iconcert.kr  pi5-64bit-sd
   0.000602 sec by fputs (100write #1)
   0.000161 sec by fputs (100write #2)

util/speed/speed2
after
  0.000783 sec for 200write (#1+#2)
   0.000800 sec by fputs (1000write)


 Database 50,000 Row Read
poll_result