Prune sigverify queue (#20331)
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5952b65932
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94668c95c2
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@ -18,6 +18,44 @@ use std::sync::mpsc::channel;
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use std::time::{Duration, Instant};
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use test::Bencher;
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#[bench]
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fn bench_packet_discard(bencher: &mut Bencher) {
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solana_logger::setup();
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let len = 30 * 1000;
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let chunk_size = 1024;
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let tx = test_tx();
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let mut batches = to_packets_chunked(&vec![tx; len], chunk_size);
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let mut total = 0;
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let ips: Vec<_> = (0..10_000)
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.into_iter()
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.map(|_| {
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let mut addr = [0u16; 8];
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thread_rng().fill(&mut addr);
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addr
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})
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.collect();
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for batch in batches.iter_mut() {
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total += batch.packets.len();
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for p in batch.packets.iter_mut() {
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let ip_index = thread_rng().gen_range(0, ips.len());
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p.meta.addr = ips[ip_index];
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}
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}
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info!("total packets: {}", total);
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bencher.iter(move || {
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SigVerifyStage::discard_excess_packets(&mut batches, 10_000);
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for batch in batches.iter_mut() {
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for p in batch.packets.iter_mut() {
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p.meta.discard = false;
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}
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}
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});
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}
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#[bench]
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fn bench_sigverify_stage(bencher: &mut Bencher) {
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solana_logger::setup();
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@ -9,21 +9,17 @@ use crate::sigverify;
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use crossbeam_channel::{SendError, Sender as CrossbeamSender};
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use solana_measure::measure::Measure;
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use solana_perf::packet::Packets;
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use solana_perf::perf_libs;
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use solana_sdk::timing;
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use solana_streamer::streamer::{self, PacketReceiver, StreamerError};
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use std::{
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sync::{
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mpsc::{Receiver, RecvTimeoutError},
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Arc, Mutex,
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},
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collections::HashMap,
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sync::mpsc::{Receiver, RecvTimeoutError},
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thread::{self, Builder, JoinHandle},
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time::Instant,
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};
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use thiserror::Error;
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const RECV_BATCH_MAX_CPU: usize = 1_000;
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const RECV_BATCH_MAX_GPU: usize = 5_000;
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const MAX_SIGVERIFY_BATCH: usize = 10_000;
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#[derive(Error, Debug)]
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pub enum SigVerifyServiceError {
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@ -37,7 +33,7 @@ pub enum SigVerifyServiceError {
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type Result<T> = std::result::Result<T, SigVerifyServiceError>;
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pub struct SigVerifyStage {
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thread_hdls: Vec<JoinHandle<()>>,
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thread_hdl: JoinHandle<()>,
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}
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pub trait SigVerifier {
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@ -137,44 +133,66 @@ impl SigVerifyStage {
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verified_sender: CrossbeamSender<Vec<Packets>>,
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verifier: T,
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) -> Self {
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let thread_hdls = Self::verifier_services(packet_receiver, verified_sender, verifier);
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Self { thread_hdls }
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let thread_hdl = Self::verifier_services(packet_receiver, verified_sender, verifier);
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Self { thread_hdl }
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}
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pub fn discard_excess_packets(batches: &mut Vec<Packets>, max_packets: usize) {
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let mut received_ips = HashMap::new();
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for (batch_index, batch) in batches.iter().enumerate() {
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for (packet_index, packets) in batch.packets.iter().enumerate() {
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let e = received_ips
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.entry(packets.meta.addr().ip())
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.or_insert_with(Vec::new);
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e.push((batch_index, packet_index));
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}
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}
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let mut batch_len = 0;
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while batch_len < max_packets {
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for (_ip, indexes) in received_ips.iter_mut() {
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if !indexes.is_empty() {
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indexes.remove(0);
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batch_len += 1;
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if batch_len >= MAX_SIGVERIFY_BATCH {
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break;
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}
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}
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}
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}
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for (_addr, indexes) in received_ips {
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for (batch_index, packet_index) in indexes {
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batches[batch_index].packets[packet_index].meta.discard = true;
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}
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}
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}
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fn verifier<T: SigVerifier>(
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recvr: &Arc<Mutex<PacketReceiver>>,
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recvr: &PacketReceiver,
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sendr: &CrossbeamSender<Vec<Packets>>,
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id: usize,
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verifier: &T,
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stats: &mut SigVerifierStats,
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) -> Result<()> {
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let (batch, num_packets, recv_duration) = streamer::recv_batch(
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&recvr.lock().expect("'recvr' lock in fn verifier"),
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if perf_libs::api().is_some() {
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RECV_BATCH_MAX_GPU
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} else {
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RECV_BATCH_MAX_CPU
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},
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)?;
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let (mut batches, num_packets, recv_duration) = streamer::recv_batch(recvr)?;
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let batch_len = batch.len();
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let batches_len = batches.len();
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debug!(
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"@{:?} verifier: verifying: {} id: {}",
