使用pprof调试go程序

_ "net/http/pprof"

    go func() {
        http.ListenAndServe("localhost:6060", nil)
    }()
    

MEM:

# go tool pprof http://localhost:6060/debug/pprof/heap

$ go tool pprof -base pprof.demo2.alloc_objects.alloc_space.inuse_objects.inuse_space.001.pb.gz pprof.demo2.alloc_objects.alloc_space.inuse_objects.inuse_space.002.pb.gz

CPU:

# go tool pprof http://localhost:6060/debug/pprof/profile
# go tool pprof http://localhost:6060/debug/pprof/profile?seconds=30

调试cpu：

(pprof) top --cum
Showing nodes accounting for 20ms, 8.33% of 240ms total
Showing top 10 nodes out of 125
      flat  flat%   sum%        cum   cum%
         0     0%     0%      140ms 58.33%  uis-collector/lib.callCollector
         0     0%     0%      100ms 41.67%  uis-collector/collector.(*OffInstanceTrafficCollector).Collect
         0     0%     0%       80ms 33.33%  runtime.systemstack
         0     0%     0%       60ms 25.00%  uis-collector/collector.(*OffInstanceTrafficCollector).collectTrafficData
         0     0%     0%       50ms 20.83%  runtime.gcBgMarkWorker
         0     0%     0%       50ms 20.83%  runtime.gcBgMarkWorker.func2
         0     0%     0%       50ms 20.83%  runtime.gcDrain
         0     0%     0%       50ms 20.83%  uis-collector/lib.InitVMStat
         0     0%     0%       40ms 16.67%  encoding/json.Unmarshal
      20ms  8.33%  8.33%       40ms 16.67%  runtime.scanobject
(pprof)