Low NVME Speed?
by business_kid from LinuxQuestions.org on (#6J2ST)
I have an Asrock B550M Pro4, replacing my previous MSI B550M Bazooka m/b. There is a problem
Code:dec@Ebony:~$sudo hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 53828 MB in 1.99 seconds = 26983.04 MB/sec
Timing buffered disk reads: 380 MB in 3.01 seconds = 126.08 MB/sec
dec@Ebony:~$sudo hdparm -Tt /dev/nvme0n1
/dev/nvme0n1:
Timing cached reads: 56116 MB in 1.99 seconds = 28133.82 MB/sec
Timing buffered disk reads: 2046 MB in 3.00 seconds = 681.45 MB/secThat's the problem. I included sda just to show the box is no slouch, although it's not exotic either. But here's the rub: I had this NVME in a different motherboard (MSI B550M Bazooka) and hdparm reported 2.0 GB/S. The m/b was swapped out by a friend. I didn't have hands on the job, because I can only use 1 of them. I already fixed an issue with the ram. Am I missing pcie lanes? Could this be on pcie-3.x instead of pcie-4.x? There's 2 nvme sockets, and I passed a warning not to use the slower one. Any other possible causes?
Code:dec@Ebony:~$sudo hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 53828 MB in 1.99 seconds = 26983.04 MB/sec
Timing buffered disk reads: 380 MB in 3.01 seconds = 126.08 MB/sec
dec@Ebony:~$sudo hdparm -Tt /dev/nvme0n1
/dev/nvme0n1:
Timing cached reads: 56116 MB in 1.99 seconds = 28133.82 MB/sec
Timing buffered disk reads: 2046 MB in 3.00 seconds = 681.45 MB/secThat's the problem. I included sda just to show the box is no slouch, although it's not exotic either. But here's the rub: I had this NVME in a different motherboard (MSI B550M Bazooka) and hdparm reported 2.0 GB/S. The m/b was swapped out by a friend. I didn't have hands on the job, because I can only use 1 of them. I already fixed an issue with the ram. Am I missing pcie lanes? Could this be on pcie-3.x instead of pcie-4.x? There's 2 nvme sockets, and I passed a warning not to use the slower one. Any other possible causes?