jeffreytan81 wrote: And just for fun, here is an extreme one with 18 seconds of sampling time, 99.6% time is from this hot path. Note: they are all from linux machines because we only enable perf sampling by default for linux platform so we have no Mac data.
``` # time of first sample : 2646936.334980 # time of last sample : 2646954.518041 # sample duration : 18183.061 ms 99.63% 0.00% lldb-dap lldb-dap [.] main | ---main lldb_dap::DAP::Loop() lldb_dap::DAP::HandleObject(llvm::json::Object const&) (anonymous namespace)::request_stackTrace(llvm::json::Object const&) | --99.60%--lldb::SBThread::GetCurrentExceptionBacktrace() lldb_private::Thread::GetCurrentExceptionBacktrace() lldb_private::Thread::GetCurrentException() lldb_private::ItaniumABILanguageRuntime::GetExceptionObjectForThread(std::shared_ptr<lldb_private::Thread>) | --99.60%--lldb_private::FunctionCaller::ExecuteFunction(lldb_private::ExecutionContext&, unsigned long*, lldb_private::EvaluateExpressionOptions const&, lldb_private::DiagnosticManager&, lldb_private::Value&) | |--44.33%--lldb_private::ClangFunctionCaller::CompileFunction(std::shared_ptr<lldb_private::Thread>, lldb_private::DiagnosticManager&) | | | |--39.56%--lldb_private::ClangExpressionParser::ParseInternal(lldb_private::DiagnosticManager&, clang::CodeCompleteConsumer*, unsigned int, unsigned int) | | | | | |--21.86%--clang::ParseAST(clang::Sema&, bool, bool) | | | | | | | |--17.47%--clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) | | | | clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) | | | | clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) | | | | clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) | | | | clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, ... ``` https://github.com/llvm/llvm-project/pull/104874 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits