61 lines
1.8 KiB
Rust
61 lines
1.8 KiB
Rust
#![cfg(target_os = "linux")]
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use {
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solana_streamer::{
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packet::{Meta, Packet, PACKET_DATA_SIZE},
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recvmmsg::*,
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},
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std::{net::UdpSocket, time::Instant},
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};
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#[test]
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pub fn test_recv_mmsg_batch_size() {
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let reader = UdpSocket::bind("127.0.0.1:0").expect("bind");
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let addr = reader.local_addr().unwrap();
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let sender = UdpSocket::bind("127.0.0.1:0").expect("bind");
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const TEST_BATCH_SIZE: usize = 64;
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let sent = TEST_BATCH_SIZE;
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let mut elapsed_in_max_batch = 0;
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let mut num_max_batches = 0;
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(0..1000).for_each(|_| {
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for _ in 0..sent {
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let data = [0; PACKET_DATA_SIZE];
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sender.send_to(&data[..], addr).unwrap();
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}
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let mut packets = vec![Packet::default(); TEST_BATCH_SIZE];
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let now = Instant::now();
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let recv = recv_mmsg(&reader, &mut packets[..]).unwrap();
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elapsed_in_max_batch += now.elapsed().as_nanos();
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if recv == TEST_BATCH_SIZE {
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num_max_batches += 1;
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}
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});
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assert!(num_max_batches > 990);
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let mut elapsed_in_small_batch = 0;
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(0..1000).for_each(|_| {
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for _ in 0..sent {
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let data = [0; PACKET_DATA_SIZE];
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sender.send_to(&data[..], addr).unwrap();
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}
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let mut packets = vec![Packet::default(); 4];
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let mut recv = 0;
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let now = Instant::now();
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while let Ok(num) = recv_mmsg(&reader, &mut packets[..]) {
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recv += num;
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if recv >= TEST_BATCH_SIZE {
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break;
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}
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packets
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.iter_mut()
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.for_each(|pkt| *pkt.meta_mut() = Meta::default());
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}
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elapsed_in_small_batch += now.elapsed().as_nanos();
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assert_eq!(TEST_BATCH_SIZE, recv);
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});
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assert!(elapsed_in_max_batch <= elapsed_in_small_batch);
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}
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