The following are examples of running rb_stat.d on Ruby programs.

rb_stat.d shows you the number of events per second that have happened since

the last line output. The default interval is 1 second, but you can specify

other intervals as arguments to the script.

This shows the rb_stat.d script reflecting the Code/Ruby/func_slow.rb script.

# ./rb_stat.d

TIME EXEC/s METHOD/s OBJNEW/s OBJFRE/s RAIS/s RESC/s GC/s

2007 Sep 17 03:59:07 0 0 0 0 0 0 0

2007 Sep 17 03:59:08 0 210426 7 0 0 0 0

2007 Sep 17 03:59:09 0 724067 0 0 0 0 0

2007 Sep 17 03:59:10 0 730877 0 0 0 0 0

2007 Sep 17 03:59:11 0 134645 0 0 0 0 0

2007 Sep 17 03:59:12 0 0 0 0 0 0 0

2007 Sep 17 03:59:13 0 0 0 0 0 0 0

^C

We can see that at 2007 Sep 17 03:59:08 there were 0 new Ruby programs

executed, 210426 methods called, 7 objects created, 0 objects freed, 0 raises,

0 rescues and 0 garbage collects.