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"@{:?} verifier: verifying: {}",
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timing::timestamp(),
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num_packets,
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id
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);
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if num_packets > MAX_SIGVERIFY_BATCH {
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Self::discard_excess_packets(&mut batches, MAX_SIGVERIFY_BATCH);
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}
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let mut verify_batch_time = Measure::start("sigverify_batch_time");
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sendr.send(verifier.verify_batch(batch))?;
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sendr.send(verifier.verify_batch(batches))?;
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verify_batch_time.stop();
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debug!(
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"@{:?} verifier: done. batches: {} total verify time: {:?} id: {} verified: {} v/s {}",
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"@{:?} verifier: done. batches: {} total verify time: {:?} verified: {} v/s {}",
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timing::timestamp(),
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batch_len,
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batches_len,
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verify_batch_time.as_ms(),
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id,
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num_packets,
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(num_packets as f32 / verify_batch_time.as_s())
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);
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@ -187,33 +205,28 @@ impl SigVerifyStage {
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.verify_batches_pp_us_hist
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.increment(verify_batch_time.as_us() / (num_packets as u64))
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.unwrap();
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stats.batches_hist.increment(batch_len as u64).unwrap();
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stats.batches_hist.increment(batches_len as u64).unwrap();
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stats.packets_hist.increment(num_packets as u64).unwrap();
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stats.total_batches += batch_len;
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stats.total_batches += batches_len;
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stats.total_packets += num_packets;
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Ok(())
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}
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fn verifier_service<T: SigVerifier + 'static + Send + Clone>(
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packet_receiver: Arc<Mutex<PacketReceiver>>,
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packet_receiver: PacketReceiver,
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verified_sender: CrossbeamSender<Vec<Packets>>,
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id: usize,
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verifier: &T,
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) -> JoinHandle<()> {
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let verifier = verifier.clone();
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let mut stats = SigVerifierStats::default();
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let mut last_print = Instant::now();
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Builder::new()
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.name(format!("solana-verifier-{}", id))
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.name("solana-verifier".to_string())
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.spawn(move || loop {
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if let Err(e) = Self::verifier(
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&packet_receiver,
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&verified_sender,
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id,
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&verifier,
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&mut stats,
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) {
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if let Err(e) =
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Self::verifier(&packet_receiver, &verified_sender, &verifier, &mut stats)
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{
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match e {
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SigVerifyServiceError::Streamer(StreamerError::RecvTimeout(
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RecvTimeoutError::Disconnected,
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@ -240,19 +253,43 @@ impl SigVerifyStage {
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packet_receiver: PacketReceiver,
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verified_sender: CrossbeamSender<Vec<Packets>>,
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verifier: T,
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) -> Vec<JoinHandle<()>> {
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let receiver = Arc::new(Mutex::new(packet_receiver));
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(0..4)
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.map(|id| {
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Self::verifier_service(receiver.clone(), verified_sender.clone(), id, &verifier)
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})
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.collect()
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) -> JoinHandle<()> {
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Self::verifier_service(packet_receiver, verified_sender, &verifier)
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}
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pub fn join(self) -> thread::Result<()> {
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for thread_hdl in self.thread_hdls {
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thread_hdl.join()?;
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}
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Ok(())
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self.thread_hdl.join()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use solana_perf::packet::Packet;
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fn count_non_discard(packets: &[Packets]) -> usize {
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packets
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.iter()
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.map(|pp| {
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pp.packets
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.iter()
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.map(|p| if p.meta.discard { 0 } else { 1 })
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.sum::<usize>()
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})
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.sum::<usize>()
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}
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#[test]
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fn test_packet_discard() {
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solana_logger::setup();
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let mut p = Packets::default();
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p.packets.resize(10, Packet::default());
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p.packets[3].meta.addr = [1u16; 8];
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let mut packets = vec![p];
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let max = 3;
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SigVerifyStage::discard_excess_packets(&mut packets, max);
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assert_eq!(count_non_discard(&packets), max);
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assert!(!packets[0].packets[0].meta.discard);
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assert!(!packets[0].packets[3].meta.discard);
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}
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}
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@ -126,10 +126,7 @@ fn recv_send(
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Ok(())
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}
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pub fn recv_batch(
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recvr: &PacketReceiver,
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max_batch: usize,
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) -> Result<(Vec<Packets>, usize, Duration)> {
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pub fn recv_batch(recvr: &PacketReceiver) -> Result<(Vec<Packets>, usize, Duration)> {
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let timer = Duration::new(1, 0);
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let msgs = recvr.recv_timeout(timer)?;
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let recv_start = Instant::now();
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@ -140,9 +137,6 @@ pub fn recv_batch(
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trace!("got more msgs");
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len += more.packets.len();
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batch.push(more);
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if len > max_batch {
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break;
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}
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}
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let recv_duration = recv_start.elapsed();
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trace!("batch len {}", batch.len());
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