simple_memory_leak.go

$ go tool pprof pprof/heap.3.pprof
Local symbolization failed for main: open /tmp/go-build598947513/b001/exe/main: no such file or directory
Some binary filenames not available. Symbolization may be incomplete.
Try setting PPROF_BINARY_PATH to the search path for local binaries.
File: main
Type: inuse_space
Time: Jul 30, 2018 at 6:11pm (UTC)
Entering interactive mode (type "help" for commands, "o" for options)
(pprof) svg
Generating report in profile002.svg
(pprof) top20
Showing nodes accounting for 410.75MB, 99.03% of 414.77MB total
Dropped 10 nodes (cum <= 2.07MB)
      flat  flat%   sum%        cum   cum%
  408.97MB 98.60% 98.60%   408.97MB 98.60%  bytes.Repeat
    1.28MB  0.31% 98.91%   410.25MB 98.91%  main.(*RequestTracker).Track
    0.50MB  0.12% 99.03%   414.26MB 99.88%  net/http.(*conn).serve
         0     0% 99.03%   410.25MB 98.91%  main.main.func1
         0     0% 99.03%   410.25MB 98.91%  net/http.(*ServeMux).ServeHTTP
         0     0% 99.03%   410.25MB 98.91%  net/http.HandlerFunc.ServeHTTP
         0     0% 99.03%   410.25MB 98.91%  net/http.serverHandler.ServeHTTP

pprof -line would show line in SVG which might be really helpful.