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Added command-line option -w.

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1321 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2009-11-06 13:17:14 +00:00
parent a3460da98d
commit 4a72d7efa3
1 changed files with 16 additions and 8 deletions
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scripts/blockdev-perftest
+16 -8
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@@ -39,6 +39,7 @@ usage() {
echo " -r - only perform the read test."
echo " -s - logarithm base two of the I/O size."
echo " -t - username and hostname of the target to drop the caches on."
echo " -w - only perform the write test."
echo " <dev> - block device to run the I/O performance test on."
}
@@ -130,7 +131,8 @@ log2_io_size=30 # 1 GB
log2_min_blocksize=9 # 512 bytes
log2_max_blocksize=26 # 64 MB
iotype=direct
read_test_only=false
perform_read_test=true
perform_write_test=true
target_login=""
use_fio=false
verify_device_data=true
@@ -140,7 +142,7 @@ verify_device_data=true
# Argument processing #
#########################
set -- $(/usr/bin/getopt "adfhi:jm:M:nrs:t:" "$@")
set -- $(/usr/bin/getopt "adfhi:jm:M:nrs:t:w" "$@")
while [ "$1" != "${1#-}" ]
do
case "$1" in
@@ -152,9 +154,10 @@ do
'-m') log2_min_blocksize="$2"; shift; shift;;
'-M') log2_max_blocksize="$2"; shift; shift;;
'-n') verify_device_data="false"; shift;;
'-r') read_test_only="true"; shift;;
'-r') perform_write_test="false"; shift;;
'-s') log2_io_size="$2"; shift; shift;;
'-t') target_login="$2"; shift; shift;;
'-w') perform_read_test="false"; shift;;
'--') shift;;
*) usage; exit 1;;
esac
@@ -177,19 +180,20 @@ if [ ! -e "${device}" ]; then
exit 1
fi
if [ "${read_test_only}" = "false" -a ! -w "${device}" ]; then
if [ "${perform_write_test}" = "true" -a ! -w "${device}" ]; then
echo "Error: device ${device} is not writeable."
exit 1
fi
if [ $(dd if="${device}" bs=1M count=$(pow2 $(($log2_io_size - 20))) \
if [ "${perform_read_test}" = "true" -a \
$(dd if="${device}" bs=1M count=$(pow2 $(($log2_io_size - 20))) \
2>/dev/null | wc --bytes) -lt $(pow2 $log2_io_size) ]
then
echo "Error: device ${device} contains less than $(pow2 $log2_io_size) bytes."
exit 1
fi
if [ "${read_test_only}" = "false" -a "${verify_device_data}" = "true" ] \
if [ "${perform_write_test}" = "true" -a "${verify_device_data}" = "true" ] \
&& [ "${force}" != "true" ] \
&& ! cmp -s -n $(pow2 $log2_io_size) "${device}" /dev/zero
then
@@ -255,7 +259,7 @@ do
i=0
while [ $i -lt ${iterations} ]
do
if [ "${read_test_only}" = "false" ]; then
if [ "${perform_write_test}" = "true" ]; then
time_write ${bs} ${count}
else
echo " 0 s,"
@@ -266,7 +270,11 @@ do
i=0
while [ $i -lt ${iterations} ]
do
time_read ${bs} ${count}
if [ "${perform_read_test}" = "true" ]; then
time_read ${bs} ${count}
else
echo " 0 s,"
fi
i=$((i+1))
done | echo_and_calc_avg "%8.3f " ${iosize} ${bs}
printf "\n"