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⚡ Bolt: [performance improvement] optimize path allocations in incremental invalidation #218

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⚡ Bolt: [performance improvement] optimize path allocations in incremental invalidation #218

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11 changes: 7 additions & 4 deletions crates/flow/src/incremental/invalidation.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -358,19 +358,22 @@ impl InvalidationDetector {

// Update lowlink
let w_lowlink = *state.lowlinks.get(dep).unwrap();
let v_lowlink = state.lowlinks.get_mut(&v.to_path_buf()).unwrap();
// Bolt: Use borrowed `&Path` instead of `&v.to_path_buf()` to avoid O(E) heap allocations during traversal
let v_lowlink = state.lowlinks.get_mut(v).unwrap();
*v_lowlink = (*v_lowlink).min(w_lowlink);
} else if state.on_stack.contains(dep) {
// Successor is on stack (part of current SCC)
let w_index = *state.indices.get(dep).unwrap();
let v_lowlink = state.lowlinks.get_mut(&v.to_path_buf()).unwrap();
// Bolt: Use borrowed `&Path` instead of `&v.to_path_buf()` to avoid O(E) heap allocations during traversal
let v_lowlink = state.lowlinks.get_mut(v).unwrap();
*v_lowlink = (*v_lowlink).min(w_index);
}
}

// If v is a root node, pop the stack to create an SCC
let v_index = *state.indices.get(&v.to_path_buf()).unwrap();
let v_lowlink = *state.lowlinks.get(&v.to_path_buf()).unwrap();
// Bolt: Use borrowed `&Path` instead of `&v.to_path_buf()` to avoid heap allocations
let v_index = *state.indices.get(v).unwrap();
let v_lowlink = *state.lowlinks.get(v).unwrap();

if v_lowlink == v_index {
let mut scc = Vec::new();
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8 changes: 4 additions & 4 deletions crates/rule-engine/src/check_var.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -104,9 +104,9 @@ fn get_vars_from_rules<'r>(rule: &'r Rule, utils: &'r RuleRegistration) -> Rapid
vars
}

fn check_var_in_constraints<'r>(
fn check_var_in_constraints(
mut vars: RapidSet<String>,
constraints: &'r RapidMap<thread_ast_engine::meta_var::MetaVariableID, Rule>,
constraints: &RapidMap<thread_ast_engine::meta_var::MetaVariableID, Rule>,
) -> RResult<RapidSet<String>> {
for rule in constraints.values() {
for var in rule.defined_vars() {
Expand All @@ -125,9 +125,9 @@ fn check_var_in_constraints<'r>(
Ok(vars)
}

fn check_var_in_transform<'r>(
fn check_var_in_transform(
mut vars: RapidSet<String>,
transform: &'r Option<Transform>,
transform: &Option<Transform>,
) -> RResult<RapidSet<String>> {
let Some(transform) = transform else {
return Ok(vars);
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