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|
#!/usr/bin/env bash
#
# Test VFS module aio_ratelimit
SELF=$(basename "$0")
if [ $# -lt 5 ]; then
echo Usage: "${SELF}" SERVERCONFFILE SMBCLIENT \
SERVER LOCAL_PATH SHARENAME
exit 1
fi
CONF="$1"
SMBCLIENT="$2"
SERVER="$3"
LOCAL_PATH="$4"
SHARE="$5"
# Do not let deprecated option warnings muck this up
SAMBA_DEPRECATED_SUPPRESS=1
export SAMBA_DEPRECATED_SUPPRESS
incdir="$(dirname "$0")/../../../testprogs/blackbox"
. $incdir/subunit.sh
failed=0
# Prepare
cd $SELFTEST_TMPDIR || exit 1
# Test 1: Basic rate limiting
test_aio_ratelimit_basic()
{
local testfile="${FUNCNAME[0]}"
local src="${LOCAL_PATH}/${testfile}-src"
local dst="${testfile}-dst"
local tgt="${testfile}-tgt"
# Small file to avoid timeout
dd if=/dev/urandom of="${src}" bs=10K count=1
stat "$src"
SECONDS=0
# Write
CLI_FORCE_INTERACTIVE=1 ${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "put ${src} ${dst}"
ret=$?
if [ $ret != 0 ]; then
printf "failed to write file: %s\n" "${ret}"
return 1
fi
# Read 20 times to trigger rate limiting
count=1
while [ $count -le 20 ]; do
CLI_FORCE_INTERACTIVE=1 \
${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "get ${dst} ${tgt}"
ret=$?
if [ $ret != 0 ]; then
printf "failed to read file: %s\n" "${ret}"
return 1
fi
(( count++ ))
done
# Expect rate-limiting delay
if [ ${SECONDS} -lt 1 ]; then
printf "no rate-limiting delay observed: elapsed-secs=%d\n" "${SECONDS}"
return 1
fi
# Delete
CLI_FORCE_INTERACTIVE=1 ${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "del ${dst}"
ret=$?
if [ $ret != 0 ]; then
printf "failed to delete file: %s\n" "${ret}"
return 1
fi
# Cleanups
rm -f "${src}" "${tgt}"
}
# Test 2: Burst behavior - initial reads should be fast
test_aio_ratelimit_burst()
{
local testfile="${FUNCNAME[0]}"
local src="${LOCAL_PATH}/${testfile}-src"
local dst="${testfile}-dst"
local tgt="${testfile}-tgt"
# Small file
dd if=/dev/urandom of="${src}" bs=5K count=1
stat "$src"
# Write
CLI_FORCE_INTERACTIVE=1 ${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "put ${src} ${dst}"
ret=$?
if [ $ret != 0 ]; then
printf "failed to write file: %s\n" "${ret}"
return 1
fi
# First 3 reads should be fast (using burst)
SECONDS=0
count=1
while [ $count -le 3 ]; do
CLI_FORCE_INTERACTIVE=1 \
${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "get ${dst} ${tgt}"
ret=$?
if [ $ret != 0 ]; then
printf "failed to read file: %s\n" "${ret}"
return 1
fi
(( count++ ))
done
# Should complete quickly (burst capacity)
if [ ${SECONDS} -gt 1 ]; then
printf "burst reads too slow: elapsed-secs=%d\n" "${SECONDS}"
return 1
fi
# Delete
CLI_FORCE_INTERACTIVE=1 ${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "del ${dst}"
# Cleanups
rm -f "${src}" "${tgt}"
}
# Test 3: Recovery after idle
test_aio_ratelimit_recovery()
{
local testfile="${FUNCNAME[0]}"
local src="${LOCAL_PATH}/${testfile}-src"
local dst="${testfile}-dst"
local tgt="${testfile}-tgt"
# Small file
dd if=/dev/urandom of="${src}" bs=5K count=1
stat "$src"
# Write
CLI_FORCE_INTERACTIVE=1 ${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "put ${src} ${dst}"
ret=$?
if [ $ret != 0 ]; then
printf "failed to write file: %s\n" "${ret}"
return 1
fi
# Exhaust burst with 5 rapid reads
count=1
while [ $count -le 5 ]; do
CLI_FORCE_INTERACTIVE=1 \
${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "get ${dst} ${tgt}" > /dev/null 2>&1
(( count++ ))
done
# Wait for tokens to refill
sleep 2
# Read again - should be reasonably fast (tokens refilled)
SECONDS=0
CLI_FORCE_INTERACTIVE=1 \
${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "get ${dst} ${tgt}"
ret=$?
if [ $ret != 0 ]; then
printf "failed to read after recovery: %s\n" "${ret}"
return 1
fi
# Should complete quickly (tokens recovered)
if [ ${SECONDS} -gt 1 ]; then
printf "recovery too slow: elapsed-secs=%d\n" "${SECONDS}"
return 1
fi
# Delete
CLI_FORCE_INTERACTIVE=1 ${SMBCLIENT} //${SERVER}/${SHARE} ${CONF} \
-U${USER}%${PASSWORD} -c "del ${dst}"
# Cleanups
rm -f "${src}" "${tgt}"
}
# Actual tests
testit "test_aio_ratelimit_basic" \
test_aio_ratelimit_basic ||
failed=$(expr $failed + 1)
testit "test_aio_ratelimit_burst" \
test_aio_ratelimit_burst ||
failed=$(expr $failed + 1)
testit "test_aio_ratelimit_recovery" \
test_aio_ratelimit_recovery ||
failed=$(expr $failed + 1)
testok $0 $failed
|
