866 MB db/data.mdb
232 MB test.bin
 95 MB json.zip
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hyperfine  -n print -n print2 -n zip-print -w 100 -m 100 ".\target\release\chgk_ledb.exe print 444" ".\target\release\chgk_ledb.exe print2 444" ".\target\release\chgk_ledb.exe zip-print 4 84"

Benchmark 1: print
  Time (mean ± σ):      20.0 ms ±   1.5 ms    [User: 3.4 ms, System: 11.7 ms]
  Range (min … max):    17.4 ms …  24.1 ms    100 runs

Benchmark 2: print2
  Time (mean ± σ):      19.4 ms ±   1.5 ms    [User: 5.5 ms, System: 9.8 ms]
  Range (min … max):    17.0 ms …  23.9 ms    100 runs

Benchmark 3: zip-print
  Time (mean ± σ):      40.2 ms ±   2.3 ms    [User: 15.1 ms, System: 18.9 ms]
  Range (min … max):    36.6 ms …  48.1 ms    100 runs

Summary
  'print2' ran
    1.03 ± 0.11 times faster than 'print'
    2.07 ± 0.20 times faster than 'zip-print'