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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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12
lib/dpif-netdev.c
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@@ -648,6 +648,7 @@ pmd_info_show_stats(struct ds *reply,
" packet recirculations: %"PRIu64"\n"
" avg. datapath passes per packet: %.02f\n"
" phwol hits: %"PRIu64"\n"
" mfex opt hits: %"PRIu64"\n"
" emc hits: %"PRIu64"\n"
" smc hits: %"PRIu64"\n"
" megaflow hits: %"PRIu64"\n"
@@ -657,10 +658,9 @@ pmd_info_show_stats(struct ds *reply,
" avg. packets per output batch: %.02f\n",
total_packets, stats[PMD_STAT_RECIRC],
passes_per_pkt, stats[PMD_STAT_PHWOL_HIT],
stats[PMD_STAT_EXACT_HIT],
stats[PMD_STAT_SMC_HIT],
stats[PMD_STAT_MASKED_HIT], lookups_per_hit,
stats[PMD_STAT_MISS], stats[PMD_STAT_LOST],
stats[PMD_STAT_MFEX_OPT_HIT], stats[PMD_STAT_EXACT_HIT],
stats[PMD_STAT_SMC_HIT], stats[PMD_STAT_MASKED_HIT],
lookups_per_hit, stats[PMD_STAT_MISS], stats[PMD_STAT_LOST],
packets_per_batch);
if (total_cycles == 0) {
@@ -7037,7 +7037,7 @@ dfc_processing(struct dp_netdev_pmd_thread *pmd,
bool md_is_valid, odp_port_t port_no)
{
struct netdev_flow_key *key = &keys[0];
size_t n_missed = 0, n_emc_hit = 0, n_phwol_hit = 0;
size_t n_missed = 0, n_emc_hit = 0, n_phwol_hit = 0, n_mfex_opt_hit = 0;
struct dfc_cache *cache = &pmd->flow_cache;
struct dp_packet *packet;
const size_t cnt = dp_packet_batch_size(packets_);
@@ -7148,6 +7148,8 @@ dfc_processing(struct dp_netdev_pmd_thread *pmd,
*n_flows = map_cnt;
pmd_perf_update_counter(&pmd->perf_stats, PMD_STAT_PHWOL_HIT, n_phwol_hit);
pmd_perf_update_counter(&pmd->perf_stats, PMD_STAT_MFEX_OPT_HIT,
n_mfex_opt_hit);
pmd_perf_update_counter(&pmd->perf_stats, PMD_STAT_EXACT_HIT, n_emc_hit);
if (!smc_enable_db) {