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41tair/gist:9ee2c076d8c6ea8f4f4b3b58280d40c9

Created June 3, 2019 06:45
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test io with dd simple
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gistfile1.txt
dd if=/dev/zero of=a.bin bs=4096 count=524288 conv=fdatasync
dd if=a.bin of=/dev/null bs=4096 count=524288 iflag=direct
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