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use {
crossbeam_channel::{Receiver, RecvTimeoutError, Sender},
rayon::{prelude::*, ThreadPool},
solana_gossip::cluster_info::ClusterInfo,
solana_measure::measure::Measure,
solana_perf::packet::PacketBatch,
solana_rayon_threadlimit::get_thread_count,
solana_runtime::bank_forks::BankForks,
solana_sdk::timing::timestamp,
solana_streamer::streamer::{self, StreamerError},
std::{
cell::RefCell,
collections::HashMap,
net::IpAddr,
sync::{Arc, RwLock},
thread::{self, Builder, JoinHandle},
time::{Duration, Instant},
},
};
const IP_TO_STAKE_REFRESH_DURATION: Duration = Duration::from_secs(5);
thread_local!(static PAR_THREAD_POOL: RefCell<ThreadPool> = RefCell::new(rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("transaction_sender_stake_stage_{}", ix))
.build()
.unwrap()));
pub type FindPacketSenderStakeSender = Sender<Vec<PacketBatch>>;
pub type FindPacketSenderStakeReceiver = Receiver<Vec<PacketBatch>>;
#[derive(Debug, Default)]
struct FindPacketSenderStakeStats {
last_print: u64,
refresh_ip_to_stake_time: u64,
apply_sender_stakes_time: u64,
send_batches_time: u64,
receive_batches_time: u64,
total_batches: u64,
total_packets: u64,
}
impl FindPacketSenderStakeStats {
fn report(&mut self) {
let now = timestamp();
let elapsed_ms = now - self.last_print;
if elapsed_ms > 2000 {
datapoint_info!(
"find_packet_sender_stake-services_stats",
(
"refresh_ip_to_stake_time",
self.refresh_ip_to_stake_time as i64,
i64
),
(
"apply_sender_stakes_time",
self.apply_sender_stakes_time as i64,
i64
),
("send_batches_time", self.send_batches_time as i64, i64),
(
"receive_batches_time",
self.receive_batches_time as i64,
i64
),
("total_batches", self.total_batches as i64, i64),
("total_packets", self.total_packets as i64, i64),
);
*self = FindPacketSenderStakeStats::default();
self.last_print = now;
}
}
}
pub struct FindPacketSenderStakeStage {
thread_hdl: JoinHandle<()>,
}
impl FindPacketSenderStakeStage {
pub fn new(
packet_receiver: streamer::PacketBatchReceiver,
sender: FindPacketSenderStakeSender,
bank_forks: Arc<RwLock<BankForks>>,
cluster_info: Arc<ClusterInfo>,
) -> Self {
let mut stats = FindPacketSenderStakeStats::default();
let thread_hdl = Builder::new()
.name("find-packet-sender-stake".to_string())
.spawn(move || {
let mut last_stakes = Instant::now();
let mut ip_to_stake: HashMap<IpAddr, u64> = HashMap::new();
loop {
let mut refresh_ip_to_stake_time = Measure::start("refresh_ip_to_stake_time");
Self::try_refresh_ip_to_stake(
&mut last_stakes,
&mut ip_to_stake,
bank_forks.clone(),
cluster_info.clone(),
);
refresh_ip_to_stake_time.stop();
stats.refresh_ip_to_stake_time = stats
.refresh_ip_to_stake_time
.saturating_add(refresh_ip_to_stake_time.as_us());
match streamer::recv_packet_batches(&packet_receiver) {
Ok((mut batches, num_packets, recv_duration)) => {
let num_batches = batches.len();
let mut apply_sender_stakes_time =
Measure::start("apply_sender_stakes_time");
Self::apply_sender_stakes(&mut batches, &ip_to_stake);
apply_sender_stakes_time.stop();
let mut send_batches_time = Measure::start("send_batches_time");
if let Err(e) = sender.send(batches) {
info!("Sender error: {:?}", e);
}
send_batches_time.stop();
stats.apply_sender_stakes_time = stats
.apply_sender_stakes_time
.saturating_add(apply_sender_stakes_time.as_us());
stats.send_batches_time = stats
.send_batches_time
.saturating_add(send_batches_time.as_us());
stats.receive_batches_time = stats
.receive_batches_time
.saturating_add(recv_duration.as_nanos() as u64);
stats.total_batches =
stats.total_batches.saturating_add(num_batches as u64);
stats.total_packets =
stats.total_packets.saturating_add(num_packets as u64);
}
Err(e) => match e {
StreamerError::RecvTimeout(RecvTimeoutError::Disconnected) => break,
StreamerError::RecvTimeout(RecvTimeoutError::Timeout) => (),
_ => error!("error: {:?}", e),
},
}
stats.report();
}
})
.unwrap();
Self { thread_hdl }
}
fn try_refresh_ip_to_stake(
last_stakes: &mut Instant,
ip_to_stake: &mut HashMap<IpAddr, u64>,
bank_forks: Arc<RwLock<BankForks>>,
cluster_info: Arc<ClusterInfo>,
) {
if last_stakes.elapsed() > IP_TO_STAKE_REFRESH_DURATION {
let root_bank = bank_forks.read().unwrap().root_bank();
let staked_nodes = root_bank.staked_nodes();
*ip_to_stake = cluster_info
.tvu_peers()
.into_iter()
.filter_map(|node| {
let stake = staked_nodes.get(&node.id)?;
Some((node.tvu.ip(), *stake))
})
.collect();
*last_stakes = Instant::now();
}
}
fn apply_sender_stakes(batches: &mut [PacketBatch], ip_to_stake: &HashMap<IpAddr, u64>) {
PAR_THREAD_POOL.with(|thread_pool| {
thread_pool.borrow().install(|| {
batches
.into_par_iter()
.flat_map(|batch| batch.packets.par_iter_mut())
.for_each(|packet| {
packet.meta.sender_stake =
*ip_to_stake.get(&packet.meta.addr().ip()).unwrap_or(&0);
});
})
});
}
pub fn join(self) -> thread::Result<()> {
self.thread_hdl.join()
}
}
