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47 lines
1008 B
47 lines
1008 B
6 years ago
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package blademaster
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import (
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"flag"
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"net/http"
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"net/http/pprof"
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"os"
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"sync"
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6 years ago
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"github.com/bilibili/kratos/pkg/conf/dsn"
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6 years ago
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"github.com/pkg/errors"
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)
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var (
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_perfOnce sync.Once
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_perfDSN string
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)
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func init() {
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v := os.Getenv("HTTP_PERF")
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if v == "" {
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v = "tcp://0.0.0.0:2333"
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}
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flag.StringVar(&_perfDSN, "http.perf", v, "listen http perf dsn, or use HTTP_PERF env variable.")
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}
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func startPerf() {
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_perfOnce.Do(func() {
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mux := http.NewServeMux()
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mux.HandleFunc("/debug/pprof/", pprof.Index)
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mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
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mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
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mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
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go func() {
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d, err := dsn.Parse(_perfDSN)
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if err != nil {
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panic(errors.Errorf("blademaster: http perf dsn must be tcp://$host:port, %s:error(%v)", _perfDSN, err))
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}
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if err := http.ListenAndServe(d.Host, mux); err != nil {
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panic(errors.Errorf("blademaster: listen %s: error(%v)", d.Host, err))
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}
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}()
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})
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}
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