Wednesday, July 4, 2012

A simple dd test (SSD vs HD)


This is a simple and not scientific benchmark, using the dd UNIX command, that will give you an idea of how faster an SSD than a usual hard disk is.

1TB SATA hard disk
$ dd if=/dev/zero of=bigfile1 bs=10000000 count=512
512+0 records in
512+0 records out
5120000000 bytes transferred in 59.423885 secs (86160640 bytes/sec)

256Gb SATA SSD
$ dd if=/dev/zero of=bigfile1 bs=10000000 count=512
512+0 records in
512+0 records out
5120000000 bytes transferred in 22.594125 secs (226607583 bytes/sec)

The results are impressive!

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