2b191fe6e9
Motivation: At the moment the whole HTTP header must be parsed at once which can lead to multiple parsing of the same bytes. We can do better here and allow to parse it in multiple steps. Modifications: - Not parse headers multiple times - Simplify the code - Eliminate uncessary String[] creations - Use readSlice(...).retain() when possible. Result: Performance improvements as shown in the included benchmark below. Before change: [nmaurer@xxx]~% ./wrk-benchmark Running 2m test @ http://xxx:8080/plaintext 16 threads and 256 connections Thread Stats Avg Stdev Max +/- Stdev Latency 21.55ms 15.10ms 245.02ms 90.26% Req/Sec 196.33k 30.17k 297.29k 76.03% 373954750 requests in 2.00m, 50.15GB read Requests/sec: 3116466.08 Transfer/sec: 427.98MB After change: [nmaurer@xxx]~% ./wrk-benchmark Running 2m test @ http://xxx:8080/plaintext 16 threads and 256 connections Thread Stats Avg Stdev Max +/- Stdev Latency 20.91ms 36.79ms 1.26s 98.24% Req/Sec 206.67k 21.69k 243.62k 94.96% 393071191 requests in 2.00m, 52.71GB read Requests/sec: 3275971.50 Transfer/sec: 449.89MB |
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pom.xml |