Timing buffered disk reads: 398 MB in 3.00 seconds = 132.45 MB/sec
write:
#> dd if=/dev/zero of=./tempfile bs=1M count=1024 conv=fdatasync,notrunc
1073741824 Bytes (1,1 GB) kopiert, 12,8038 s, 83,9 MB/s
read:
#> echo 3 > /proc/sys/vm/drop_caches
#> dd if=./tempfile of=/dev/null bs=1M count=1024
1073741824 Bytes (1,1 GB) kopiert, 6,79724 s, 158 MB/s
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