mirror_zfs/scripts/zfs-tests.sh
John Wren Kennedy 9429910781 Assorted fixes for the performance tests
- Bail out early if we're running the perf tests and forget to
  specify disks.
- Allow perf tests to run with any number of disks.
- Remove weekly vs. nightly settings
- Move variables with common values to perf.shlib
- Use zinject to clear the ARC over export/import
- Fix dbuf cache size calculation

When the meaning of `dbuf_cache_max_bytes` changed, the performance
test that covers the dbuf cache started to fail. The test would try to
write files for the test using the max possible size of the cache,
inevitably filling the pool and failing. This change uses
`dbuf_cache_shift` to correctly calculate the dbuf cache size.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: John Kennedy <john.kennedy@delphix.com>
Closes #12408
2021-09-14 13:09:24 -07:00

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#!/bin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License, Version 1.0 only
# (the "License"). You may not use this file except in compliance
# with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
BASE_DIR=$(dirname "$0")
SCRIPT_COMMON=common.sh
if [ -f "${BASE_DIR}/${SCRIPT_COMMON}" ]; then
. "${BASE_DIR}/${SCRIPT_COMMON}"
else
echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
fi
PROG=zfs-tests.sh
VERBOSE="no"
QUIET=""
CLEANUP="yes"
CLEANUPALL="no"
LOOPBACK="yes"
STACK_TRACER="no"
FILESIZE="4G"
DEFAULT_RUNFILES="common.run,$(uname | tr '[:upper:]' '[:lower:]').run"
RUNFILES=${RUNFILES:-$DEFAULT_RUNFILES}
FILEDIR=${FILEDIR:-/var/tmp}
DISKS=${DISKS:-""}
SINGLETEST=""
SINGLETESTUSER="root"
TAGS=""
ITERATIONS=1
ZFS_DBGMSG="$STF_SUITE/callbacks/zfs_dbgmsg.ksh"
ZFS_DMESG="$STF_SUITE/callbacks/zfs_dmesg.ksh"
UNAME=$(uname -s)
# Override some defaults if on FreeBSD
if [ "$UNAME" = "FreeBSD" ] ; then
TESTFAIL_CALLBACKS=${TESTFAIL_CALLBACKS:-"$ZFS_DMESG"}
LOSETUP=/sbin/mdconfig
DMSETUP=/sbin/gpart
else
ZFS_MMP="$STF_SUITE/callbacks/zfs_mmp.ksh"
TESTFAIL_CALLBACKS=${TESTFAIL_CALLBACKS:-"$ZFS_DBGMSG:$ZFS_DMESG:$ZFS_MMP"}
LOSETUP=${LOSETUP:-/sbin/losetup}
DMSETUP=${DMSETUP:-/sbin/dmsetup}
fi
#
# Log an informational message when additional verbosity is enabled.
#
msg() {
if [ "$VERBOSE" = "yes" ]; then
echo "$@"
fi
}
#
# Log a failure message, cleanup, and return an error.
#
fail() {
echo "$PROG: $1" >&2
cleanup
exit 1
}
cleanup_freebsd_loopback() {
for TEST_LOOPBACK in ${LOOPBACKS}; do
if [ -c "/dev/${TEST_LOOPBACK}" ]; then
sudo "${LOSETUP}" -d -u "${TEST_LOOPBACK}" ||
echo "Failed to destroy: ${TEST_LOOPBACK}"
fi
done
}
cleanup_linux_loopback() {
for TEST_LOOPBACK in ${LOOPBACKS}; do
LOOP_DEV=$(basename "$TEST_LOOPBACK")
DM_DEV=$(sudo "${DMSETUP}" ls 2>/dev/null | \
grep "${LOOP_DEV}" | cut -f1)
if [ -n "$DM_DEV" ]; then
sudo "${DMSETUP}" remove "${DM_DEV}" ||
echo "Failed to remove: ${DM_DEV}"
fi
if [ -n "${TEST_LOOPBACK}" ]; then
sudo "${LOSETUP}" -d "${TEST_LOOPBACK}" ||
echo "Failed to remove: ${TEST_LOOPBACK}"
