There's no problem here, only want to ask a question about the huge difference I observe when iopinging a mount point vs his equivalent block device. I've searched a bit about it but cannot find a clue, could someone explain what is happening ?
On mount point (sudo ioping -c4 /)
--- / (ext4 /dev/dm-0) ioping statistics ---
4 requests completed in 3.00 s, 2.08 k iops, 8.15 MiB/s
min/avg/max/mdev = 288 us / 479 us / 752 us / 169 us
On block device (sudo ioping -c4 /dev/dm-0)
--- /dev/dm-0 (block device 5.51 GiB) ioping statistics ---
4 requests completed in 3.05 s, 75 iops, 302.0 KiB/s
min/avg/max/mdev = 7.72 ms / 13.2 ms / 20.1 ms / 4.77 ms
Hi,
There's no problem here, only want to ask a question about the huge difference I observe when iopinging a mount point vs his equivalent block device. I've searched a bit about it but cannot find a clue, could someone explain what is happening ?
On mount point (
sudo ioping -c4 /
)On block device (
sudo ioping -c4 /dev/dm-0
)Thanks for your help !