vmfunc 546ab091da perf(httpx): tune transport for connection reuse and add DrainClose ...

the shared transport was a bare DefaultTransport.Clone() with the stock
MaxIdleConnsPerHost=2, and call-sites only close response bodies without
draining them - so go could never return a conn to the idle pool and every
request re-dialed. high thread counts just thrashed the dialer.

- plumb Threads through Options into buildTransport; size MaxIdleConnsPerHost
  to the worker count (floored) so concurrent workers on one host pool instead
  of re-dialing, MaxIdleConns=512, MaxConnsPerHost=0, IdleConnTimeout=90s,
  ForceAttemptHTTP2. the socks5 branch gets its own keepalive net.Dialer so it
  doesn't lose os-level pooling under proxy.Direct.
- add DrainClose to read (capped) and close a body so the conn is reusable.
- benchmark proves it: 50 sequential requests reuse 1 conn tuned vs 50 bare.

2026-06-10 15:29:20 -07:00

..

httpx_test.go

perf(httpx): tune transport for connection reuse and add DrainClose

2026-06-10 15:29:20 -07:00

httpx.go

perf(httpx): tune transport for connection reuse and add DrainClose

2026-06-10 15:29:20 -07:00