Systrace: Invalid trace result format for HTML output

Question

When I run python systrace.py --time = 10 -o mynewtrace.html gfx the
following error occurred:

Starting tracing (10 seconds)
Tracing completed. Collecting output...
<br>

Exception in Thread-11 thread:

Traceback (most recent call last):
  File "C:\Python27\lib\threading.py", line 801, in __bootstrap_inner
    self.run()<br>
  File "C:\Python27\lib\threading.py", line 754, in run
    self.__target(*self.__args, self.__kwargs)<br>
  File "C:\Users\rajnish.r\AppData\Local\Android\Sdk\platform-tools\systrace\cat
apult\systrace\systrace\tracing_agents\atrace_agent.py", line 194, in _collect_a
nd_preprocess
    self._trace_data = self._preprocess_trace_data(trace_data)<br>
  File "C:\Users\rajnish.r\AppData\Local\Android\Sdk\platform-tools\systrace\cat
apult\systrace\systrace\tracing_agents\atrace_agent.py", line 272, in _preproces
s_trace_data
    trace_data = strip_and_decompress_trace(trace_data)<br>
  File "C:\Users\rajnish.r\AppData\Local\Android\Sdk\platform-tools\systrace\cat
apult\systrace\systrace\tracing_agents\atrace_agent.py", line 332, in strip_and_
decompress_trace
    **trace_data = zlib.decompress(trace_data)**

Error: Error -5 when unpacking data: incomplete or truncated stream

Outputting Systrace results...<br>
Tracing complete, writing results<br>
Traceback (most recent call last):,br>
  File "systrace.py", line 49, in <module>
    sys.exit(run_systrace.main())<br>
  File "C:\Users\rajnish.r\AppData\Local\Android\Sdk\platform-tools\systrace\cat
apult\systrace\systrace\run_systrace.py", line 196, in main
    main_impl(sys.argv)<br>
  File "C:\Users\rajnish.r\AppData\Local\Android\Sdk\platform-tools\systrace\cat
apult\systrace\systrace\run_systrace.py", line 193, in main_impl
    controller.OutputSystraceResults(write_json=options.write_json)<br>
  File "C:\Users\rajnish.r\AppData\Local\Android\Sdk\platform-tools\systrace\cat
apult\systrace\systrace\systrace_runner.py", line 68, in OutputSystraceResults
    self._out_filename)<br>
  File "C:\Users\rajnish.r\AppData\Local\Android\Sdk\platform-tools\systrace\cat
apult\systrace\systrace\output_generator.py", line 98, in GenerateHTMLOutput
    html_file.write(_ConvertToHtmlString(result.raw_data))<br>
  File "C:\Users\rajnish.r\AppData\Local\Android\Sdk\platform-tools\systrace\cat
apult\systrace\systrace\output_generator.py", line 120, in _ConvertToHtmlString
    raise ValueError('Invalid trace result format for HTML output')<br>
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ValueError: invalid trace result format for HTML output

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Answer 1

I was able to log in to systrace only with Android Device Monitor. The console did not work for me.

Answer 2

You need to use the option --no-compress. Like this:

systrace.py --time=10 --no-compress -o=trace.html sched gfx view -a com.yourapp.Name