Skip to content
This repository was archived by the owner on Jan 22, 2025. It is now read-only.

Fix - Uses fetch_add() to accumulate usage counters in LoadedPrograms #34319

Merged
Lichtso merged 1 commit into from
Dec 5, 2023
Merged

Fix - Uses fetch_add() to accumulate usage counters in LoadedPrograms #34319

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
41 changes: 19 additions & 22 deletions program-runtime/src/loaded_programs.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -609,13 +609,11 @@ impl<FG: ForkGraph> LoadedPrograms<FG> {
if matches!(existing.program, LoadedProgramType::Unloaded(_)) {
// The unloaded program is getting reloaded
// Copy over the usage counter to the new entry
let mut usage_count = existing.tx_usage_counter.load(Ordering::Relaxed);
saturating_add_assign!(
usage_count,
entry.tx_usage_counter.load(Ordering::Relaxed)
entry.tx_usage_counter.fetch_add(
existing.tx_usage_counter.load(Ordering::Relaxed),
Ordering::Relaxed,
);
entry.tx_usage_counter.store(usage_count, Ordering::Relaxed);
entry.ix_usage_counter.store(
entry.ix_usage_counter.fetch_add(
existing.ix_usage_counter.load(Ordering::Relaxed),
Ordering::Relaxed,
);
Expand Down Expand Up @@ -807,7 +805,7 @@ impl<FG: ForkGraph> LoadedPrograms<FG> {
}));
let mut extracting = extracted.lock().unwrap();
extracting.loaded.entries = keys
.filter_map(|(key, (match_criteria, count))| {
.filter_map(|(key, (match_criteria, usage_count))| {
let mut reloading = false;
if let Some(second_level) = self.entries.get(&key) {
for entry in second_level.iter().rev() {
Expand All @@ -830,7 +828,7 @@ impl<FG: ForkGraph> LoadedPrograms<FG> {
|| entry.deployment_slot == current_slot
|| is_ancestor
{
if current_slot >= entry.effective_slot {
let entry_to_return = if current_slot >= entry.effective_slot {
if !Self::is_entry_usable(entry, current_slot, &match_criteria)
|| !Self::matches_environment(entry, environments)
{
Expand All @@ -842,27 +840,26 @@ impl<FG: ForkGraph> LoadedPrograms<FG> {
break;
}

let mut usage_count =
entry.tx_usage_counter.load(Ordering::Relaxed);
saturating_add_assign!(usage_count, count);
entry.tx_usage_counter.store(usage_count, Ordering::Relaxed);
return Some((key, entry.clone()));
entry.clone()
} else if entry.is_implicit_delay_visibility_tombstone(current_slot) {
// Found a program entry on the current fork, but it's not effective
// yet. It indicates that the program has delayed visibility. Return
// the tombstone to reflect that.
return Some((
key,
Arc::new(LoadedProgram::new_tombstone(
entry.deployment_slot,
LoadedProgramType::DelayVisibility,
)),
));
}
Arc::new(LoadedProgram::new_tombstone(
entry.deployment_slot,
LoadedProgramType::DelayVisibility,
))
} else {
continue;
};
entry_to_return
.tx_usage_counter
.fetch_add(usage_count, Ordering::Relaxed);
return Some((key, entry_to_return));
}
}
}
extracting.missing.insert(key, (count, reloading));
extracting.missing.insert(key, (usage_count, reloading));
None
})
.collect::<HashMap<Pubkey, Arc<LoadedProgram>>>();
Expand Down