dtrace -n 'i_dls_link_rx:entry{self->d=1;} xsvnic_rx_recv:entry{self->t=timestamp;} xsvnic_rx_recv:return/self->t && self->d/{@x[“time”] = quantize(timestamp-self->t);self->t=0; self->d = 0;} tick-10s{exit(0);}'
dtrace: description 'i_dls_link_rx:entry' matched 4 probes
 CPU     ID                    FUNCTION:NAME
  78   9033                        :tick-10s

  time
           value  ————- Distribution ————- count
           16384 |                                         0
           32768 |@@@@@@@@@@@@@@@@@@@@@@@@@                1223
           65536 |@@@@@@@@@@@@@@@                          720
          131072 |                                         8
          262144 |                                         0

select count (*) from gv$session;