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scripts/blockdev-perftest: Speed up block device size determination

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4615 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2012-11-13 13:20:56 +00:00
parent e2155e10bf
commit ff45bf36a6
1 changed files with 1 additions and 2 deletions
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3
scripts/blockdev-perftest
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@@ -210,8 +210,7 @@ if [ "${perform_write_test}" = "true" -a ! -w "${device}" ]; then
fi
if [ "${perform_read_test}" = "true" -a \
$(dd if="${device}" bs=1M count=$(pow2 $(($log2_io_size - 20))) \
2>/dev/null | wc --bytes) -lt $(pow2 $log2_io_size) ]
"$(($(</sys/class/block/$(basename $device)/size) * 512))" -lt $(pow2 $log2_io_size) ]
then
echo "Error: device ${device} contains less than $(pow2 $log2_io_size) bytes."
exit 1