[ovs-build] Passed: ovsrobot/ovs#667 (series_97712 - 9ee0f7f)
Travis CI
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Mon Mar 18 15:09:00 UTC 2019
Build Update for ovsrobot/ovs
-------------------------------------
Build: #667
Status: Passed
Duration: 1 hr, 10 mins, and 9 secs
Commit: 9ee0f7f (series_97712)
Author: Ilya Maximets
Message: dpif-netdev-perf: Fix double update of perf histograms.
Real values of 'packets per batch' and 'cycles per upcall' already
added to histograms in 'dpif-netdev' on receive. Adding the averages
makes statistics wrong. We should not add to histograms values that
never really appeared.
For exmaple, in current code following situation is possible:
pmd thread numa_id 0 core_id 5:
...
Rx packets: 83 (0 Kpps, 13873 cycles/pkt)
...
- Upcalls: 3 ( 3.6 %, 248.6 us/upcall)
Histograms
packets/it pkts/batch upcalls/it cycles/upcall
1 83 1 166 1 3 ...
15848 2
19952 2
...
50118 2
i.e. all the packets counted twice in 'pkts/batch' column and
all the upcalls counted twice in 'cycles/upcall' column.
CC: Jan Scheurich <jan.scheurich at ericsson.com>
Fixes: 79f368756ce8 ("dpif-netdev: Detailed performance stats for PMDs")
Signed-off-by: Ilya Maximets <i.maximets at samsung.com>
Signed-off-by: 0-day Robot <robot at bytheb.org>
View the changeset: https://github.com/ovsrobot/ovs/commit/9ee0f7f15f8d
View the full build log and details: https://travis-ci.org/ovsrobot/ovs/builds/507866103?utm_medium=notification&utm_source=email
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