I got new SD card claimed to be 10 class of speed, but internal Disk utility in linux after test showed up only 6th class of speed. How can I check my card reader speed to be sure that it's not the limit of the device, but the limit of a card?
I don't have any approved SD cards to perform tests with them.
My card reader shows like this in lspci:
0000:07:00.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05) 0000:07:00.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22) 0000:07:00.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12) 0000:07:00.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)