Lines Matching refs:it
21 which extracts useful information from it. The resulting trace output
29 Sandbox is a build of U-Boot that can run under Linux so it is a convenient
30 way of trying out tracing before you use it on your actual board. To do
106 Finally run pytimechart to display it
137 it doesn't have a proper trace buffer. On many boards
151 This is kept as a separate option so that it is easy to enable/disable
159 When you run U-Boot on your board it will collect trace data up to the
171 best time to stop tracing is right at the end. In practice it is hard
175 that it captures most of the board init process, missing only the
176 early architecture-specific init. However, it also misses the entire
182 data after bootm has finished processing, but just before it jumps to
185 collects the trace data and writes it somewhere.
192 that you mark this timer (and anything it calls) with
194 use it without causing an infinite loop.
260 to transmit it to the host. Notably you can use tftput to send the data
268 a trace log to address 10000000 and sends it to a host machine using
277 here. To convert it into something useful, you can use proftool.
315 2. Build U-Boot with tracing and run it. Note the difference in boot time
316 (it is common for tracing to add 10% to the time)
321 4. Take a look at that code and see if you can optimise it. Perhaps it is