fi
done
}
#
# Attempt to remove loopback devices and files which where created earlier
# by this script to run the test framework. The '-k' option may be passed
# to the script to suppress cleanup for debugging purposes.
#
cleanup() {
if [ "$CLEANUP" = "no" ]; then
return 0
fi
if [ "$LOOPBACK" = "yes" ]; then
if [ "$UNAME" = "FreeBSD" ] ; then
cleanup_freebsd_loopback
else
cleanup_linux_loopback
fi
fi
for TEST_FILE in ${FILES}; do
rm -f "${TEST_FILE}" >/dev/null 2>&1
done
if [ "$STF_PATH_REMOVE" = "yes" ] && [ -d "$STF_PATH" ]; then
rm -Rf "$STF_PATH"
fi
}
trap cleanup EXIT
#
# Attempt to remove all testpools (testpool.XXX), unopened dm devices,
# loopback devices, and files. This is a useful way to cleanup a previous
# test run failure which has left the system in an unknown state. This can
# be dangerous and should only be used in a dedicated test environment.
#
cleanup_all() {
TEST_POOLS=$(sudo "$ZPOOL" list -H -o name | grep testpool)
if [ "$UNAME" = "FreeBSD" ] ; then
TEST_LOOPBACKS=$(sudo "${LOSETUP}" -l)
else
TEST_LOOPBACKS=$(sudo "${LOSETUP}" -a|grep file-vdev|cut -f1 -d:)
fi
TEST_FILES=$(ls /var/tmp/file-vdev* 2>/dev/null)
msg
msg "--- Cleanup ---"
msg "Removing pool(s): $(echo "${TEST_POOLS}" | tr '\n' ' ')"
for TEST_POOL in $TEST_POOLS; do
sudo "$ZPOOL" destroy "${TEST_POOL}"
done
if [ "$UNAME" != "FreeBSD" ] ; then
msg "Removing dm(s): $(sudo "${DMSETUP}" ls |
grep loop | tr '\n' ' ')"
sudo "${DMSETUP}" remove_all
fi
msg "Removing loopback(s): $(echo "${TEST_LOOPBACKS}" | tr '\n' ' ')"
for TEST_LOOPBACK in $TEST_LOOPBACKS; do
if [ "$UNAME" = "FreeBSD" ] ; then
sudo "${LOSETUP}" -d -u "${TEST_LOOPBACK}"
else
sudo "${LOSETUP}" -d "${TEST_LOOPBACK}"
fi
done
msg "Removing files(s): $(echo "${TEST_FILES}" | tr '\n' ' ')"
for TEST_FILE in $TEST_FILES; do
sudo rm -f "${TEST_FILE}"
done
}
#
# Takes a name as the only arguments and looks for the following variations
# on that name. If one is found it is returned.
#
# $RUNFILE_DIR/<name>
# $RUNFILE_DIR/<name>.run
# <name>
# <name>.run
#
find_runfile() {
NAME=$1
RESULT=""
if [ -f "$RUNFILE_DIR/$NAME" ]; then
RESULT="$RUNFILE_DIR/$NAME"
elif [ -f "$RUNFILE_DIR/$NAME.run" ]; then
RESULT="$RUNFILE_DIR/$NAME.run"
elif [ -f "$NAME" ]; then
RESULT="$NAME"
elif [ -f "$NAME.run" ]; then
RESULT="$NAME.run"
fi
echo "$RESULT"
}
#
# Symlink file if it appears under any of the given paths.
#
create_links() {
dir_list="$1"
file_list="$2"
[ -n "$STF_PATH" ] || fail "STF_PATH wasn't correctly set"
for i in $file_list; do
for j in $dir_list; do
[ ! -e "$STF_PATH/$i" ] || continue
if [ ! -d "$j/$i" ] && [ -e "$j/$i" ]; then
ln -sf "$j/$i" "$STF_PATH/$i" || \
fail "Couldn't link $i"
break
fi
done
[ ! -e "$STF_PATH/$i" ] && \
STF_MISSING_BIN="$STF_MISSING_BIN $i"
