mir/ovs
2
0
Fork 0
mirror of https://github.com/openvswitch/ovs synced 2025-08-31 14:25:26 +00:00
Code Issues Releases Wiki Activity

dpif-netdev: Add per PMD sleep config.

Browse Source 
Extend 'pmd-sleep-max' so that individual PMD thread cores may have a
specified max sleep request value.

Existing behaviour is maintained.

Any PMD thread core without a value will use the global value if set
or default no sleep.

To set PMD thread cores 8 and 9 to never request a load based sleep
and all other PMD thread cores to be able to request a max sleep of
50 usecs:

 $ ovs-vsctl set open_vswitch . other_config:pmd-sleep-max=50,8:0,9:0

To set PMD thread cores 10 and 11 to request a max sleep of 100 usecs
and all other PMD thread cores to never request a sleep:

 $ ovs-vsctl set open_vswitch . other_config:pmd-sleep-max=10:100,11:100

'pmd-sleep-show' is updated to show the max sleep value for each PMD
thread.

Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
This commit is contained in:
Kevin Traynor
2023-12-14 11:15:15 +00:00
committed by Ilya Maximets
parent a095794bcc
commit 4cbbf56e6c
6 changed files with 644 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
lib/dpif-netdev-private-thread.h
View File

@@ -180,6 +180,9 @@ struct dp_netdev_pmd_thread {
int numa_id; /* numa node id of this pmd thread. */
bool isolated;
/* Max sleep request in microseconds. */
atomic_uint64_t max_sleep;
/* Queue id used by this pmd thread to send packets on all netdevs if
* XPS disabled for this netdev. All static_tx_qid's are unique and less
* than 'cmap_count(dp->poll_threads)'. */