LVM raid 10 and NVME

Hello

I am running a LVM raid 10 on four nvme on a Proxmox 7.2 machine.
The hardware is a Dell R740XD with 12 NVME ports and these disks are using the same controller.

It looks like this:

[email protected]:~# pvdisplay
  --- Physical volume ---
  PV Name               /dev/nvme0n1
  VG Name               vg-local_nvme1
  PV Size               <1.75 TiB / not usable <4.34 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              457854
  Free PE               0
  Allocated PE          457854
  PV UUID               BnKjnc-9qnR-gOpk-24Iw-u1ew-zrl1-1ZfoD8

  --- Physical volume ---
  PV Name               /dev/nvme1n1
  VG Name               vg-local_nvme1
  PV Size               <1.75 TiB / not usable <4.34 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              457854
  Free PE               0
  Allocated PE          457854
  PV UUID               RFMNCo-2SRS-5ix2-4Tnn-vBdh-QISv-TiqTEi

  --- Physical volume ---
  PV Name               /dev/nvme2n1
  VG Name               vg-local_nvme1
  PV Size               <1.75 TiB / not usable <4.34 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              457854
  Free PE               0
  Allocated PE          457854
  PV UUID               d97rc2-TujY-qdBT-1Qgo-Bokz-8Que-JYlKIr

  --- Physical volume ---
  PV Name               /dev/nvme3n1
  VG Name               vg-local_nvme1
  PV Size               <1.75 TiB / not usable <4.34 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              457854
  Free PE               0
  Allocated PE          457854
  PV UUID               i2EDH0-QvRx-1JV8-EEKe-Vrq4-CMzA-gtEhXM

vg:

[email protected]:~# vgdisplay
  --- Volume group ---
  VG Name               vg-local_nvme1
  System ID
  Format                lvm2
  Metadata Areas        4
  Metadata Sequence No  33
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                1
  Open LV               1
  Max PV                0
  Cur PV                4
  Act PV                4
  VG Size               <6.99 TiB
  PE Size               4.00 MiB
  Total PE              1831416
  Alloc PE / Size       1831416 / <6.99 TiB
  Free  PE / Size       0 / 0
  VG UUID               pRoEAv-CQws-CMB0-VofG-GUYM-E7ka-t605tP

And created like this:

lvcreate --type raid10 --stripes 2 --mirrors 1 -n lv-nvme1 -l 100%FREE vg-local_nvme1

The scheduler on all:

[email protected]:~# cat /sys/block/nvme0n1/queue/scheduler
[none] mq-deadline

So, I am not used to nvme and running it in a local RAID and I wonder how I should measure the performance in a standardised way to see if I get the iops I am hoping for.
What should I do? What could I have missed? Is it wrong to use lvm raid?
All disks are also on the same CPU.

Thanks in advance!