done
STF_MISSING_BIN=${STF_MISSING_BIN# }
}
#
# Constrain the path to limit the available binaries to a known set.
# When running in-tree a top level ./bin/ directory is created for
# convenience, otherwise a temporary directory is used.
#
constrain_path() {
. "$STF_SUITE/include/commands.cfg"
# On FreeBSD, base system zfs utils are in /sbin and OpenZFS utils
# install to /usr/local/sbin. To avoid testing the wrong utils we
# need /usr/local to come before / in the path search order.
SYSTEM_DIRS="/usr/local/bin /usr/local/sbin"
SYSTEM_DIRS="$SYSTEM_DIRS /usr/bin /usr/sbin /bin /sbin $LIBEXEC_DIR"
if [ "$INTREE" = "yes" ]; then
# Constrained path set to ./zfs/bin/
STF_PATH="$BIN_DIR"
STF_PATH_REMOVE="no"
STF_MISSING_BIN=""
if [ ! -d "$STF_PATH" ]; then
mkdir "$STF_PATH"
chmod 755 "$STF_PATH" || fail "Couldn't chmod $STF_PATH"
fi
# Special case links for standard zfs utilities
DIRS="$(find "$CMD_DIR" -type d \( ! -name .deps -a \
! -name .libs \) -print | tr '\n' ' ')"
create_links "$DIRS" "$ZFS_FILES"
# Special case links for zfs test suite utilities
DIRS="$(find "$STF_SUITE" -type d \( ! -name .deps -a \
! -name .libs \) -print | tr '\n' ' ')"
create_links "$DIRS" "$ZFSTEST_FILES"
else
# Constrained path set to /var/tmp/constrained_path.*
SYSTEMDIR=${SYSTEMDIR:-/var/tmp/constrained_path.XXXXXX}
STF_PATH=$(mktemp -d "$SYSTEMDIR")
STF_PATH_REMOVE="yes"
STF_MISSING_BIN=""
chmod 755 "$STF_PATH" || fail "Couldn't chmod $STF_PATH"
# Special case links for standard zfs utilities
create_links "$SYSTEM_DIRS" "$ZFS_FILES"
# Special case links for zfs test suite utilities
create_links "$STF_SUITE/bin" "$ZFSTEST_FILES"
fi
# Standard system utilities
SYSTEM_FILES="$SYSTEM_FILES_COMMON"
if [ "$UNAME" = "FreeBSD" ] ; then
SYSTEM_FILES="$SYSTEM_FILES $SYSTEM_FILES_FREEBSD"
else
SYSTEM_FILES="$SYSTEM_FILES $SYSTEM_FILES_LINUX"
fi
create_links "$SYSTEM_DIRS" "$SYSTEM_FILES"
# Exceptions
ln -fs "$STF_PATH/awk" "$STF_PATH/nawk"
if [ "$UNAME" = "Linux" ] ; then
ln -fs /sbin/fsck.ext4 "$STF_PATH/fsck"
ln -fs /sbin/mkfs.ext4 "$STF_PATH/newfs"
ln -fs "$STF_PATH/gzip" "$STF_PATH/compress"
ln -fs "$STF_PATH/gunzip" "$STF_PATH/uncompress"
ln -fs "$STF_PATH/exportfs" "$STF_PATH/share"
ln -fs "$STF_PATH/exportfs" "$STF_PATH/unshare"
elif [ "$UNAME" = "FreeBSD" ] ; then
ln -fs /usr/local/bin/ksh93 "$STF_PATH/ksh"
fi
}
#
# Output a useful usage message.
#
usage() {
cat << EOF
USAGE:
$0 [-hvqxkfS] [-s SIZE] [-r RUNFILES] [-t PATH] [-u USER]
DESCRIPTION:
ZFS Test Suite launch script
OPTIONS:
-h Show this message
-v Verbose zfs-tests.sh output
-q Quiet test-runner output
-x Remove all testpools, dm, lo, and files (unsafe)
-k Disable cleanup after test failure
-f Use files only, disables block device tests
-S Enable stack tracer (negative performance impact)
-c Only create and populate constrained path
-n NFSFILE Use the nfsfile to determine the NFS configuration
-I NUM Number of iterations
-d DIR Use DIR for files and loopback devices
-s SIZE Use vdevs of SIZE (default: 4G)
-r RUNFILES Run tests in RUNFILES (default: ${DEFAULT_RUNFILES})
-t PATH Run single test at PATH relative to test suite
-T TAGS Comma separated list of tags (default: 'functional')
-u USER Run single test as USER (default: root)
EXAMPLES:
