precomputed chunk logging

Signed-off-by: Owen Diehl <ow.diehl@gmail.com>

pkg/indexgateway/gateway.go

@@ -473,13 +473,18 @@ func (g *Gateway) getShardsWithBlooms(
 
 	sp.LogKV("msg", "send shards response", "shards", len(resp.Shards))
 
+	var refCt int
+	for _, grp := range resp.ChunkGroups {
+		refCt += len(grp.Refs)
+	}
 	level.Debug(logger).Log(
 		"msg", "send shards response",
 		"total_chunks", statistics.Index.TotalChunks,
 		"post_filter_chunks", statistics.Index.PostFilterChunks,
 		"shards", len(resp.Shards),
 		"query", req.Query,
 		"target_bytes_per_shard", datasize.ByteSize(req.TargetBytesPerShard).HumanReadable(),
+		"precomputed_refs", refCt,
 	)
 
 	// 3) build shards

pkg/querier/queryrange/shard_resolver.go

@@ -304,7 +304,7 @@ func (r *dynamicShardResolver) ShardingRanges(expr syntax.Expr, targetBytesPerSh
 		"query", exprStr,
 		"total_chunks", casted.Response.Statistics.Index.TotalChunks,
 		"post_filter_chunks", casted.Response.Statistics.Index.PostFilterChunks,
-		"total_refs", refs,
+		"precomputed_refs", refs,
 	)
 
 	return casted.Response.Shards, casted.Response.ChunkGroups, err

pkg/storage/store.go

@@ -402,7 +402,7 @@ func (s *LokiStore) SetPipelineWrapper(wrapper lokilog.PipelineWrapper) {
 	s.pipelineWrapper = wrapper
 }
 
-// lazyChunks is an internal function used to resolve a set of lazy chunks from the store without actually loading them. It's used internally by `LazyQuery` and `GetSeries`
+// lazyChunks is an internal function used to resolve a set of lazy chunks from the store without actually loading them.
 func (s *LokiStore) lazyChunks(
 	ctx context.Context,
 	from, through model.Time,