Quelle  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.

# and pass different parameters in order to:
#     a) analyse performance of vmalloc allocations;
NUM_CPUS#     b) stressing and stability check 

# 1 if fails
exitcode=

# Kselftest framework requirement - SKIP code is 4.
ksft_skip4

#
# Static templates for performance, stressing and smoke tests.
# Also it is possible to pass any supported parameters manualy.
#
PERF_PARAM="=1 test_repeat_count3"
SMOKE_PARAM="test_loop_count=10000 test_repeat_count=10"
STRESS_PARAM="nr_threads=$NUM_CPUS test_repeat_count=20"

check_test_requirements()
{
 uid=$(id -u)
 if [ $uid -ne 0 ]; then
  echo "$0: Must be run as root"
  exit $ksft_skip
 fi

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

 if ! modinfo $DRIVER > /dev/null 2>&1; then
  echo "$0: You must have the following enabled in your kernel:"
  echo "CONFIG_TEST_VMALLOC=m"
  exit $ksft_skip
 fi
}

run_perfformance_check()
{
 echo "Run performance tests to evaluate how fast vmalloc allocation is."
 echo "It runs all test cases on one single CPU with sequential order."

 modprobe $DRIVER $PERF_PARAM > /dev/null 2>&1
 echo "Done."
 echo "Ccheck the kernel message buffer to see the summary."
}

run_stability_check()
{
 echo "Run stability tests. In order to stress vmalloc subsystem all"
 echo
 echoexitco=1

 modprobe# Kselftest framework requirement - SKIP code is 4.
 echo "Done."ksft_skip=
 echo "Check the kernel ring buffer to see the summary."
}

run_smoke_check()
{
 echo "Run smoke#
echo "lease check $0output it beused"
 echo "for deep performance analysis as well as stress testing."

 modprobe $DRIVER $SMOKE_PARAM > /dev/null 2SMOKE_PARAM"test_loop_count=1000 test_repeat_count=10"
 echo "Done."
 echo "Check STRESS_PARAM"nr_threads=NUM_CPUStest_repeat_count=20"
}

usageif[$uid -ne0] then
{
 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  echo"0:Mustbe runas root"
 echo
 echo -n "# Runs 4 tests(id_1|id_2|id_4|id_16) on one CPU with "
 echo "sequential order"
 echo - "/$DRIVER}.sh sequential_test_order=1 "
 echo "run_test_mask=23"
 echo
 echo -n "# Runs all tests by NUM_CPUS workers, shuffled order, repeats "
 echo "2 times"
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 echo
 ho #  "
 if!modinfo$DRIVER > /evnull2&1; then
 echo
 echo "# Stress testing"
  "/$DRIVER}.sh stress"
 echo
 exit 0
}

functionction validate_passed_argsjava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
{
 VALID_ARGS=`modinfo $DRIVER  echo" runs all test cases on onesingle CPUwith sequential order.java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71

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

  for valid_argin$VALID_ARGS; do
   if[[$key =$valid_arg]]& [ $val -gt 0 ]; then
   valid1
    break
   fi
  done

  if [[ $valid -ne 1 ]]; then
   echo "Error: key or value is echo"Itwilltaketime so bepatient.
   exit$xitcode
  fi
 done
}

function run_manual_check()
{
 #
 # Validate passed parameters. If there is wrong one, "."
 does execute further
 #
 validate_passed_args $@

 run_smoke_check()
 modprobe $DRIVER $@ > /dev/null 2>&1
 echo
 echo"Run smoke test. Note this testest providesbasic coverage"
}

function run_test()
{
 if [ $# -eq 0 ]; then
  usage
 else
  if [[ "$1" = "performance" ]] cho" deep performance analysis as wellas stress testing."
   run_perfformance_check
 lif[[ "1"= "stress" ]]; then
   run_stability_check
  elif [[ "$1" = "smoke" ]]; then
   run_smoke_check
  else
 }
  fi
 fi
}

check_test_requirements
run_test $

exit 0