# Run the default (linux) suite of tests and output the configuration used.
$0 -v
# Run a smaller suite of tests designed to run more quickly.
$0 -r linux-fast
# Run a single test
$0 -t tests/functional/cli_root/zfs_bookmark/zfs_bookmark_cliargs.ksh
# Cleanup a previous run of the test suite prior to testing, run the
# default (linux) suite of tests and perform no cleanup on exit.
$0 -x
EOF
}
while getopts 'hvqxkfScn:d:s:r:?t:T:u:I:' OPTION; do
case $OPTION in
h)
usage
exit 1
;;
v)
VERBOSE="yes"
;;
q)
QUIET="yes"
;;
x)
CLEANUPALL="yes"
;;
k)
CLEANUP="no"
;;
f)
LOOPBACK="no"
;;
S)
STACK_TRACER="yes"
;;
c)
constrain_path
exit
;;
n)
nfsfile=$OPTARG
[ -f "$nfsfile" ] || fail "Cannot read file: $nfsfile"
export NFS=1
. "$nfsfile"
;;
d)
FILEDIR="$OPTARG"
;;
I)
ITERATIONS="$OPTARG"
if [ "$ITERATIONS" -le 0 ]; then
fail "Iterations must be greater than 0."
fi
;;
s)
FILESIZE="$OPTARG"
;;
r)
RUNFILES="$OPTARG"
;;
t)
if [ -n "$SINGLETEST" ]; then
fail "-t can only be provided once."
fi
SINGLETEST="$OPTARG"
;;
T)
TAGS="$OPTARG"
;;
u)
SINGLETESTUSER="$OPTARG"
;;
?)
usage
exit
;;
esac
done
shift $((OPTIND-1))
FILES=${FILES:-"$FILEDIR/file-vdev0 $FILEDIR/file-vdev1 $FILEDIR/file-vdev2"}
LOOPBACKS=${LOOPBACKS:-""}
if [ -n "$SINGLETEST" ]; then
if [ -n "$TAGS" ]; then
fail "-t and -T are mutually exclusive."
fi
RUNFILE_DIR="/var/tmp"
RUNFILES="zfs-tests.$$.run"
SINGLEQUIET="False"
if [ -n "$QUIET" ]; then
SINGLEQUIET="True"
fi
cat >$RUNFILE_DIR/$RUNFILES << EOF
[DEFAULT]
pre =
quiet = $SINGLEQUIET
pre_user = root
user = $SINGLETESTUSER
timeout = 600
post_user = root
post =
outputdir = /var/tmp/test_results
EOF
SINGLETESTDIR=$(dirname "$SINGLETEST")
SINGLETESTFILE=$(basename "$SINGLETEST")
SETUPSCRIPT=
CLEANUPSCRIPT=
if [ -f "$STF_SUITE/$SINGLETESTDIR/setup.ksh" ]; then
SETUPSCRIPT="setup"
fi
if [ -f "$STF_SUITE/$SINGLETESTDIR/cleanup.ksh" ]; then
CLEANUPSCRIPT="cleanup"
fi
cat >>$RUNFILE_DIR/$RUNFILES << EOF
[$SINGLETESTDIR]
tests = ['$SINGLETESTFILE']
pre = $SETUPSCRIPT
post = $CLEANUPSCRIPT
tags = ['functional']
EOF
fi
#
# Use default tag if none was specified
#
TAGS=${TAGS:='functional'}
#
# Attempt to locate the runfiles describing the test workload.
#
R=""
IFS=,
for RUNFILE in $RUNFILES; do
if [ -n "$RUNFILE" ]; then
SAVED_RUNFILE="$RUNFILE"
RUNFILE=$(find_runfile "$RUNFILE")
[ -z "$RUNFILE" ] && fail "Cannot find runfile: $SAVED_RUNFILE"
R="$R,$RUNFILE"
fi
if [ ! -r "$RUNFILE" ]; then
fail "Cannot read runfile: $RUNFILE"
fi
done
unset IFS
RUNFILES=${R#,}
#
# This script should not be run as root. Instead the test user, which may
# be a normal user account, needs to be configured such that it can
# run commands via sudo passwordlessly.
#
if [ "$(id -u)" = "0" ]; then
fail "This script must not be run as root."
