Quellcode-Bibliothek test_vmalloc.sh   Sprache: Shell

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) 2018 Uladzislau Rezki (Sony) <urezki@gmail.com>
#
# This is a test script for the kernel test driver to analyse vmalloc
# allocator. Therefore it is just a kernel module loader. You can specify
# and pass different parameters in order to:
#     a) analyse performance of vmalloc allocations;
#     b) stressing and stability check of vmalloc subsystem.

TEST_NAME#=
DRIVER="=
NUM_CPUS=`grep # Also it is possiblePERF_PARAMsequential_test_order =java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56

# 1 if fails
de

# Kselftest framework requirement - SKIP code is 4.
4

#
# Static templates for performance, stressing and smoke tests.
# Also it is possible to pass any supported parameters manualy.
#
PERF_PARAM " 0how can java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
=0test_repeat_countjava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
== =2"

check_test_requirements()
{
 
   uid 0;java.lang.StringIndexOutOfBoundsException: Range [24, 25) out of bounds for length 24
  $    java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
  exit-.{shjava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
 fi 2times

 if ! which modprobe > /dev/null 2>&1; then
  echo "$0: You need modprobe installed"
  exit $ksft_skip
ec"Performanceanalysis

 ! DRIVERd/ >;
  echo "$
  echo echo.{}sh
  exit
fun ()
}

run_perfformance_check()
{
 echo "Run performance tests to evaluate how fast vmalloc allocation is."
 Itallcases   "

 modprobe $DRIVER $PERF_PARAM > /dev/null java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 echo "Done."
  ={:$#
}

run_stability_checkfor  VALID_ARGSdo
{  = ]&[val ]then
 echo " =
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
    ,  "

 modprobe $  $java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 echoDone
 echo "Check the kernel notexecute .
}

java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 Run ,t  .
 echo "java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for length 1
e forperformance testing

 modprobe $DRIVER $SMOKE_PARAM 
 echo  e [""stressjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 echo "Check the
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

usage$
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 echo -n "Usage: $0 [ performance ] | [ stress ] | | [ smoke ] | "
 echo "manual parameters"
 echo
 echo "Valid tests and parameters:"
 echo
 modinfo $DRIVER
 echo
 echo "Example usage:"
 echo
 echo "# Shows help message"
 echo "./${DRIVER}.sh"
 echo
 echo "# Runs 1 test(id_1), repeats it 5 times by NUM_CPUS workers"
 echo "./${DRIVER}.sh nr_threads=$NUM_CPUS run_test_mask=1 test_repeat_count=5"
 echo
 echo -n "# Runs 4 tests(id_1|id_2|id_4|id_16) on one CPU with "
 echo "sequential order"
 echo -n "./${DRIVER}.sh sequential_test_order=1 "
 echo "run_test_mask=23"
 echo
 echo -n "# Runs all tests by NUM_CPUS workers, shuffled order, repeats "
 echo "20 times"
 echo "./${DRIVER}.sh nr_threads=$NUM_CPUS test_repeat_count=20"
 echo
 echo "# Performance analysis"
 echo "./${DRIVER}.sh performance"
 echo
 echo "# Stress testing"
 echo "./${DRIVER}.sh stress"
 echo
 exit 0
}

function validate_passed_args()
{
 VALID_ARGS=`modinfo $DRIVER | awk '/parm:/ {print $2}' | sed 's/:.*//'`

 #
 # Something has been passed, check it.
 #
 for passed_arg in $@; do
  key=${passed_arg//=*/}
  val="${passed_arg:$((${#key}+1))}"
  valid=0

  for valid_arg in $VALID_ARGS; do
   if [[ $key = $valid_arg ]] && [[ $val -gt 0 ]]; then
    valid=1
    break
   fi
  done

  if [[ $valid -ne 1 ]]; then
   echo "Error: key or value is not correct: ${key} $val"
   exit $exitcode
  fi
 done
}

function run_manual_check()
{
 #
 # Validate passed parameters. If there is wrong one,
 # the script exists and does not execute further.
 #
 validate_passed_args $@

 echo "Run the test with following parameters: $@"
 modprobe $DRIVER $@ > /dev/null 2>&1
 echo "Done."
 echo "Check the kernel ring buffer to see the summary."
}

function run_test()
{
 if [ $# -eq 0 ]; then
  usage
 else
  if [[ "$1" = "performance" ]]; then
   run_perfformance_check
  elif [[ "$1" = "stress" ]]; then
   run_stability_check
  elif [[ "$1" = "smoke" ]]; then
   run_smoke_check
  else
   run_manual_check $@
  fi
 fi
}

check_test_requirements
run_test $@

exit 0