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| author | Yi-Hung Wei <yihung.wei@gmail.com> | 2020-01-03 17:13:26 -0800 |
|---|---|---|
| committer | Ilya Maximets <i.maximets@ovn.org> | 2020-01-18 02:11:39 +0100 |
| commit | e8568993e062afcb75a7a54b1a615f04d7d6df37 (patch) | |
| tree | d3b4ae4a9fb100baf9e97bd226d665a4781979d4 /Documentation/intro | |
| parent | 105cf8df82f75d38b3afe1d7e1a4fe421f767ca2 (diff) | |
| download | openvswitch-e8568993e062afcb75a7a54b1a615f04d7d6df37.tar.gz | |
netdev-afxdp: NUMA-aware memory allocation for XSK related memory.
Currently, the AF_XDP socket (XSK) related memory are allocated by main
thread in the main thread's NUMA domain. With the patch that detects
netdev-linux's NUMA node id, the PMD thread of AF_XDP port will be run on
the AF_XDP netdev's NUMA domain. If the net device's NUMA domain
is different from the main thread's NUMA domain, we will have two
cross-NUMA memory accesses (netdev <-> memory, memory <-> CPU).
This patch addresses the aforementioned issue by allocating
the memory in the net device's NUMA domain.
Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com>
Acked-by: William Tu <u9012063@gmail.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Diffstat (limited to 'Documentation/intro')
| -rw-r--r-- | Documentation/intro/install/afxdp.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/intro/install/afxdp.rst b/Documentation/intro/install/afxdp.rst index 7b0736c96..c4685fa7e 100644 --- a/Documentation/intro/install/afxdp.rst +++ b/Documentation/intro/install/afxdp.rst @@ -164,7 +164,7 @@ If a test case fails, check the log at:: Setup AF_XDP netdev ------------------- -Before running OVS with AF_XDP, make sure the libbpf and libelf are +Before running OVS with AF_XDP, make sure the libbpf, libelf, and libnuma are set-up right:: ldd vswitchd/ovs-vswitchd |