iconcert.kr  pi5-64bit-sd
   0.0002739 sec by fputs() ( 100write)
   0.0004851 sec by fputs() ( 100write)
   1742010695 display sec-by time()
   1742010695.8108 display sec-by microtime(true)
util/speed/
after2
 0.0007691 sec for 200write
 Database 50,000 Row Read
poll_result