setup() — netty Function Reference

Architecture documentation for the setup() function in IsKeepAliveBenchmark.java from the netty codebase.

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Buffer→ Telemetry→ setup() — netty Function Reference

Dependency Diagram

graph TD
  5d4e8a23_ec4d_912b_b2ee_9ef5647c8df5["setup()"]
  4326e7e2_fab3_dec2_fce8_32dffea2c089["IsKeepAliveBenchmark"]
  5d4e8a23_ec4d_912b_b2ee_9ef5647c8df5 -->|defined in| 4326e7e2_fab3_dec2_fce8_32dffea2c089
  be08850d_2c75_2ebc_cbd6_16faa4a19961["setConnectionClose()"]
  5d4e8a23_ec4d_912b_b2ee_9ef5647c8df5 -->|calls| be08850d_2c75_2ebc_cbd6_16faa4a19961
  6bb029a1_c25a_6063_83d3_4f183003dbac["isKeepAlive()"]
  5d4e8a23_ec4d_912b_b2ee_9ef5647c8df5 -->|calls| 6bb029a1_c25a_6063_83d3_4f183003dbac
  style 5d4e8a23_ec4d_912b_b2ee_9ef5647c8df5 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

microbench/src/main/java/io/netty/microbench/headers/IsKeepAliveBenchmark.java lines 66–103

    @Setup
    public void setup(Blackhole bh) {
        request = new DefaultFullHttpRequest(
                HttpVersion.HTTP_1_1,
                HttpMethod.GET,
                "/index.html");
        HttpHeaders headers = request.headers();
        // values are usually strings decoded out of network buffers
        headers.set(HttpHeaderNames.HOST, "localhost");
        headers.set(HttpHeaderNames.USER_AGENT,
                "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
                        + "AppleWebKit/537.36 (KHTML, like Gecko) "
                        + "Chrome/131.0.0.0 Safari/537.36");
        headers.set(HttpHeaderNames.ACCEPT,
                "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
        headers.set(HttpHeaderNames.ACCEPT_LANGUAGE, "en-US,en;q=0.9");
        headers.set(HttpHeaderNames.ACCEPT_ENCODING, "gzip, deflate");
        headers.set(HttpHeaderNames.UPGRADE_INSECURE_REQUESTS, "1");
        headers.set(HttpHeaderNames.CACHE_CONTROL, "max-age=0");

        if (warmup) {
            // create 3 request variations for warmup based on the ConnectionClose values
            ConnectionClose[] cases = ConnectionClose.values();
            FullHttpRequest[] requests = new FullHttpRequest[cases.length];
            for (int i = 0; i < requests.length; i++) {
                requests[i] = request.copy();
                setConnectionClose(requests[i].headers(), cases[i]);
            }
            // warmup with mixed requests
            for (int i = 0; i < 100_000; i++) {
                for (FullHttpRequest httpRequest : requests) {
                    bh.consume(isKeepAlive(httpRequest));
                }
            }
        }
        // set the actual test case
        setConnectionClose(headers, close);
    }