And here’s an example where the output media is an SD card: rbthomas@nuc8:/media/rbthomas/99602c92-f887-4578-b6bc-39c91d49c43c/rbthomas$ dd if=/dev/zero of=tempfile bs=1M count=1024 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 0.48058 s, 2.2 GB/s
rbthomas@nuc8:/media/rbthomas/99602c92-f887-4578-b6bc-39c91d49c43c/rbthomas$ dd if=/dev/zero of=tempfile bs=1M count=1024 oflag=sync 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 34.044 s, 31.5 MB/s > On Jul 23, 2019, at 1:19 AM, Rick Thomas <rbtho...@pobox.com> wrote: > > Here’s an example from one of my machines with a SATA-III SSD and lots of RAM: > > rbthomas@nuc8:~$ dd if=/dev/zero of=tempfile bs=1M count=1024 > 1024+0 records in > 1024+0 records out > 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.77789 s, 604 MB/s > > rbthomas@nuc8:~$ dd if=/dev/zero of=tempfile bs=1M count=1024 oflag=sync > 1024+0 records in > 1024+0 records out > 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 4.88158 s, 220 MB/s
