88bd6e7a93
Motivation: While benchmarking the native transport with gathering writes I noticed that it is quite slow. This is due the fact that we need to do a lot of array copies to get the buffers into the iov array. Modification: Introduce a new class calles IovArray which allows to fill buffers directly in a iov array that can be passed over to JNI without any array copies. This gives a nice optimization in terms of speed when doing gathering writes. Result: Big performance improvement when doing gathering writes. See the included benchmark... Before: [nmaurer@xxx]~% wrk/wrk -H 'Host: localhost' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' -H 'Connection: keep-alive' -d 120 -c 256 -t 16 --pipeline 256 http://xxx:8080/plaintext Running 2m test @ http://xxx:8080/plaintext 16 threads and 256 connections Thread Stats Avg Stdev Max +/- Stdev Latency 23.44ms 16.37ms 259.57ms 91.77% Req/Sec 181.99k 31.69k 304.60k 78.12% 346544071 requests in 2.00m, 46.48GB read Requests/sec: 2887885.09 Transfer/sec: 396.59MB With this change: [nmaurer@xxx]~% wrk/wrk -H 'Host: localhost' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' -H 'Connection: keep-alive' -d 120 -c 256 -t 16 --pipeline 256 http://xxx:8080/plaintext Running 2m test @ http://xxx:8080/plaintext 16 threads and 256 connections Thread Stats Avg Stdev Max +/- Stdev Latency 21.93ms 16.33ms 305.73ms 92.34% Req/Sec 194.56k 33.75k 309.33k 77.04% 369617503 requests in 2.00m, 49.57GB read Requests/sec: 3080169.65 Transfer/sec: 423.00MB |
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| pom.xml | ||
| README.md | ||
Native transport for Linux
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