# HG changeset patch # User Mychaela Falconia # Date 1582580653 0 # Node ID c847d742ab38a8d7381135c975d981167f5b996a # Parent 98474043ecdd4f6de46a7808c75f5666bd296b93 doc/Loadtools-performance: article started diff -r 98474043ecdd -r c847d742ab38 doc/Loadtools-performance --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/doc/Loadtools-performance Mon Feb 24 21:44:13 2020 +0000 @@ -0,0 +1,21 @@ +Here are the expected run times for the flash dump2bin operation of dumping the +entire flash content of a Calypso GSM device: + +Dump of 4 MiB flash (e.g., Openmoko GTA01/02 or Mot C139/140) at 115200 baud: +12m53s + +The same 4 MiB flash dump at 812500 baud: 1m50s + +Dump of 8 MiB flash (e.g., Mot C155/156) at 812500 baud: 3m40s + +Because of the architecture of fc-loadtool and its loadagent back-end, the run +time of a flash dump operation depends only on the serial baud rate and the +size of the flash area to be dumped; it should not depend on the USB-serial +adapter type or any host system properties, as long as the host system and +serial adapter combination supports the desired baud rate. In contrast, flash +programming and fc-xram loading operations are quite different in that their +run times do depend on the host system and USB-serial adapter or other serial +port hardware - this host system dependency exists because of the way these +operations are implemented in our architecture. + +[To be continued]