I am running petalinux from sd card. And trying to find data copying rate from Sd card and from QSPI flash that is there on the Xilinx Zynq board.
As suggested here , I am doing like this:
root@Xilinx-ZC702-14_7:/dev# echo 1 > /proc/sys/vm/drop_caches root@Xilinx-ZC702-14_7:/dev# dd if=/dev/mtd2 of=/dev/null bs=128k count=200 84+0 records in 84+0 records out
But as per the above link it should also print the following lines:
26214400 bytes (25.0MB) copied, 5.971374 seconds, 4.2MB/s
That gives an idea of rate at which flash working.
Why is this line missing in my case? Is there any alterantive to know this rate ?