Øyvind Harboe wrote: > On Fri, May 8, 2009 at 9:40 AM, Zach Welch <z...@superlucidity.net> wrote: > >> On Fri, 2009-05-08 at 09:33 +0200, Øyvind Harboe wrote: >> [snip] >> >>> I have to give a bit of thought on how to best to profile this, i.e. to >>> find the precise location of the culprit. >>> >>> Any ideas? >>> >> I have had success with oprofile. This would give you what you need. >> > > We effectively need to know the *stack trace* for those jtag_execute_queue()'s > that are just sitting there waiting for the driver to complete. > > You are wasting your time, I did some work on the STM32 flash performance problems a few weeks ago, and improved write speed from 5kB/s to 15kB/s or more, and the only real big difference was removing extra jtag_execute_queue() calls, and thus avoiding the USB roundtrip delay.
The numbers for ARM7 targets are worse for single stepping here the new code is less than half the speed of the old one. _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
