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SSD NVME M2 Speed Performance Test

posted Aug 16, 2018, 2:07 PM by Dong Xu   [ updated Aug 24, 2018, 10:49 AM ]
For Samsung regular SSD, need to enable RAPID MODE, increase performance to NVME level

First of all,  need to change the settings in the BIOS (DMI/PCIe speed link to Gen 3), Otherwise will only get about 900mb/s. Also the M slot and PCIe adapter needs to support X4 mode (or 4 lanes).  


dd test below is not very accurate on Linux. Phoronix Test Suite works better


dd if=/dev/zero of=output bs=100k count=10k

This will write a 1000MB file in the current directory.

sudo mount -t tmpfs -o size=10g ext4 /ram

This will create a 10GB ramdrive and mount it to /ram