View Single Post
misterc's Avatar
Posts: 1,625 | Thanked: 998 times | Joined on Aug 2010
#7
Originally Posted by freemangordon View Post
And how is the speed? Any hard values?
Code:
~ $ dd if=/dev/zero of=/media/mmc1/test_1000mb_400k5 bs=400k count=250
250+0 records in
250+0 records out
102400000 bytes (97.7MB) copied, 9.435333 seconds, 10.3MB/s
~ $ sync
couple remarks
  • this is done with a 32GB c10 card which on a PC with a USB3 connection writes at up to 20MB/s
    thus the card's performance are not the bottleneck
  • the value given at the end of the dd command is fantasist at best; need to issue the sync command & use an external stopwatch.
need to free up a couple more mSDHC cards (16GB c6 & 8GB c10) and repeat the test with them.
actual write speed waries between 3 & 6 MB/s
__________________
information is a necessary though no sufficient condition to rationality...
 

The Following 2 Users Say Thank You to misterc For This Useful Post: