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Forwarder: separate update_data_budget #30920

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Mar 28, 2023
Merged

Forwarder: separate update_data_budget #30920

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27 changes: 16 additions & 11 deletions core/src/banking_stage/forwarder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -162,17 +162,7 @@ impl Forwarder {
None => return (Ok(()), 0, None),
};

const INTERVAL_MS: u64 = 100;
// 12 MB outbound limit per second
const MAX_BYTES_PER_SECOND: usize = 12_000_000;
const MAX_BYTES_PER_INTERVAL: usize = MAX_BYTES_PER_SECOND * INTERVAL_MS as usize / 1000;
const MAX_BYTES_BUDGET: usize = MAX_BYTES_PER_INTERVAL * 5;
self.data_budget.update(INTERVAL_MS, |bytes| {
std::cmp::min(
bytes.saturating_add(MAX_BYTES_PER_INTERVAL),
MAX_BYTES_BUDGET,
)
});
self.update_data_budget();

let packet_vec: Vec<_> = forwardable_packets
.filter_map(|p| {
Expand Down Expand Up @@ -227,6 +217,21 @@ impl Forwarder {

(Ok(()), packet_vec_len, Some(leader_pubkey))
}

/// Re-fill the data budget if enough time has passed
fn update_data_budget(&self) {
const INTERVAL_MS: u64 = 100;
// 12 MB outbound limit per second
const MAX_BYTES_PER_SECOND: usize = 12_000_000;
const MAX_BYTES_PER_INTERVAL: usize = MAX_BYTES_PER_SECOND * INTERVAL_MS as usize / 1000;
const MAX_BYTES_BUDGET: usize = MAX_BYTES_PER_INTERVAL * 5;
self.data_budget.update(INTERVAL_MS, |bytes| {
std::cmp::min(
bytes.saturating_add(MAX_BYTES_PER_INTERVAL),
MAX_BYTES_BUDGET,
)
});
}
}

#[cfg(test)]
Expand Down