openbsd55

$ /usr/bin/time perl -E 'for (0..1000000) { say 1 } ' 
       13.91 real         1.25 user         5.43 sys

$ /usr/bin/time -l perl -E 'for (0..1000000) { say 1 } ' 
       13.13 real         1.06 user         5.25 sys
      2324  maximum resident set size
         0  average shared memory size
         0  average unshared data size
         0  average unshared stack size
       717  minor page faults
         0  major page faults
         0  swaps
         0  block input operations
         2  block output operations
         0  messages sent
         0  messages received
         0  signals received
      3486  voluntary context switches
     32060  involuntary context switches

$ /usr/bin/time -p perl -E 'for (0..1000000) { say 1 } ' 
real        13.42
user         1.22
sys          5.35

$ /usr/bin/time -l -p perl -E 'for (0..1000000) { say 1 } ' 
real        14.49
user         1.37
sys          5.48
      2336  maximum resident set size
         0  average shared memory size
         0  average unshared data size
         0  average unshared stack size
       718  minor page faults
         0  major page faults
         0  swaps
         0  block input operations
         2  block output operations
         0  messages sent
         0  messages received
         0  signals received
      3460  voluntary context switches
     38013  involuntary context switches