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actix-web/tools/wsload/src/wsclient.rs

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//! Simple websocket client.
#![allow(unused_variables)]
extern crate actix;
extern crate actix_web;
extern crate env_logger;
extern crate futures;
extern crate tokio_core;
extern crate url;
extern crate clap;
extern crate rand;
extern crate time;
extern crate num_cpus;
use std::time::Duration;
use std::sync::Arc;
use std::sync::atomic::{AtomicUsize, Ordering};
use futures::Future;
use rand::{thread_rng, Rng};
use actix::prelude::*;
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use actix_web::ws;
fn main() {
::std::env::set_var("RUST_LOG", "actix_web=info");
let _ = env_logger::init();
let matches = clap::App::new("ws tool")
.version("0.1")
.about("Applies load to websocket server")
.args_from_usage(
"<url> 'WebSocket url'
[bin]... -b, 'use binary frames'
-s, --size=[NUMBER] 'size of PUBLISH packet payload to send in KB'
-w, --warm-up=[SECONDS] 'seconds before counter values are considered for reporting'
-r, --sample-rate=[SECONDS] 'seconds between average reports'
-c, --concurrency=[NUMBER] 'number of websockt connections to open and use concurrently for sending'
-t, --threads=[NUMBER] 'number of threads to use'",
)
.get_matches();
let bin: bool = matches.value_of("bin").is_some();
let ws_url = matches.value_of("url").unwrap().to_owned();
let _ = url::Url::parse(&ws_url).map_err(|e| {
println!("Invalid url: {}", ws_url);
std::process::exit(0);
});
let threads = parse_u64_default(matches.value_of("threads"), num_cpus::get() as u64);
let concurrency = parse_u64_default(matches.value_of("concurrency"), 1);
let payload_size: usize = match matches.value_of("size") {
Some(s) => parse_u64_default(Some(s), 0) as usize * 1024,
None => 1024,
};
let warmup_seconds = parse_u64_default(matches.value_of("warm-up"), 2) as u64;
let sample_rate = parse_u64_default(matches.value_of("sample-rate"), 1) as usize;
let perf_counters = Arc::new(PerfCounters::new());
let payload = Arc::new(thread_rng()
.gen_ascii_chars()
.take(payload_size)
.collect::<String>());
let sys = actix::System::new("ws-client");
let mut report = true;
for t in 0..threads {
let pl = payload.clone();
let ws = ws_url.clone();
let perf = perf_counters.clone();
let addr = Arbiter::new(format!("test {}", t));
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addr.do_send(actix::msgs::Execute::new(move || -> Result<(), ()> {
let mut reps = report;
for _ in 0..concurrency {
let pl2 = pl.clone();
let perf2 = perf.clone();
Arbiter::handle().spawn(
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ws::Client::new(&ws).connect()
.map_err(|e| {
println!("Error: {}", e);
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Arbiter::system().do_send(actix::msgs::SystemExit(0));
()
})
.map(move |(reader, writer)| {
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let addr: Addr<Syn, _> = ChatClient::create(move |ctx| {
ChatClient::add_stream(reader, ctx);
ChatClient{conn: writer,
payload: pl2,
report: reps,
bin: bin,
ts: time::precise_time_ns(),
perf_counters: perf2,
sample_rate_secs: sample_rate,
}
});
})
);
reps = false;
}
Ok(())
}));
report = false;
}
let _ = sys.run();
}
fn parse_u64_default(input: Option<&str>, default: u64) -> u64 {
input.map(|v| v.parse().expect(&format!("not a valid number: {}", v)))
.unwrap_or(default)
}
struct ChatClient{
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conn: ws::ClientWriter,
payload: Arc<String>,
ts: u64,
bin: bool,
report: bool,
perf_counters: Arc<PerfCounters>,
sample_rate_secs: usize,
}
impl Actor for ChatClient {
type Context = Context<Self>;
fn started(&mut self, ctx: &mut Context<Self>) {
self.send_text();
if self.report {
self.sample_rate(ctx);
}
}
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fn stopping(&mut self, _: &mut Context<Self>) -> Running {
Arbiter::system().do_send(actix::msgs::SystemExit(0));
Running::Stop
}
}
impl ChatClient {
fn sample_rate(&self, ctx: &mut Context<Self>) {
ctx.run_later(Duration::new(self.sample_rate_secs as u64, 0), |act, ctx| {
let req_count = act.perf_counters.pull_request_count();
if req_count != 0 {
let latency = act.perf_counters.pull_latency_ns();
let latency_max = act.perf_counters.pull_latency_max_ns();
println!(
"rate: {}, throughput: {:?} kb, latency: {}, latency max: {}",
req_count / act.sample_rate_secs,
(((req_count * act.payload.len()) as f64) / 1024.0) /
act.sample_rate_secs as f64,
time::Duration::nanoseconds((latency / req_count as u64) as i64),
time::Duration::nanoseconds(latency_max as i64)
);
}
act.sample_rate(ctx);
});
}
fn send_text(&mut self) {
self.ts = time::precise_time_ns();
if self.bin {
self.conn.binary(&self.payload);
} else {
self.conn.text(&self.payload);
}
}
}
/// Handle server websocket messages
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impl StreamHandler<ws::Message, ws::ProtocolError> for ChatClient {
fn finished(&mut self, ctx: &mut Context<Self>) {
ctx.stop()
}
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fn handle(&mut self, msg: ws::Message, ctx: &mut Context<Self>) {
match msg {
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ws::Message::Text(txt) => {
if txt == self.payload.as_ref().as_str() {
self.perf_counters.register_request();
self.perf_counters.register_latency(time::precise_time_ns() - self.ts);
self.send_text();
} else {
println!("not eaqual");
}
},
_ => ()
}
}
}
pub struct PerfCounters {
req: AtomicUsize,
lat: AtomicUsize,
lat_max: AtomicUsize
}
impl PerfCounters {
pub fn new() -> PerfCounters {
PerfCounters {
req: AtomicUsize::new(0),
lat: AtomicUsize::new(0),
lat_max: AtomicUsize::new(0),
}
}
pub fn pull_request_count(&self) -> usize {
self.req.swap(0, Ordering::SeqCst)
}
pub fn pull_latency_ns(&self) -> u64 {
self.lat.swap(0, Ordering::SeqCst) as u64
}
pub fn pull_latency_max_ns(&self) -> u64 {
self.lat_max.swap(0, Ordering::SeqCst) as u64
}
pub fn register_request(&self) {
self.req.fetch_add(1, Ordering::SeqCst);
}
pub fn register_latency(&self, nanos: u64) {
let nanos = nanos as usize;
self.lat.fetch_add(nanos, Ordering::SeqCst);
loop {
let current = self.lat_max.load(Ordering::SeqCst);
if current >= nanos || self.lat_max.compare_and_swap(current, nanos, Ordering::SeqCst) == current {
break;
}
}
}
}