mirror of
https://github.com/valyala/fasthttp.git
synced 2026-06-15 16:07:51 +03:00
Sergio Andrés Virviescas Santana
91 lines
2.1 KiB
Markdown
91 lines
2.1 KiB
Markdown
# Prefork
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Server prefork implementation.
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Preforks master process between several child processes increases performance, because Go doesn't have to share and manage memory between cores.
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**WARNING: using prefork prevents the use of any global state!. Things like in-memory caches won't work.**
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- How it works:
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```go
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import (
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"github.com/valyala/fasthttp"
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"github.com/valyala/fasthttp/prefork"
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)
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server := &fasthttp.Server{
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// Your configuration
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}
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// Wraps the server with prefork
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preforkServer := prefork.New(server)
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if err := preforkServer.ListenAndServe(":8080"); err != nil {
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panic(err)
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}
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```
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## Benchmarks
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Environment:
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- Machine: MacBook Pro 13-inch, 2017
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- OS: MacOS 10.15.3
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- Go: go1.13.6 darwin/amd64
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Handler code:
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```go
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func requestHandler(ctx *fasthttp.RequestCtx) {
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// Simulates some hard work
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time.Sleep(100 * time.Millisecond)
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}
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```
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Test command:
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```bash
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$ wrk -H 'Host: localhost' -H 'Accept: text/plain,text/html;q=0.9,application/xhtml+xml;q=0.9,application/xml;q=0.8,*/*;q=0.7' -H 'Connection: keep-alive' --latency -d 15 -c 512 --timeout 8 -t 4 http://localhost:8080
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```
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Results:
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- prefork
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```bash
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Running 15s test @ http://localhost:8080
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4 threads and 512 connections
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Thread Stats Avg Stdev Max +/- Stdev
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Latency 4.75ms 4.27ms 126.24ms 97.45%
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Req/Sec 26.46k 4.16k 71.18k 88.72%
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Latency Distribution
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50% 4.55ms
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75% 4.82ms
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90% 5.46ms
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99% 15.49ms
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1581916 requests in 15.09s, 140.30MB read
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Socket errors: connect 0, read 318, write 0, timeout 0
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Requests/sec: 104861.58
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Transfer/sec: 9.30MB
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```
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- **non**-prefork
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```bash
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Running 15s test @ http://localhost:8080
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4 threads and 512 connections
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Thread Stats Avg Stdev Max +/- Stdev
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Latency 6.42ms 11.83ms 177.19ms 96.42%
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Req/Sec 24.96k 5.83k 56.83k 82.93%
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Latency Distribution
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50% 4.53ms
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75% 4.93ms
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90% 6.94ms
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99% 74.54ms
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1472441 requests in 15.09s, 130.59MB read
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Socket errors: connect 0, read 265, write 0, timeout 0
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Requests/sec: 97553.34
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Transfer/sec: 8.65MB
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```
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