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dd bs=64k count=4k if=/dev/zero of=test oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB, 256 MiB) copied, 3.11724 s, 86.1 MB/s
dd bs=64k count=4k if=/dev/zero of=test oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB, 256 MiB) copied, 2.96343 s, 90.6 MB/s |