Are there any SD Card diagnostic utility programs out there for Ubuntu? I would like to run tests on my SD card to check capacity, write speed etc. I have one for windows but I am looking for a Linux flavor and hope to find some source code.
Click on the disk you want information from, to test it click on
To start benchmark, select
dd will fill up all the space. Remove the testfile afterwards.
For Ubuntu 13.04 and later...
From the dash
From the command line
Select the disk you wish to test. Find the menu in the top left and select Benchmark...
A window will appear. Click Start Benchmark... to see:
I left the defaults and clicked Start Benchmarking.... It will run for a while, building the chart over time. You can see that my new SD card's read rate is around 7 MB/s, while the write rate is only slightly over 2 MB/s.
The model shown here is a SanDisk Ultra SDXC with an advertised speed of up to 30 MB/s. As you can see, the transfer rate is not as advertised.