iconcert.kr  pi5-64bit-sd
   0.0002579 sec by fputs() ( 100write)
   0.0004849 sec by fputs() ( 100write)
   1742014797 display sec-by time()
   1742014797.659 display sec-by microtime(true)
util/speed/
after2
 0.0007519 sec for 200write
 Database 50,000 Row Read
poll_result