model: Sangsung 960 EVO 250G
Test method: Put the SSD on M.2 extend board and connects on ROCK960 M.2 port.
Test in PCIE Gen1
dd
dd if=/dev/zero of=/dev/nvme0n1 bs=1G count=1 oflag=direct
dd if=/dev/nvme0n1 of=/dev/null bs=1G count=1
|
model |
read |
write |
250G |
Samsung EVO 960 |
480MB/s |
462MB/s |
fio
1M
fio --name=write --ioengine=libaio --iodepth=4 --rw=write --bs=1M --direct=1 --size=2G --numjobs=30 --runtime=60 --group_reporting --filename=/dev/nvme0n1
250G Samsung EVO 960 WRITE: io=46939MB, aggrb=799772KB/s, minb=799772KB/s, maxb=799772KB/s, mint=60099msec, maxt=60099msec
fio --name=read --ioengine=libaio --iodepth=4 --rw=read --bs=1M --direct=1 --size=2G --numjobs=30 --runtime=60 --group_reporting --filename=/dev/nvme0n1
250G Samsung EVO 960 READ: io=46704MB, aggrb=795901KB/s, minb=795901KB/s, maxb=795901KB/s, mint=60089msec, maxt=60089msec
4K
fio --name=randwrite --ioengine=libaio --iodepth=4 --rw=randwrite --bs=4K --direct=1 --size=2G --numjobs=30 --runtime=60 --group_reporting --filename=/dev/nvme0n1
250G Samsung EVO 960 WRITE: io=37011MB, aggrb=631540KB/s, minb=631540KB/s, maxb=631540KB/s, mint=60011msec, maxt=60011msec
fio --name=randread --ioengine=libaio --iodepth=4 --rw=randread --bs=4K --direct=1 --size=2G --numjobs=30 --runtime=60 --group_reporting --filename=/dev/nvme0n1
250G Samsung EVO 960 READ: io=40486MB, aggrb=690933KB/s, minb=690933KB/s, maxb=690933KB/s, mint=60002msec, maxt=60002msec
Test in PCIE Gen2
dd
dd if=/dev/zero of=/dev/nvme0n1 bs=512M count=1 oflag=direct
dd if=/dev/nvme0n1 of=/dev/null bs=512M count=1
|
model |
read |
write |
250G |
Samsung EVO 960 |
391MB/s |
351MB/s |
fio
1M
fio --name=write --ioengine=libaio --iodepth=4 --rw=write --bs=1M --direct=1 --size=2G --numjobs=30 --runtime=60 --group_reporting --filename=/dev/nvme0n1
WRITE: io=61440MB, aggrb=1233.6MB/s, minb=1233.6MB/s, maxb=1233.6MB/s, mint=49807msec, maxt=49807msec
fio --name=read --ioengine=libaio --iodepth=4 --rw=read --bs=1M --direct=1 --size=2G --numjobs=30 --runtime=60 --group_reporting --filename=/dev/nvme0n1
READ: io=59910MB, aggrb=997.54MB/s, minb=997.54MB/s, maxb=997.54MB/s, mint=60059msec, maxt=60059msec
4K
fio --name=randwrite --ioengine=libaio --iodepth=4 --rw=randwrite --bs=4K --direct=1 --size=2G --numjobs=30 --runtime=60 --group_reporting --filename=/dev/nvme0n1
WRITE: io=37185MB, aggrb=634462KB/s, minb=634462KB/s, maxb=634462KB/s, mint=60016msec, maxt=60016msec
fio --name=randread --ioengine=libaio --iodepth=4 --rw=randread --bs=4K --direct=1 --size=2G --numjobs=30 --runtime=60 --group_reporting --filename=/dev/nvme0n1
READ: io=46186MB, aggrb=788199KB/s, minb=788199KB/s, maxb=788199KB/s, mint=60003msec, maxt=60003msec