#!/bin/sh
# $Id: mtime,v 1.2 2014/11/18 23:46:00 friedman Exp $

# Default
TIME='\n*** Timing Information ***\n
Elapsed time     : %E
CPU Time         : %Ss kernel, %Us user
Percent CPU      : %P\n
Page faults      : %F major, %R minor
Page size        : %Z bytes\n
Context switches : %w voluntary, %c involuntary
Swaps            : %W\n
Shared text      : %Xk
Resident set size: %tk avg, %Mk max
Avg total memory : %Kk
Avg unshared mem : %pk stack, %Dk data\n
I/O block ops    : %I input, %O output
Socket msgs      : %r received, %s sent
Signals received : %k\n
Exit status: %x\n'

# As of kernel 3.16 these are the only supported fields.
TIME_linux='\n*** Timing Information ***\n
CPU  : %E real, %S sys, %U user (%P util)
RSS  : %Mk
FLT  : %F major, %R minor
CTX  : %w voluntary, %c involuntary
I/O  : %I / %O
Exit : %x\n'

case `uname -s` in
    Linux ) TIME=$TIME_linux ;;
esac

export TIME

exec time ${1+"$@"}

# eof