>real 0m7.057s >user 0m0.640s >sys 0m6.260s > > >In other words: my Celeron 1200 MHz just did more than 100000 open/read/close's >per 1 sec. > > > As open() read() and close() are system calls, your execution time souldn't be 6.26+0.64=6.9s and 7.057-6.9=0.157s is the time given to other process (scheduler....)? Regards. Ghislain Garçon.