mattmiller wrote:Is there someone out there who says
Yes - I used to use card X and now I use card Y and my whole pi is significantly faster to use (in terms of things like editing files) or my specific program is significanlty faster
Yup me. I subscribe to fruitoftheloom
school of thought that an SDcard with leading random small file IO is worth the effort. For sure for me significantly improves boot speed, application loading speed and even web browsing speed.
DougieLawson wrote:Move your root filesystem to a chromium plated spinning thing with a flying head and you won't have to care about SDCard size or performance ever again.
IMHO I am not convinced. Haven't moved my root filesystem since I retired my PiB to the museum so don't have numbers but:
1) My Evo+ 64GB benchmarks 33.48/11.3/10.34/3.23 (as per fruitoftheloom tables and methods - in the same ballpark as his 32GB)
My WD Scorpio via SATA/USB link gets 35.03/37.0/0.52/1,68 (ditto)
OK so the magnetic option slaughters the SDcard in sequential file writes but is murdered by the SDcard in small file random reads. Which is why my / stays on my SDcard.
2) Pis are pretty restricted on IO channels. I figure using the MMC channel (which seems to me to have little apologise for on a Pi3 when done optimally compared to an HDD via USB) makes sense rather than adding to the potential USB bottleneck (either via direct connect or ETH).