Just Info: v0.0.19 pprof

[bayashi]

Prof

--- a/main.go
+++ b/main.go
@@ -5,6 +5,8 @@ import (
        "io"
        "os"

+       "github.com/pkg/profile"
+
        "github.com/bayashi/xfg/internal/xfgstats"
        "github.com/bayashi/xfg/internal/xfgutil"
 )
@@ -46,6 +48,7 @@ func main() {
 }

 func (cli *runner) run() (int, string) {
+       defer profile.Start(profile.ProfilePath(".")).Stop()
        if o, err := cli.preXfg(); err != nil {
                return exitErr, fmt.Sprintf("on preXfg() : %s", err)
        } else {

Execution command

$ go build
$ ./xfg -s ~/.plenv/ plenv except --stats --no-pager

Build prof

$ go tool pprof xfg cpu.pprof

Result

(pprof) top30
Showing nodes accounting for 490ms, 100% of 490ms total
Showing top 30 nodes out of 130
      flat  flat%   sum%        cum   cum%
      60ms 12.24% 12.24%       60ms 12.24%  regexp.(*bitState).shouldVisit (inline)
      60ms 12.24% 24.49%       60ms 12.24%  runtime/internal/syscall.Syscall6
      40ms  8.16% 32.65%      100ms 20.41%  regexp.(*Regexp).tryBacktrack
      30ms  6.12% 38.78%       30ms  6.12%  indexbytebody
      30ms  6.12% 44.90%       30ms  6.12%  runtime.memmove
      30ms  6.12% 51.02%       30ms  6.12%  runtime.nextFreeFast (inline)
      20ms  4.08% 55.10%       60ms 12.24%  main.(*xfg).processContentLine
      20ms  4.08% 59.18%      230ms 46.94%  main.(*xfg).scanContent
      20ms  4.08% 63.27%       20ms  4.08%  runtime.(*gcBits).bitp (inline)
      20ms  4.08% 67.35%       90ms 18.37%  runtime.mallocgc
      10ms  2.04% 69.39%       40ms  8.16%  bytes.IndexByte (inline)
      10ms  2.04% 71.43%       10ms  2.04%  gcWriteBarrier
      10ms  2.04% 73.47%       10ms  2.04%  internal/bytealg.IndexByte
      10ms  2.04% 75.51%       10ms  2.04%  internal/poll.(*fdMutex).increfAndClose
      10ms  2.04% 77.55%      110ms 22.45%  regexp.(*Regexp).backtrack
      10ms  2.04% 79.59%       10ms  2.04%  runtime.(*moduledata).textAddr
      10ms  2.04% 81.63%       10ms  2.04%  runtime.(*stkframe).getStackMap
      10ms  2.04% 83.67%       10ms  2.04%  runtime.exitsyscallfast
      10ms  2.04% 85.71%       10ms  2.04%  runtime.growslice
      10ms  2.04% 87.76%       20ms  4.08%  runtime.pcvalue
      10ms  2.04% 89.80%       10ms  2.04%  runtime.spanHasSpecials (inline)
      10ms  2.04% 91.84%       50ms 10.20%  runtime.systemstack
      10ms  2.04% 93.88%       10ms  2.04%  runtime/internal/atomic.(*UnsafePointer).StoreNoWB
      10ms  2.04% 95.92%       30ms  6.12%  strings.Contains (inline)
      10ms  2.04% 97.96%       20ms  4.08%  strings.Index
      10ms  2.04%   100%       50ms 10.20%  syscall.Syscall
         0     0%   100%       50ms 10.20%  bufio.(*Scanner).Scan
         0     0%   100%      100ms 20.41%  bufio.(*Scanner).Text (inline)
         0     0%   100%       10ms  2.04%  bufio.(*Writer).Flush
         0     0%   100%       10ms  2.04%  bufio.(*Writer).Write

[bayashi]

Example No.2

$ ./xfg -s ~/.plenv/ -P "plen[vw]" -G "excep[rt]" --stats --no-pager