>>541
安いWAVLINKのケースとWD BLACK SN750 1TB
% dd if=/dev/zero of=/Volumes/SSD/1G bs=1g count=1
1+0 records in
1+0 records out
1073741824 bytes transferred in 0.971530 secs (1105207114 bytes/sec)
% sudo purge
% dd if=/Volumes/SSD/1G of=/dev/zero bs=1g
1+0 records in
1+0 records out
1073741824 bytes transferred in 0.373996 secs (2870998001 bytes/sec)