167 lines
5.3 KiB
Rust
167 lines
5.3 KiB
Rust
//! The `sigverify_stage` implements the signature verification stage of the TPU. It
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//! receives a list of lists of packets and outputs the same list, but tags each
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//! top-level list with a list of booleans, telling the next stage whether the
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//! signature in that packet is valid. It assumes each packet contains one
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//! transaction. All processing is done on the CPU by default and on a GPU
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//! if the `cuda` feature is enabled with `--features=cuda`.
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use crate::packet::Packets;
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use crate::result::{Error, Result};
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use crate::service::Service;
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use crate::sigverify;
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use crate::streamer::{self, PacketReceiver};
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use solana_metrics::counter::Counter;
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use solana_metrics::{influxdb, submit};
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use solana_sdk::timing;
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use std::sync::mpsc::{Receiver, RecvTimeoutError, Sender};
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use std::sync::{Arc, Mutex};
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use std::thread::{self, Builder, JoinHandle};
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use std::time::Instant;
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#[cfg(feature = "cuda")]
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const RECV_BATCH_MAX: usize = 60_000;
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#[cfg(not(feature = "cuda"))]
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const RECV_BATCH_MAX: usize = 1000;
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pub type VerifiedPackets = Vec<(Packets, Vec<u8>)>;
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pub struct SigVerifyStage {
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thread_hdls: Vec<JoinHandle<()>>,
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}
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impl SigVerifyStage {
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#[allow(clippy::new_ret_no_self)]
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pub fn new(
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packet_receiver: Receiver<Packets>,
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sigverify_disabled: bool,
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verified_sender: Sender<VerifiedPackets>,
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) -> Self {
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sigverify::init();
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let thread_hdls =
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Self::verifier_services(packet_receiver, verified_sender, sigverify_disabled);
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Self { thread_hdls }
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}
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fn verify_batch(batch: Vec<Packets>, sigverify_disabled: bool) -> VerifiedPackets {
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let r = if sigverify_disabled {
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sigverify::ed25519_verify_disabled(&batch)
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} else {
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sigverify::ed25519_verify(&batch)
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};
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batch.into_iter().zip(r).collect()
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}
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fn verifier(
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recvr: &Arc<Mutex<PacketReceiver>>,
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sendr: &Sender<VerifiedPackets>,
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sigverify_disabled: bool,
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id: usize,
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) -> Result<()> {
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let (batch, len, recv_time) = streamer::recv_batch(
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&recvr.lock().expect("'recvr' lock in fn verifier"),
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RECV_BATCH_MAX,
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)?;
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inc_new_counter_info!("sigverify_stage-packets_received", len);
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let now = Instant::now();
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let batch_len = batch.len();
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debug!(
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"@{:?} verifier: verifying: {} id: {}",
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timing::timestamp(),
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batch.len(),
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id
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);
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let verified_batch = Self::verify_batch(batch, sigverify_disabled);
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inc_new_counter_info!("sigverify_stage-verified_packets_send", len);
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if sendr.send(verified_batch).is_err() {
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return Err(Error::SendError);
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}
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let total_time_ms = timing::duration_as_ms(&now.elapsed());
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let total_time_s = timing::duration_as_s(&now.elapsed());
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inc_new_counter_info!(
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"sigverify_stage-time_ms",
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(total_time_ms + recv_time) as usize
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);
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debug!(
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"@{:?} verifier: done. batches: {} total verify time: {:?} id: {} verified: {} v/s {}",
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timing::timestamp(),
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batch_len,
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total_time_ms,
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id,
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len,
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(len as f32 / total_time_s)
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);
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submit(
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influxdb::Point::new("sigverify_stage-total_verify_time")
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.add_field("batch_len", influxdb::Value::Integer(batch_len as i64))
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.add_field("len", influxdb::Value::Integer(len as i64))
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.add_field(
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"total_time_ms",
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influxdb::Value::Integer(total_time_ms as i64),
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)
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.to_owned(),
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);
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Ok(())
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}
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fn verifier_service(
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packet_receiver: Arc<Mutex<PacketReceiver>>,
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verified_sender: Sender<VerifiedPackets>,
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sigverify_disabled: bool,
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id: usize,
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) -> JoinHandle<()> {
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Builder::new()
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.name(format!("solana-verifier-{}", id))
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.spawn(move || loop {
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if let Err(e) =
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Self::verifier(&packet_receiver, &verified_sender, sigverify_disabled, id)
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{
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match e {
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Error::RecvTimeoutError(RecvTimeoutError::Disconnected) => break,
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Error::RecvTimeoutError(RecvTimeoutError::Timeout) => (),
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Error::SendError => {
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break;
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}
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_ => error!("{:?}", e),
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}
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}
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})
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.unwrap()
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}
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fn verifier_services(
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packet_receiver: PacketReceiver,
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verified_sender: Sender<VerifiedPackets>,
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sigverify_disabled: bool,
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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(
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receiver.clone(),
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verified_sender.clone(),
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sigverify_disabled,
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id,
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)
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})
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.collect()
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}
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}
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impl Service for SigVerifyStage {
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type JoinReturnType = ();
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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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}
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}
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