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dpif/stats: Add miniflow extract opt hits counter

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This commit adds a new counter to be displayed to the user when
requesting datapath packet statistics. It counts the number of
packets that are parsed and a miniflow built up from it by the
optimized miniflow extract parsers.

The ovs-appctl command "dpif-netdev/pmd-perf-show" now has an
extra entry indicating if the optimized MFEX was hit:

  - MFEX Opt hits:        6786432  (100.0 %)

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>
This commit is contained in:
Harry van Haaren
2021-07-15 21:36:14 +05:30
committed by Ian Stokes
parent 50be6715c0
commit dc39608d2a
6 changed files with 22 additions and 7 deletions
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4
lib/dpif-netdev-unixctl.man
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@@ -16,6 +16,9 @@ packet lookups performed by the datapath. Beware that a recirculated packet
experiences one additional lookup per recirculation, so there may be
more lookups than forwarded packets in the datapath.
The MFEX Opt hits displays the number of packets that are processed by the
optimized miniflow extract implementations.
Cycles are counted using the TSC or similar facilities (when available on
the platform). The duration of one cycle depends on the processing platform.
@@ -136,6 +139,7 @@ pmd thread numa_id 0 core_id 1:
Rx packets: 2399607 (2381 Kpps, 848 cycles/pkt)
Datapath passes: 3599415 (1.50 passes/pkt)
- PHWOL hits: 0 ( 0.0 %)
- MFEX Opt hits: 3570133 ( 99.2 %)
- EMC hits: 336472 ( 9.3 %)
- SMC hits: 0 ( 0.0 %)
- Megaflow hits: 3262943 ( 90.7 %, 1.00 subtbl lookups/hit)