diff options
Diffstat (limited to 'deps/v8/tools/ignition/linux_perf_report.py')
| -rwxr-xr-x | deps/v8/tools/ignition/linux_perf_report.py | 42 |
1 files changed, 34 insertions, 8 deletions
diff --git a/deps/v8/tools/ignition/linux_perf_report.py b/deps/v8/tools/ignition/linux_perf_report.py index eaf85b3f91..69db37cbae 100755 --- a/deps/v8/tools/ignition/linux_perf_report.py +++ b/deps/v8/tools/ignition/linux_perf_report.py @@ -52,6 +52,8 @@ examples: COMPILER_SYMBOLS_RE = re.compile( r"v8::internal::(?:\(anonymous namespace\)::)?Compile|v8::internal::Parser") +JIT_CODE_SYMBOLS_RE = re.compile( + r"(LazyCompile|Compile|Eval|Script):(\*|~)") def strip_function_parameters(symbol): @@ -70,7 +72,8 @@ def strip_function_parameters(symbol): return symbol[:-pos] -def collapsed_callchains_generator(perf_stream, show_all=False, +def collapsed_callchains_generator(perf_stream, hide_other=False, + hide_compiler=False, hide_jit=False, show_full_signatures=False): current_chain = [] skip_until_end_of_chain = False @@ -85,7 +88,8 @@ def collapsed_callchains_generator(perf_stream, show_all=False, # Empty line signals the end of the callchain. if not line: - if not skip_until_end_of_chain and current_chain and show_all: + if (not skip_until_end_of_chain and current_chain + and not hide_other): current_chain.append("[other]") yield current_chain # Reset parser status. @@ -101,14 +105,26 @@ def collapsed_callchains_generator(perf_stream, show_all=False, symbol = line.split(" ", 1)[1].split("+", 1)[0] if not show_full_signatures: symbol = strip_function_parameters(symbol) + + # Avoid chains of [unknown] + if (symbol == "[unknown]" and current_chain and + current_chain[-1] == "[unknown]"): + continue + current_chain.append(symbol) if symbol.startswith("BytecodeHandler:"): + current_chain.append("[interpreter]") yield current_chain skip_until_end_of_chain = True + elif JIT_CODE_SYMBOLS_RE.match(symbol): + if not hide_jit: + current_chain.append("[jit]") + yield current_chain + skip_until_end_of_chain = True elif symbol == "Stub:CEntryStub" and compiler_symbol_in_chain: - if show_all: - current_chain[-1] = "[compiler]" + if not hide_compiler: + current_chain.append("[compiler]") yield current_chain skip_until_end_of_chain = True elif COMPILER_SYMBOLS_RE.match(symbol): @@ -181,8 +197,18 @@ def parse_command_line(): dest="output_flamegraph" ) command_line_parser.add_argument( - "--show-all", "-a", - help="show samples outside Ignition bytecode handlers", + "--hide-other", + help="Hide other samples", + action="store_true" + ) + command_line_parser.add_argument( + "--hide-compiler", + help="Hide samples during compilation", + action="store_true" + ) + command_line_parser.add_argument( + "--hide-jit", + help="Hide samples from JIT code execution", action="store_true" ) command_line_parser.add_argument( @@ -210,8 +236,8 @@ def main(): stdout=subprocess.PIPE) callchains = collapsed_callchains_generator( - perf.stdout, program_options.show_all, - program_options.show_full_signatures) + perf.stdout, program_options.hide_other, program_options.hide_compiler, + program_options.hide_jit, program_options.show_full_signatures) if program_options.output_flamegraph: write_flamegraph_input_file(program_options.output_stream, callchains) |