David this patch set looks fine by me, guess a none-RFC patch would be
next?
Acked-by: Eelco Chaudron <[email protected]>
On 14 May 2019, at 18:33, David Marchand wrote:
We have been testing the rebalance code in different situations while
having traffic going through OVS.
Those tests have shown that part of the observed packets losses is due
to
some time wasted in signaling/waiting for the pmd threads to reload
their
polling configurations.
This RFC series is an attempt at getting pmd threads reloads quicker
and
more deterministic.
Example of number of cycles spent by a pmd between two polling
configurations (in cycles minimum/average/maximum of 1000 changes):
- d58b59c17c70: 126822/312103/756580
- patch1: 113658/296157/741688
- patch2: 49198/167206/466108
- patch3: 13032/120730/341163
- patch4: 12803/112964/323455
- patch5: 13633/ 20373/ 47410
Changelog since v1:
- added numbers per patch in cover letter
- added memory ordering for explicit synchronisations between threads
in patch 1 and patch 2
--
David Marchand
David Marchand (5):
dpif-netdev: Convert exit latch to flag.
dpif-netdev: Trigger parallel pmd reloads.
dpif-netdev: Do not sleep when swapping queues.
dpif-netdev: Only reload static tx qid when needed.
dpif-netdev: Catch reloads faster.
lib/dpif-netdev.c | 131
+++++++++++++++++++++++++++++++++++++++++-------------
1 file changed, 100 insertions(+), 31 deletions(-)
--
1.8.3.1
_______________________________________________
dev mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-dev
