CommentStreams:E169237e40e8abdd864117ad0aa7151b

This doesn't look right.

morey@rpi5:~ $ dd if=/dev/zero of=./Testingfile bs=100M count=10 oflag=direct dd if=./Testingfile of=/dev/zero bs=100M count=10 oflag=dsync 10+0 records in 10+0 records out 1048576000 bytes (1.0 GB, 1000 MiB) copied, 2.72273 s, 385 MB/s 10+0 records in 10+0 records out 1048576000 bytes (1.0 GB, 1000 MiB) copied, 2.61485 s, 401 MB/s

Any ideas on what is wrong?