Continuing the discussion from Uploading to SD as startup vs internal Flash:
We have had a couple of post recently about using SD card, and their performance.
I thought it might be interesting to have a topic where can collect users experiences about different cards and their performance.
please post in this topic information about the cards you are using and their performance:
(please only post this info into this topic, any other discussion about failures/poor performance in a separate topic, to keep this more a 'database topic')
Information to include:
- Manufacture e.g Kingston
- Type of card/name e.g. Micro SDHC
- Class e.g. 4
- Size e.g. 4GB
- SDBenchmark ran ok? : yes/no ... i.e. also report here if it failed.
- Performance (see below) : Read BW/Write BW
to measure performance we need a consistent benchmarks, fortunately @johannes thought of this already... please follow this procedure to ensure we are looking at the same figures!
Benchmark procedure:
important for consistency, do NOT rely on formatting from PC/Mac or manufacturer
- Format the card in Axoloti (prior to 1.0.11)
- Window/Remote
- use arrows to go to SDCard tools
- use arrows to go to Format
- press Enter
(a bug means that the card will be disconnected with a timeout BUT it will still be formatted, so just connect again)
-
Format the card in Axoloti (1.0.11)
- see this post for how to format from a patch
-
Run SD benchmark
- create a new patch
- add wave/sdbenchmark
- go live
- console will display benchmarks for various buffer sizes
- report here the worst case scenario, which is the last figures reported
(you may want to run a couple of times to check you get consistent results) - (you may then want to reformat the card for use, since the benchmark leaves a couple of files behind)
