Change default redirect limit to 0

Following redirects requires looking up the `Location` header on every
response, which shows up as overhead in the hot path. Most load tests
target a single endpoint and don't need redirection, so disable it by
default; pass `-r <N>` to opt back in.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: hatoo

README.md

@@ -194,7 +194,7 @@ Options:
       --disable-compression
           Disable compression.
   -r, --redirect <REDIRECT>
-          Limit for number of Redirect. Set 0 for no redirection. Redirection isn't supported for HTTP/2. [default: 10]
+          Limit for number of Redirect. Set 0 for no redirection. Redirection isn't supported for HTTP/2. [default: 0]
       --disable-keepalive
           Disable keep-alive, prevents re-use of TCP connections between different HTTP requests. This isn't supported for HTTP/2.
       --no-pre-lookup

src/lib.rs

@@ -233,7 +233,7 @@ Note: If qps is specified, burst will be ignored",
     disable_compression: bool,
     #[arg(
         help = "Limit for number of Redirect. Set 0 for no redirection. Redirection isn't supported for HTTP/2.",
-        default_value = "10",
+        default_value = "0",
         short = 'r',
         long = "redirect"
     )]

tests/tests.rs

@@ -352,6 +352,8 @@ async fn get_host_with_connect_to_redirect(host: &'static str) -> String {
     let args = [
         "-n".to_string(),
         "1".to_string(),
+        "-r".to_string(),
+        "10".to_string(),
         format!("http://{host}/source"),
         "--connect-to".to_string(),
         format!("{host}:80:localhost:{port}"),