diff options
| author |   Christian Trautman <ctrautma@redhat.com> | 2016-07-14 14:46:43 -0400 |
|---|---|---|
| committer |   Maryam Tahhan <maryam.tahhan@intel.com> | 2016-08-09 08:03:20 +0000 |
| commit | 31f0a3e0a25e147e285d14e2e262ac48aa83ce65 (patch) | |
| tree | 4c497db2655e0f2fc60ced59cb415feaeca10fc9 /docs | |
| parent | 18253fb2133ae1bd294689d297b0182481c174c2 (diff) | |
hugepage_detect: Change hugepage detection to check for free hugepages
Change hugepage detection to check if hugepages are configured. Also
verifies enough free hugepages are available based on test
configuration. Will result in an exception if not enough hugepages
are found. This performs the check based on the guest memory configs
as well as the dpdk socket configs.
Adds some new methods to check for free hugepages based on all
hugepages or for socket free hugepages.
Adds new logging indicitaing needed and free hugepages as well as info
level event if hugepages are not configured at recommended 1GB size.
JIRA: VSPerf-255
Change-Id: I80d5605308861070c412568d8d40339f01b9718b
Signed-off-by: Christian Trautman <ctrautma@redhat.com>
Diffstat (limited to 'docs')
| -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. |