test/sysperf/ipitest

   1 #!/bin/csh
   2 #
   3 # ipitest [ Cmode ]
   4 #
   5 # NOTE: Run from current directory as ./ipitest, output in ipitest.out
   6 #
   7 # NOTE: Running powerd during this test is not recommended.
   8
   9 # Force test to run from cpu 0
  10 #
  11 if ( $?DIDUSCHED == 0 ) then
  12         setenv DIDUSCHED ok
  13         usched :1 ./ipitest $argv
  14         exit 0
  15 endif
  16
  17 # CX mode can be specified on the command line, if not
  18 # specified test all available CX modes.
  19 #
  20 if ( $#argv == 0 ) then
  21     set modes = "`sysctl -n machdep.mwait.CX.supported`"
  22 else
  23     set modes = "$argv"
  24 endif
  25
  26 set ncpus = "`sysctl -n hw.ncpu`"
  27 set cpus = "`seq 1 $ncpus`"
  28
  29 # Start test.  Use a sleep to give other cpus time to go
  30 # idle.  Try to avoid being on a hardclock boundary.
  31 #
  32 set file = "ipitest.out"
  33 echo "Testing $modes"
  34
  35 fgrep CPU /var/run/dmesg.boot | fgrep @ | head -1 > ${file}
  36 date >> ${file}
  37
  38 foreach mode ( $modes )
  39     echo "Testing mode $mode"
  40     sysctl machdep.mwait.CX.idle=$mode
  41     foreach i ( $cpus )
  42         foreach j ( x x x x x x x x x )
  43                 sleep 0.200010
  44                 sysctl debug.ipiq.latency_test=$i >& /dev/null
  45         end
  46     end
  47     sleep 0.2
  48     echo "Testing mode $mode" >> ${file}
  49     sysctl debug.ipiq >> ${file}
  50     echo ""
  51 end