[incremental] Collect stats about duplicated edge reads from queries
Part of #45873
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2 changed files with 17 additions and 0 deletions
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@ -413,6 +413,12 @@ impl DepGraph {
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self.data.as_ref().and_then(|t| t.dep_node_debug.borrow().get(&dep_node).cloned())
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}
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pub fn edge_deduplication_data(&self) -> (u64, u64) {
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let current_dep_graph = self.data.as_ref().unwrap().current.borrow();
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(current_dep_graph.total_read_count, current_dep_graph.total_duplicate_read_count)
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}
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pub fn serialize(&self) -> SerializedDepGraph {
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let fingerprints = self.fingerprints.borrow();
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let current_dep_graph = self.data.as_ref().unwrap().current.borrow();
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@ -737,6 +743,9 @@ pub(super) struct CurrentDepGraph {
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// each anon node. The session-key is just a random number generated when
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// the DepGraph is created.
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anon_id_seed: Fingerprint,
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total_read_count: u64,
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total_duplicate_read_count: u64,
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}
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impl CurrentDepGraph {
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@ -770,6 +779,8 @@ impl CurrentDepGraph {
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anon_id_seed: stable_hasher.finish(),
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task_stack: Vec::new(),
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forbidden_edge,
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total_read_count: 0,
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total_duplicate_read_count: 0,
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}
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}
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@ -900,6 +911,7 @@ impl CurrentDepGraph {
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ref mut read_set,
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node: ref target,
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}) => {
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self.total_read_count += 1;
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if read_set.insert(source) {
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reads.push(source);
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@ -913,6 +925,8 @@ impl CurrentDepGraph {
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}
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}
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}
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} else {
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self.total_duplicate_read_count += 1;
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}
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}
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Some(&mut OpenTask::Anon {
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@ -189,6 +189,7 @@ fn encode_dep_graph(tcx: TyCtxt,
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let total_node_count = serialized_graph.nodes.len();
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let total_edge_count = serialized_graph.edge_list_data.len();
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let (total_edge_reads, total_duplicate_edge_reads) = tcx.dep_graph.edge_deduplication_data();
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let mut counts: FxHashMap<_, Stat> = FxHashMap();
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@ -226,6 +227,8 @@ fn encode_dep_graph(tcx: TyCtxt,
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println!("[incremental]");
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println!("[incremental] Total Node Count: {}", total_node_count);
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println!("[incremental] Total Edge Count: {}", total_edge_count);
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println!("[incremental] Total Edge Reads: {}", total_edge_reads);
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println!("[incremental] Total Duplicate Edge Reads: {}", total_duplicate_edge_reads);
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println!("[incremental]");
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println!("[incremental] {:<36}| {:<17}| {:<12}| {:<17}|",
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"Node Kind",
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