User:Simon Small/InProgress1

This is a page that I am working on that is not complete, so is not ready for inclusion in the main pages of the wiki

Based on RPi_VerifiedPeripherals and previous RaspberryPiBoardVerifiedPeripherals

Table from User:83a/SD_Cards

Start
There are issues with most Class 10 SDHC cards, apparently due to a bug in the Broadcom bootloader. This seems to have been fixed in sdhci.c: Further feedback will be useful

Note that manufacturers change their designs over time, even as the specs stay the same. For this reason, please specify product numbers / dates in the lists below, when possible.

Other
(from RPi_Performance)

SD card

 * TODO test

'''Note: the dd test should probably use i/oflags=direct for reads and writes. But that will change the results recorded to date'''

Compile/Run
dd if=/dev/zero of=~/test.tmp bs=500K count=1024 dd if=~/test.tmp of=/dev/null bs=500K count=1024 rm ~/test.tmp uname -a
 * 1) write
 * 1) read
 * 1) cleanup
 * 1) find out which kernel you're running

Results

 * Depends on SD card used http://elinux.org/RaspberryPiBoardVerifiedPeripherals#SD_cards