITCHD_DPDK_CONFIG will be used to configure vswitchd via ovs-vsctl calls. With the --socket-mem argument set to use 1 hugepage on the specified sockets as -seen above, the configuration will need 9 hugepages total to run all tests +seen above, the configuration will need 10 hugepages total to run all tests within vsperf if the pagesize is set correctly to 1GB. +VSPerf will verify hugepage amounts are free before executing test +environments. In case of hugepage amounts not being free, test initialization +will fail and testing will stop. + +**Please Note**: In some instances on a test failure dpdk resources may not +release hugepages used in dpdk configuration. It is recommended to configure a +few extra hugepages to prevent a false detection by VSPerf that not enough free +hugepages are available to execute the test environment. Normally dpdk would use +previously allocated hugepages upon initialization. + Depending on your OS selection configuration of hugepages may vary. Please refer to your OS documentation to set hugepages correctly. It is recommended to set the required amount of hugepages to be allocated by default on reboots. |