SD and eMMC performance in Nuttx

2023-05-30 Thread Radek Pesina
self - the complexity of which is beyond my current understanding and therefore would greatly appreciate the thoughts and assistance of the experts on this. Perhaps this has already been observed by the OS maintainers and is an item with planned future or current work? Kind Regards, Radek. *Kind r

Re: SD and eMMC performance in Nuttx

2023-05-31 Thread Radek Pesina
at 100KiB/s with a RR interval of 200 and this increases to 135KiB/s with a RR interval of 10ms. Yes I do have access to an oscilloscope and logic analyzer so will endeavour to obtain some traces tomorrow to rule in/out possible unexpected delays and/or noise. *Kind regards,* *Radek Pesina* On

Re: SD and eMMC performance in Nuttx

2023-06-08 Thread Radek Pesina
Hi, I've been busy on other tasks therefore haven't obtained a oscilloscope trace yet, but one of my peers have performed some profiling on a different micro and non-secure core, with the mxrt1064-evk:nsh configuration + tickless and 100us tick rate: nsh> dd if=/dev/zero of=/dev/null bs=4096 coun