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dpif-netdev-perf: Print SMC statistics.

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Printing of the SMC hits missed in the 'dpif-netdev/pmd-perf-show'
appctl command.

CC: Yipeng Wang <yipeng1.wang@intel.com>
Fixes: 60d8ccae13 ("dpif-netdev: Add SMC cache after EMC cache")
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Yipeng Wang <yipeng1.wang@intel.com>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>
This commit is contained in:
Ilya Maximets
2018-09-28 14:24:13 +03:00
committed by Ian Stokes
parent 771fcec248
commit 21e9b77b88
3 changed files with 6 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
lib/dpif-netdev-perf.c
View File

@@ -206,6 +206,7 @@ pmd_perf_format_overall_stats(struct ds *str, struct pmd_perf_stats *s,
" Rx packets: %12"PRIu64" (%.0f Kpps, %.0f cycles/pkt)\n"
" Datapath passes: %12"PRIu64" (%.2f passes/pkt)\n"
" - EMC hits: %12"PRIu64" (%4.1f %%)\n"
" - SMC hits: %12"PRIu64" (%4.1f %%)\n"
" - Megaflow hits: %12"PRIu64" (%4.1f %%, %.2f subtbl lookups/"
"hit)\n"
" - Upcalls: %12"PRIu64" (%4.1f %%, %.1f us/upcall)\n"
@@ -215,6 +216,8 @@ pmd_perf_format_overall_stats(struct ds *str, struct pmd_perf_stats *s,
passes, rx_packets ? 1.0 * passes / rx_packets : 0,
stats[PMD_STAT_EXACT_HIT],
100.0 * stats[PMD_STAT_EXACT_HIT] / passes,
stats[PMD_STAT_SMC_HIT],
100.0 * stats[PMD_STAT_SMC_HIT] / passes,
stats[PMD_STAT_MASKED_HIT],
100.0 * stats[PMD_STAT_MASKED_HIT] / passes,
stats[PMD_STAT_MASKED_HIT]

2
lib/dpif-netdev-perf.h
View File

@@ -56,7 +56,7 @@ extern "C" {
enum pmd_stat_type {
PMD_STAT_EXACT_HIT, /* Packets that had an exact match (emc). */
PMD_STAT_SMC_HIT, /* Packets that had a sig match hit (SMC). */
PMD_STAT_SMC_HIT, /* Packets that had a sig match hit (SMC). */
PMD_STAT_MASKED_HIT, /* Packets that matched in the flow table. */
PMD_STAT_MISS, /* Packets that did not match and upcall was ok. */
PMD_STAT_LOST, /* Packets that did not match and upcall failed. */

3
lib/dpif-netdev-unixctl.man
View File

@@ -11,7 +11,7 @@ Shows performance statistics for one or all pmd threads of the datapath
\fIdp\fR. The special thread "main" sums up the statistics of every non pmd
thread.
The sum of "emc hits", "megaflow hits" and "miss" is the number of
The sum of "emc hits", "smc hits", "megaflow hits" and "miss" is the number of
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.
@@ -135,6 +135,7 @@ pmd thread numa_id 0 core_id 1:
Rx packets: 2399607 (2381 Kpps, 848 cycles/pkt)
Datapath passes: 3599415 (1.50 passes/pkt)
- EMC hits: 336472 ( 9.3 %)
- SMC hits: 0 ( 0.0 %)
- Megaflow hits: 3262943 (90.7 %, 1.00 subtbl lookups/hit)
- Upcalls: 0 ( 0.0 %, 0.0 us/upcall)
- Lost upcalls: 0 ( 0.0 %)