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denoland-deno/ext/fetch
Marcos Casagrande ddbb5fdfb0
perf(ext/node): optimize http headers (#20163)
This PR optimizes Node's `IncomingMessageForServer.headers` by replacing
`Object.fromEntries()` with a loop and `headers.entries` with
`headersEntries` which returns the internal array directly instead of an
iterator

## Benchmarks

Using `wrk` with 5 headers

```
wrk -d 10s --latency -H "X-Deno: true" -H "Accept: application/json" -H "X-Foo: bar" -H "User-Agent: wrk" -H "Accept-Encoding: gzip, br" http://127.0.0.1:3000
```

**this PR**

```
Running 10s test @ http://127.0.0.1:3000
  2 threads and 10 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   167.53us  136.89us   2.75ms   97.33%
    Req/Sec    31.98k     1.38k   36.39k    70.30%
  Latency Distribution
     50%  134.00us
     75%  191.00us
     90%  234.00us
     99%  544.00us
  642548 requests in 10.10s, 45.96MB read
Requests/sec:  63620.36
Transfer/sec:      4.55MB
```

**main**

```
Running 10s test @ http://127.0.0.1:3000
  2 threads and 10 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   181.31us  132.54us   3.79ms   97.13%
    Req/Sec    29.21k     1.45k   32.93k    79.21%
  Latency Distribution
     50%  148.00us
     75%  198.00us
     90%  261.00us
     99%  545.00us
  586939 requests in 10.10s, 41.98MB read
Requests/sec:  58114.01
Transfer/sec:      4.16MB
```

```js
import express from "npm:express";

const app = express();
app.get("/", function (req, res) {
  req.headers;
  res.end();
});
app.listen(3000);
```
2023-08-15 16:59:35 +02:00
..
20_headers.js perf(ext/node): optimize http headers (#20163) 2023-08-15 16:59:35 +02:00
21_formdata.js chore: update deno_lint to 0.46.0 (#19372) 2023-06-05 15:57:01 -04:00
22_body.js fix(ext/fetch): clone second branch chunks in Body.clone() (#20057) 2023-08-15 09:21:02 +02:00
22_http_client.js refactor: Use ES modules for internal runtime code (#17648) 2023-02-07 20:22:46 +01:00
23_request.js perf(ext/request): optimize validate and normalize HTTP method (#20143) 2023-08-12 12:29:00 -06:00
23_response.js perf: optimize RegExp usage in JS (#19364) 2023-06-05 10:52:40 +02:00
26_fetch.js refactor(ext/fetch): refactor fetch to use new write_error method (#20029) 2023-08-03 14:27:25 -06:00
Cargo.toml chore: forward v1.36.1 to main (#20119) 2023-08-10 16:44:41 +03:00
fs_fetch_handler.rs refactor(ext/fetch): Remove FetchRequestBodyResource from FetchHandler interface (#20100) 2023-08-09 10:47:47 -06:00
internal.d.ts refactor: remove remaining references to "flash" server (#18580) 2023-04-04 12:37:56 +02:00
lib.deno_fetch.d.ts fix(dts): make globals available on globalThis (#19438) 2023-07-03 14:36:55 -04:00
lib.rs refactor(ext/fetch): Remove FetchRequestBodyResource from FetchHandler interface (#20100) 2023-08-09 10:47:47 -06:00
README.md Rename extensions/ directory to ext/ (#11643) 2021-08-11 12:27:05 +02:00

deno_fetch

This crate implements the Fetch API.

Spec: https://fetch.spec.whatwg.org/