fi
if [ "$(sudo whoami)" != "root" ]; then
fail "Passwordless sudo access required."
fi
#
# Constrain the available binaries to a known set.
#
constrain_path
#
# Check if ksh exists
#
if [ "$UNAME" = "FreeBSD" ]; then
sudo ln -fs /usr/local/bin/ksh93 /bin/ksh
fi
[ -e "$STF_PATH/ksh" ] || fail "This test suite requires ksh."
[ -e "$STF_SUITE/include/default.cfg" ] || fail \
"Missing $STF_SUITE/include/default.cfg file."
#
# Verify the ZFS module stack is loaded.
#
if [ "$STACK_TRACER" = "yes" ]; then
sudo "${ZFS_SH}" -S >/dev/null 2>&1
else
sudo "${ZFS_SH}" >/dev/null 2>&1
fi
#
# Attempt to cleanup all previous state for a new test run.
#
if [ "$CLEANUPALL" = "yes" ]; then
cleanup_all
fi
#
# By default preserve any existing pools
# NOTE: Since 'zpool list' outputs a newline-delimited list convert $KEEP from
# space-delimited to newline-delimited.
#
if [ -z "${KEEP}" ]; then
KEEP="$(sudo "$ZPOOL" list -H -o name)"
if [ -z "${KEEP}" ]; then
KEEP="rpool"
fi
else
KEEP="$(echo "$KEEP" | tr '[:blank:]' '\n')"
fi
#
# NOTE: The following environment variables are undocumented
# and should be used for testing purposes only:
#
# __ZFS_POOL_EXCLUDE - don't iterate over the pools it lists
# __ZFS_POOL_RESTRICT - iterate only over the pools it lists
#
# See libzfs/libzfs_config.c for more information.
#
if [ "$UNAME" = "FreeBSD" ] ; then
__ZFS_POOL_EXCLUDE="$(echo "$KEEP" | tr -s '\n' ' ')"
else
__ZFS_POOL_EXCLUDE="$(echo "$KEEP" | sed ':a;N;s/\n/ /g;ba')"
fi
. "$STF_SUITE/include/default.cfg"
#
# No DISKS have been provided so a basic file or loopback based devices
# must be created for the test suite to use.
#
if [ -z "${DISKS}" ]; then
#
# If this is a performance run, prevent accidental use of
# loopback devices.
#
[ "$TAGS" = "perf" ] && fail "Running perf tests without disks."
#
# Create sparse files for the test suite. These may be used
# directory or have loopback devices layered on them.
#
for TEST_FILE in ${FILES}; do
[ -f "$TEST_FILE" ] && fail "Failed file exists: ${TEST_FILE}"
truncate -s "${FILESIZE}" "${TEST_FILE}" ||
fail "Failed creating: ${TEST_FILE} ($?)"
done
#
# If requested setup loopback devices backed by the sparse files.
#
if [ "$LOOPBACK" = "yes" ]; then
test -x "$LOSETUP" || fail "$LOSETUP utility must be installed"
for TEST_FILE in ${FILES}; do
if [ "$UNAME" = "FreeBSD" ] ; then
MDDEVICE=$(sudo "${LOSETUP}" -a -t vnode -f "${TEST_FILE}")
if [ -z "$MDDEVICE" ] ; then
fail "Failed: ${TEST_FILE} -> loopback"
fi
DISKS="$DISKS $MDDEVICE"
LOOPBACKS="$LOOPBACKS $MDDEVICE"
else
TEST_LOOPBACK=$(sudo "${LOSETUP}" -f)
sudo "${LOSETUP}" "${TEST_LOOPBACK}" "${TEST_FILE}" ||
fail "Failed: ${TEST_FILE} -> ${TEST_LOOPBACK}"
BASELOOPBACK=$(basename "$TEST_LOOPBACK")
DISKS="$DISKS $BASELOOPBACK"
LOOPBACKS="$LOOPBACKS $TEST_LOOPBACK"
fi
done
DISKS=${DISKS# }
LOOPBACKS=${LOOPBACKS# }
else
DISKS="$FILES"
