Systrace Output Error

匿名 (未验证) 提交于 2019-12-03 08:48:34

问题:

I ran systrace on my android studio project in order to find some performance bugs but after the end of the tracing process, i get the following error and if i open the trace.html output file in chrome, the trace view is empty:

Starting tracing (10 seconds) Tracing completed. Collecting output... Exception in thread Thread-13: Traceback (most recent call last):   File "C:\Python27\lib\threading.py", line 801, in __bootstrap_inner     self.run()   File "C:\Python27\lib\threading.py", line 754, in run     self.__target(*self.__args, **self.__kwargs)   File "C:\Users\Steli\AppData\Local\Android\sdk\platform-tools\systrace\catapult\systrace\systrace\tracing_agents\atrace_agent.py", line 194, in _collect_and_preprocess     self._trace_data = self._preprocess_trace_data(trace_data)   File "C:\Users\Steli\AppData\Local\Android\sdk\platform-tools\systrace\catapult\systrace\systrace\tracing_agents\atrace_agent.py", line 272, in _preprocess_trace_data     trace_data = strip_and_decompress_trace(trace_data)   File "C:\Users\Steli\AppData\Local\Android\sdk\platform-tools\systrace\catapult\systrace\systrace\tracing_agents\atrace_agent.py", line 332, in strip_and_decompress_trace     trace_data = zlib.decompress(trace_data) error: Error -5 while decompressing data: incomplete or truncated stream  Outputting Systrace results... Tracing complete, writing results Traceback (most recent call last):   File "systrace.py", line 49, in <module>     sys.exit(run_systrace.main())   File "C:\Users\Steli\AppData\Local\Android\sdk\platform-tools\systrace\catapult\systrace\systrace\run_systrace.py", line 196, in main     main_impl(sys.argv)   File "C:\Users\Steli\AppData\Local\Android\sdk\platform-tools\systrace\catapult\systrace\systrace\run_systrace.py", line 193, in main_impl     controller.OutputSystraceResults(write_json=options.write_json)   File "C:\Users\Steli\AppData\Local\Android\sdk\platform-tools\systrace\catapult\systrace\systrace\systrace_runner.py", line 68, in OutputSystraceResults     self._out_filename)   File "C:\Users\Steli\AppData\Local\Android\sdk\platform-tools\systrace\catapult\systrace\systrace\output_generator.py", line 98, in GenerateHTMLOutput     html_file.write(_ConvertToHtmlString(result.raw_data))   File "C:\Users\Steli\AppData\Local\Android\sdk\platform-tools\systrace\catapult\systrace\systrace\output_generator.py", line 120, in _ConvertToHtmlString     raise ValueError('Invalid trace result format for HTML output') ValueError: Invalid trace result format for HTML output 

Anyone have a solution for this or any advice?

回答1:

Systrace.py has a --no-compress option. Using it should allow the trace to complete without hitting the failing decompression step.

The same problem was occurring on my Windows 10 system and this solved it for me.



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