varint-VarintEncode.pprof

(pprof) list varint.VarintEncode
     5.89s     26.37s (flat, cum) 39.97% of Total
         .          .     40://
     190ms      190ms     41:func VarintEncode(w io.Writer, v uint64) error {
     230ms      4.35s     42:   ba := [1]byte{}
     410ms      410ms     43:   nexp := 0
         .          .     44:   ntot := 0
     210ms      210ms     45:   for (v & 0xFFFFFFFFFFFFFF80) != 0 {
     280ms      280ms     46:       ba[0] = byte((v & 0x7F) | 0x80)
 ->  2.51s     15.19s     47:       n, _ := w.Write(ba[:])
     420ms      420ms     48:       ntot += n
     360ms      360ms     49:       nexp++
     260ms      260ms     50:       v >>= 7
         .          .     51:   }
      90ms       90ms     52:   ba[0] = byte(v & 0x7F)
     570ms      4.25s     53:   n, err := w.Write(ba[:])
      50ms       50ms     54:   ntot += n
      40ms       40ms     55:   nexp++
      80ms       80ms     56:   if err != nil {
         .          .     57:       return oerror.NewTrace(err)
         .          .     58:   }
         .          .     59:   if ntot != nexp {
         .          .     60:       return fmt.Errorf("Incorrect number of bytes written." +
         .          .     61:                         " Expected %d. Actual %d", nexp, ntot)
         .          .     62:   }
     190ms      190ms     63:   return nil
         .          .     64:}