Initialize softdoom factor to correct proper initial value to avoid noise in graphs prior to receiving any queries.

4 files changed, 3 insertions, 5 deletions

diff --git a/searchcore/src/vespa/searchcore/proton/matching/matching_stats.cpp b/searchcore/src/vespa/searchcore/proton/matching/matching_stats.cpp
index 3bdc8efaa1c..7280653c4f9 100644
--- a/searchcore/src/vespa/searchcore/proton/matching/matching_stats.cpp
+++ b/searchcore/src/vespa/searchcore/proton/matching/matching_stats.cpp
@@ -28,7 +28,7 @@ MatchingStats::MatchingStats()
       _docsReRanked(0),
       _softDoomed(0),
       _doomOvertime(),
-      _softDoomFactor(0.5),
+      _softDoomFactor(INITIAL_SOFT_DOOM_FACTOR),
       _queryCollateralTime(),
       _queryLatency(),
       _matchTime(),
@@ -69,7 +69,6 @@ MatchingStats::add(const MatchingStats &rhs)
     _softDoomed += rhs.softDoomed();
     _doomOvertime.add(rhs._doomOvertime);
 
-
     _queryCollateralTime.add(rhs._queryCollateralTime);
     _queryLatency.add(rhs._queryLatency);
     _matchTime.add(rhs._matchTime);
diff --git a/searchcore/src/vespa/searchcore/proton/matching/matching_stats.h b/searchcore/src/vespa/searchcore/proton/matching/matching_stats.h
index 0e1a9b2f791..a28c423eb7b 100644
--- a/searchcore/src/vespa/searchcore/proton/matching/matching_stats.h
+++ b/searchcore/src/vespa/searchcore/proton/matching/matching_stats.h
@@ -133,6 +133,7 @@ private:
     std::vector<Partition> _partitions;
 
 public:
+    static constexpr double INITIAL_SOFT_DOOM_FACTOR = 0.5;
     MatchingStats(const MatchingStats &) = delete;
     MatchingStats & operator = (const MatchingStats &) = delete;
     MatchingStats(MatchingStats &&) = default;
diff --git a/searchcore/src/vespa/searchcore/proton/metrics/documentdb_tagged_metrics.cpp b/searchcore/src/vespa/searchcore/proton/metrics/documentdb_tagged_metrics.cpp
index c8c53d6f795..f4b8203f8e2 100644
--- a/searchcore/src/vespa/searchcore/proton/metrics/documentdb_tagged_metrics.cpp
+++ b/searchcore/src/vespa/searchcore/proton/metrics/documentdb_tagged_metrics.cpp
@@ -116,7 +116,6 @@ DocumentDBTaggedMetrics::MatchingMetrics::update(const MatchingStats &stats)
     docsRanked.inc(stats.docsRanked());
     docsReRanked.inc(stats.docsReRanked());
     softDoomedQueries.inc(stats.softDoomed());
-    softDoomFactor.set(stats.softDoomFactor());
     queries.inc(stats.queries());
     queryCollateralTime.addValueBatch(stats.queryCollateralTimeAvg(), stats.queryCollateralTimeCount(),
                                       stats.queryCollateralTimeMin(), stats.queryCollateralTimeMax());
@@ -131,7 +130,6 @@ DocumentDBTaggedMetrics::MatchingMetrics::MatchingMetrics(MetricSet *parent)
       docsReRanked("docs_reranked", {}, "Number of documents re-ranked (second phase)", this),
       queries("queries", {}, "Number of queries executed", this),
       softDoomedQueries("soft_doomed_queries", {}, "Number of queries hitting the soft timeout", this),
-      softDoomFactor("soft_doom_factor", {}, "Factor used to compute soft-timeout", this),
       queryCollateralTime("query_collateral_time", {}, "Average time (sec) spent setting up and tearing down queries", this),
       queryLatency("query_latency", {}, "Total average latency (sec) when matching and ranking a query", this)
 {
@@ -156,6 +154,7 @@ DocumentDBTaggedMetrics::MatchingMetrics::RankProfileMetrics::RankProfileMetrics
       queryCollateralTime("query_collateral_time", {}, "Average time (sec) spent setting up and tearing down queries", this),
       queryLatency("query_latency", {}, "Total average latency (sec) when matching and ranking a query", this)
 {
+    softDoomFactor.set(MatchingStats::INITIAL_SOFT_DOOM_FACTOR);
     for (size_t i = 0; i < numDocIdPartitions; ++i) {
         vespalib::string partition(vespalib::make_string("docid_part%02ld", i));
         partitions.push_back(std::make_unique<DocIdPartition>(partition, this));
diff --git a/searchcore/src/vespa/searchcore/proton/metrics/documentdb_tagged_metrics.h b/searchcore/src/vespa/searchcore/proton/metrics/documentdb_tagged_metrics.h
index 12aba210b17..01ba271a08f 100644
--- a/searchcore/src/vespa/searchcore/proton/metrics/documentdb_tagged_metrics.h
+++ b/searchcore/src/vespa/searchcore/proton/metrics/documentdb_tagged_metrics.h
@@ -115,7 +115,6 @@ struct DocumentDBTaggedMetrics : metrics::MetricSet
         metrics::LongCountMetric docsReRanked;
         metrics::LongCountMetric queries;
         metrics::LongCountMetric softDoomedQueries;
-        metrics::DoubleValueMetric softDoomFactor;
         metrics::DoubleAverageMetric queryCollateralTime;
         metrics::DoubleAverageMetric queryLatency;