fi
fi
#
# It may be desirable to test with fewer disks than the default when running
# the performance tests, but the functional tests require at least three.
#
NUM_DISKS=$(echo "${DISKS}" | awk '{print NF}')
if [ "$TAGS" != "perf" ]; then
[ "$NUM_DISKS" -lt 3 ] && fail "Not enough disks ($NUM_DISKS/3 minimum)"
fi
#
# Disable SELinux until the ZFS Test Suite has been updated accordingly.
#
if [ -x "$STF_PATH/setenforce" ]; then
sudo setenforce permissive >/dev/null 2>&1
fi
#
# Enable internal ZFS debug log and clear it.
#
if [ -e /sys/module/zfs/parameters/zfs_dbgmsg_enable ]; then
sudo /bin/sh -c "echo 1 >/sys/module/zfs/parameters/zfs_dbgmsg_enable"
sudo /bin/sh -c "echo 0 >/proc/spl/kstat/zfs/dbgmsg"
fi
msg
msg "--- Configuration ---"
msg "Runfiles: $RUNFILES"
msg "STF_TOOLS: $STF_TOOLS"
msg "STF_SUITE: $STF_SUITE"
msg "STF_PATH: $STF_PATH"
msg "FILEDIR: $FILEDIR"
msg "FILES: $FILES"
msg "LOOPBACKS: $LOOPBACKS"
msg "DISKS: $DISKS"
msg "NUM_DISKS: $NUM_DISKS"
msg "FILESIZE: $FILESIZE"
msg "ITERATIONS: $ITERATIONS"
msg "TAGS: $TAGS"
msg "STACK_TRACER: $STACK_TRACER"
msg "Keep pool(s): $KEEP"
msg "Missing util(s): $STF_MISSING_BIN"
msg ""
export STF_TOOLS
export STF_SUITE
export STF_PATH
export DISKS
export FILEDIR
export KEEP
export __ZFS_POOL_EXCLUDE
export TESTFAIL_CALLBACKS
export PATH=$STF_PATH
if [ "$UNAME" = "FreeBSD" ] ; then
mkdir -p "$FILEDIR" || true
RESULTS_FILE=$(mktemp -u "${FILEDIR}/zts-results.XXXXXX")
REPORT_FILE=$(mktemp -u "${FILEDIR}/zts-report.XXXXXX")
else
RESULTS_FILE=$(mktemp -u -t zts-results.XXXXXX -p "$FILEDIR")
REPORT_FILE=$(mktemp -u -t zts-report.XXXXXX -p "$FILEDIR")
fi
#
# Run all the tests as specified.
#
msg "${TEST_RUNNER} ${QUIET:+-q}" \
"-c \"${RUNFILES}\"" \
"-T \"${TAGS}\"" \
"-i \"${STF_SUITE}\"" \
"-I \"${ITERATIONS}\""
${TEST_RUNNER} ${QUIET:+-q} \
-c "${RUNFILES}" \
-T "${TAGS}" \
-i "${STF_SUITE}" \
-I "${ITERATIONS}" \
2>&1 | tee "$RESULTS_FILE"
#
# Analyze the results.
#
${ZTS_REPORT} "$RESULTS_FILE" >"$REPORT_FILE"
RESULT=$?
cat "$REPORT_FILE"
RESULTS_DIR=$(awk '/^Log directory/ { print $3 }' "$RESULTS_FILE")
if [ -d "$RESULTS_DIR" ]; then
cat "$RESULTS_FILE" "$REPORT_FILE" >"$RESULTS_DIR/results"
fi
rm -f "$RESULTS_FILE" "$REPORT_FILE"
if [ -n "$SINGLETEST" ]; then
rm -f "$RUNFILES" >/dev/null 2>&1
fi
exit ${RESULT}