It doesn't seem to work on the Samsung Pro Plus 128GB (2023 version). I did the rpi-update and added the line in config.txt, but no performance difference.
This is a very fast card even without the CQ support but hopefully it can be made to go even faster:
Random write = 2380 IOPS
Random read = 6723 IOPS
Code:
uname -aLinux raspberrypi 6.6.22-v8-16k+ #1746 SMP PREEMPT Wed Mar 20 17:21:57 GMT 2024 aarch64 GNU/LinuxCode:
dmesg | grep mmc0[ 0.430867] mmc0: CQHCI version 5.10[ 0.465438] mmc0: SDHCI controller on 1000fff000.mmc [1000fff000.mmc] using ADMA 64-bit[ 0.587094] mmc0: non-supported SD ext reg layout[ 0.587098] mmc0: new ultra high speed SDR104 SDXC card at address 0001[ 0.587283] mmcblk0: mmc0:0001 FD4Q9 119 GiB[ 0.588331] mmcblk0: mmc0:0001 FD4Q9 119 GiBCode:
find /sys/bus/mmc/devices/mmc0\:*/ -type f -not -path "*block*" -not -path "*power*" -print -exec cat {} \;/sys/bus/mmc/devices/mmc0:0001/fwrev0x0/sys/bus/mmc/devices/mmc0:0001/ueventDRIVER=mmcblkMMC_TYPE=SDMMC_NAME=FD4Q9MODALIAS=mmc:block/sys/bus/mmc/devices/mmc0:0001/cid1b534d464434513930610256d7a17c00/sys/bus/mmc/devices/mmc0:0001/rca0x0001/sys/bus/mmc/devices/mmc0:0001/csd400e0032db790003baff7f800a400000/sys/bus/mmc/devices/mmc0:0001/manfid0x00001b/sys/bus/mmc/devices/mmc0:0001/ocr0x00300000/sys/bus/mmc/devices/mmc0:0001/preferred_erase_size4194304/sys/bus/mmc/devices/mmc0:0001/typeSD/sys/bus/mmc/devices/mmc0:0001/hwrev0x3/sys/bus/mmc/devices/mmc0:0001/date12/2023/sys/bus/mmc/devices/mmc0:0001/dsr0x404/sys/bus/mmc/devices/mmc0:0001/erase_size512/sys/bus/mmc/devices/mmc0:0001/removableremovable/sys/bus/mmc/devices/mmc0:0001/oemid0x534d/sys/bus/mmc/devices/mmc0:0001/serial0x610256d7/sys/bus/mmc/devices/mmc0:0001/ssr0000000008000000040090000811391e000800000002ff0003000000000000000000000000000000000000000000000000000000000000000000000000000000/sys/bus/mmc/devices/mmc0:0001/scr0205848700000000/sys/bus/mmc/devices/mmc0:0001/nameFD4Q9Random write = 2380 IOPS
Random read = 6723 IOPS
Statistics: Posted by Mikael — Thu Mar 21, 2024 6:41 pm