perf(http): utilize writev when possible

By using `AsyncWrite::write_buf`, we can avoid some copies in some cases. This especially helps throughput for chunked encoding.
2018-01-25 12:45:55 -08:00
parent 11b49c2cc8
commit 68377ede70
10 changed files with 679 additions and 500 deletions
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,6 +25,7 @@ futures = "0.1.17"
 futures-cpupool = "0.1.6"
 http = { version = "0.1", optional = true }
 httparse = "1.0"
+iovec = "0.1"
 language-tags = "0.2"
 log = "0.4"
 mime = "0.3.2"