go  tool pprof  http://127.0.0.1:8200/debug/pprof/heap?debug=1
Fetching profile over HTTP from http://127.0.0.1:8200/debug/pprof/heap?debug=1
Saved profile in /data/tbase/pprof/pprof.alloc_objects.alloc_space.inuse_objects.inuse_space.005.pb.gz
Type: inuse_space
No samples were found with the default sample value type.
Try "sample_index" command to analyze different sample values.
Entering interactive mode (type "help" for commands, "o" for options)
(pprof) top
Showing nodes accounting for 0, 0% of 0 total
      flat  flat%   sum%        cum   cum%
(pprof) traces
Type: inuse_space
-----------+-------------------------------------------------------
     bytes:  2kB
         0   runtime/pprof.writeHeapInternal
             runtime/pprof.writeHeap
             runtime/pprof.(*Profile).WriteTo
             net/http/pprof.handler.ServeHTTP
             net/http/pprof.Index
             net/http.HandlerFunc.ServeHTTP
             net/http.(*ServeMux).ServeHTTP
             net/http.serverHandler.ServeHTTP
             net/http.(*conn).serve
             runtime.goexit
-----------+-------------------------------------------------------
     bytes:  136kB
         0   compress/flate.(*compressor).init
             compress/flate.NewWriter
             compress/gzip.(*Writer).Write
             runtime/pprof.(*profileBuilder).build
             runtime/pprof.writeHeapProto
             runtime/pprof.writeHeapInternal
             runtime/pprof.writeHeap
             runtime/pprof.(*Profile).WriteTo
             net/http/pprof.handler.ServeHTTP
             net/http/pprof.Index
             net/http.HandlerFunc.ServeHTTP
             net/http.(*ServeMux).ServeHTTP
             net/http.serverHandler.ServeHTTP
             net/http.(*conn).serve
             runtime.goexit
-----------+-------------------------------------------------------
     bytes:  8kB
         0   bytes.makeSlice
             bytes.(*Buffer).grow
             bytes.(*Buffer).ReadFrom
             io/ioutil.readAll
             io/ioutil.ReadFile
             runtime/pprof.(*profileBuilder).readMapping
             runtime/pprof.newProfileBuilder
             runtime/pprof.writeHeapProto
             runtime/pprof.writeHeapInternal
             runtime/pprof.writeHeap
             runtime/pprof.(*Profile).WriteTo
             net/http/pprof.handler.ServeHTTP
             net/http/pprof.Index
             net/http.HandlerFunc.ServeHTTP
             net/http.(*ServeMux).ServeHTTP
             net/http.serverHandler.ServeHTTP
             net/http.(*conn).serve
             runtime.goexit
-----------+-------------------------------------------------------
     bytes:  1kB
         0   sync.(*Pool).pinSlow
             sync.(*Pool).pin
             sync.(*Pool).Get
             net/http.newBufioWriterSize
             net/http.(*conn).readRequest
             net/http.(*conn).serve
             runtime.goexit
-----------+-------------------------------------------------------
     bytes:  2.25kB
         0   compress/flate.(*huffmanEncoder).generate
             compress/flate.(*huffmanBitWriter).writeBlockDynamic
             compress/flate.(*compressor).encSpeed
             compress/flate.(*compressor).close
             compress/flate.(*Writer).Close
             compress/gzip.(*Writer).Close
             runtime/pprof.(*profileBuilder).build
             runtime/pprof.writeHeapProto
             runtime/pprof.writeHeapInternal
             runtime/pprof.writeHeap
             runtime/pprof.(*Profile).WriteTo
             net/http/pprof.handler.ServeHTTP
             net/http/pprof.Index
             net/http.HandlerFunc.ServeHTTP
             net/http.(*ServeMux).ServeHTTP
             net/http.serverHandler.ServeHTTP
             net/http.(*conn).serve
             runtime.goexit
-----------+-------------------------------------------------------
     bytes:  648kB
         0   compress/flate.NewWriter
             compress/gzip.(*Writer).Write
             runtime/pprof.(*profileBuilder).build
             runtime/pprof.writeHeapProto
             runtime/pprof.writeHeapInternal
             runtime/pprof.writeHeap
             runtime/pprof.(*Profile).WriteTo
             net/http/pprof.handler.ServeHTTP
             net/http/pprof.Index
             net/http.HandlerFunc.ServeHTTP
             net/http.(*ServeMux).ServeHTTP
             net/http.serverHandler.ServeHTTP
             net/http.(*conn).serve
             runtime.goexit
-----------+-------------------------------------------------------
     bytes:  1GB
         0   main.Test1
             main.Test
             runtime.goexit
-----------+-------------------------------------------------------
(pprof) 

package main

import (
                _ "net/http/pprof"
                "time"
                "net/http"
                "strconv"
                "log"
)

func Test1() {
        a := make([]byte,1024 *1024 * 1024)
        for i := 1 ; i < 1024 * 1024 * 1024 ; i++ {
                a[i] = 'c'
        }
        for true {
                time.Sleep(10000);
        }
}

func Test() {

        Test1();

}

func main() {

        go func() {
                server_addr := ":" + strconv.Itoa(8200)
                log.Println(http.ListenAndServe(server_addr, nil))
        }()

        go Test()

        for true {
                time.Sleep(10000);
        }
}