https://www.shellhacks.com/disk-speed-test-read-write-hdd-ssd-perfomanc…
我的西数蓝盘,通过mini-pcie转接的卡转接到主板的:
dd if=tempfile of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 1.24909 s, 860 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, 0.233601 s, 4.6 GB/s
HDPARM
NVME它分的两个区:
sudo hdparm -Tt /dev/nvme0n1p1
/dev/nvme0n1p1:
Timing cached reads: 9948 MB in 2.00 seconds = 4982.58 MB/sec
Timing buffered disk reads: 1024 MB in 1.27 seconds = 808.23 MB/sec
sudo hdparm -Tt /dev/nvme0n1p2
/dev/nvme0n1p2:
Timing cached reads: 10496 MB in 2.00 seconds = 5257.21 MB/sec
Timing buffered disk reads: 2234 MB in 3.00 seconds = 744.67 MB/sec
我想大概是应为mini-pcie转接之后,interface限制了吧。否则,西数蓝盘不是应该达到1700M/s吗?
所以,打算把现在这些低端的主板都清理了,换两块支持pcie 3代的华硕主板。