aquatic_http: add criterion benchmark for announce response to bytes

Speedup of custom implementation compared to using bendy:

announce-response-to-bytes:

time:   [413.77 ns 415.34 ns 417.08 ns]
change: [-93.074% -93.021% -92.968%] (p = 0.00 < 0.01)
Performance has improved.

aquatic_http/Cargo.toml

@@ -18,6 +18,11 @@ name = "bench_request_from_path"
 path = "benches/bench_request_from_path.rs"
 harness = false
 
+[[bench]]
+name = "bench_announce_response_to_bytes"
+path = "benches/bench_announce_response_to_bytes.rs"
+harness = false
+
 [dependencies]
 anyhow = "1"
 aquatic_cli_helpers = { path = "../aquatic_cli_helpers" }

aquatic_http/benches/bench_announce_response_to_bytes.rs

@@ -0,0 +1,42 @@
+use std::net::Ipv4Addr;
+use std::time::Duration;
+
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+
+use aquatic_http::protocol::response::*;
+
+
+pub fn bench(c: &mut Criterion) {
+    let mut peers = Vec::new();
+
+    for i in 0..100 {
+        peers.push(ResponsePeer {
+            ip_address: Ipv4Addr::new(127, 0, 0, i),
+            port: i as u16
+        })
+    }
+
+    let announce_response = AnnounceResponse {
+        announce_interval: 120,
+        complete: 100,
+        incomplete: 500,
+        peers: ResponsePeerListV4(peers),
+        peers6: ResponsePeerListV6(Vec::new()),
+    };
+
+    let response = Response::Announce(announce_response);
+
+    c.bench_function("announce-response-to-bytes", |b| b.iter(||
+        Response::to_bytes(black_box(&response))
+    ));
+}
+
+criterion_group!{
+    name = benches;
+    config = Criterion::default()
+        .sample_size(1000)
+        .measurement_time(Duration::from_secs(180))
+        .significance_level(0.01);
+    targets = bench
+}
+criterion_main!(benches);

aquatic_http/target/criterion/announce-response-to-bytes/bendy/benchmark.json

@@ -0,0 +1 @@
+{"group_id":"announce-response-to-bytes","function_id":null,"value_str":null,"throughput":null,"full_id":"announce-response-to-bytes","directory_name":"announce-response-to-bytes","title":"announce-response-to-bytes"}

aquatic_http/target/criterion/announce-response-to-bytes/bendy/estimates.json

@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":6033.211414448978,"upper_bound":6077.812796004471},"point_estimate":6054.625623439862,"standard_error":11.387162302248655},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":5978.799232230455,"upper_bound":6005.189535363421},"point_estimate":5992.745967541798,"standard_error":6.185398365563177},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":157.08470879401094,"upper_bound":190.1634482791119},"point_estimate":175.51713287349847,"standard_error":8.3821979113297},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":6052.909623777413,"upper_bound":6106.324900686703},"point_estimate":6078.257114077077,"standard_error":13.648790489926581},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":285.8045348063516,"upper_bound":442.7497149360172},"point_estimate":363.44843558752416,"standard_error":40.16921333191484}}

aquatic_http/target/criterion/announce-response-to-bytes/bendy/tukey.json

@@ -0,0 +1 @@
+[5184.137608004838,5534.60305616611,6469.177584596171,6819.643032757444]

aquatic_http/target/criterion/announce-response-to-bytes/latest/benchmark.json

@@ -0,0 +1 @@
+{"group_id":"announce-response-to-bytes","function_id":null,"value_str":null,"throughput":null,"full_id":"announce-response-to-bytes","directory_name":"announce-response-to-bytes","title":"announce-response-to-bytes"}

aquatic_http/target/criterion/announce-response-to-bytes/latest/estimates.json

@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":419.88612634751735,"upper_bound":425.38508524104503},"point_estimate":422.5234574675309,"standard_error":1.4143626861263792},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":411.1840254440792,"upper_bound":413.2648196433366},"point_estimate":412.0626077394812,"standard_error":0.539288755707038},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":11.914005345139904,"upper_bound":13.958948147472947},"point_estimate":12.859769956741538,"standard_error":0.5147456144787788},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":413.760828155085,"upper_bound":417.06705955616684},"point_estimate":415.33960474085285,"standard_error":0.844822382993726},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":37.145365634474445,"upper_bound":51.978453081812695},"point_estimate":44.61780477344027,"standard_error":3.780806408623577}}

aquatic_http/target/criterion/announce-response-to-bytes/latest/tukey.json

@@ -0,0 +1 @@
+[351.7895769512653,377.8892152978113,447.4882508886006,473.5878892351466]

scripts/criterion/aquatic-http-announce-response-to-bytes.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+# Compare against latest. If you commit changes, replace "latest" directory
+# with "new" directory after running benchmark.
+
+export RUSTFLAGS="-C target-cpu=native"
+
+cargo bench --bench bench_announce_response_to_bytes -- --noplot --baseline latest