Quoting Erik Josefsson (2019-06-21 09:28:38) > On 6/19/19 3:38 AM, David Christensen wrote: >> The best way to answer your question regarding performance of a size >> N SD card vs. a size 2*N SD card is to buy two cards and benchmark >> them using your workload. Please publish your findings. > > Please find my four (4) findings below or at > http://paste.debian.net/1088723 > > The only benchmark I know how to use is flashbench. But unfortunately > I don't know how to interpret the resulting data.
flashbench is for benchmarking page/erase-blocks/allocation-group (not transfer speed). My tool to generate images supports custom-aligned since April 28: https://salsa.debian.org/tinker-team/box/commit/be07a3a1b0 Above git commit includes links to some notes on the topic: https://wiki.gentoo.org/wiki/SDCard#Solution_2:_Tuned_ext4 https://thelastmaimou.wordpress.com/2013/05/04/magic-soup-ext4-with-ssd-stripes-and-strides/ https://lists.linaro.org/pipermail/flashbench-results/2014-July/000479.html - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
signature.asc
Description: signature
