SSD: Samsung 830 128GB
Model Number: MZ-7PC128D
Firmware: CXM03B1Q
Capacity: 128GB
Filesystem: ext4,noatime,nodiratime,barrier=0,nobh,commit=100,nouser_xattr,data=ordered,discard
Notes: SATA III
$ hdparm -Tt /dev/sda /dev/sda: Timing cached reads: 15558 MB in 2.00 seconds = 7783.64 MB/sec Timing buffered disk reads: 1458 MB in 3.00 seconds = 485.44 MB/sec $ dd if=/dev/zero of=tempfile bs=1M count=1024 conv=fdatasync,notrunc 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 3.83493 s, 280 MB/s $ echo 3 > /proc/sys/vm/drop_caches $ dd if=tempfile of=/dev/null bs=1M count=1024 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 3.19219 s, 336 MB/s $ dd if=tempfile of=/dev/null bs=1M count=1024 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 0.172581 s, 6.2 GB/s