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fedir/dd_dsync_check.sh

Last active March 15, 2022 20:59
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Disk performance check with dd dsync (synchronized I/O for data)
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dd_dsync_check.sh
#!/bin/bash
# Small files (64KB)
dd if=/dev/zero of=./dsync64KB.img bs=64 count=1000 oflag=dsync 2>&1|tee dsync-test-1-64KB.log
# Medium files (8MB)
dd if=/dev/zero of=./dsync8MB.img bs=8k count=1000 oflag=dsync 2>&1|tee dsync-test-2-8MB.log
# Big files (128MB)
dd if=/dev/zero of=./dsync128MB.img bs=128k count=1000 oflag=dsync 2>&1|tee dsync-test-3-128MB.log
for log in dsync*.log; do echo "## $log ##"; cat $log; done
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