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src: split profiling helpers from util #63008
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Merged
nodejs-github-bot
merged 1 commit into
nodejs:main
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IlyasShabi:ishabi/profiling-utils
May 1, 2026
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| // Copyright Joyent, Inc. and other Node contributors. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a | ||
| // copy of this software and associated documentation files (the | ||
| // "Software"), to deal in the Software without restriction, including | ||
| // without limitation the rights to use, copy, modify, merge, publish, | ||
| // distribute, sublicense, and/or sell copies of the Software, and to permit | ||
| // persons to whom the Software is furnished to do so, subject to the | ||
| // following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included | ||
| // in all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | ||
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
| // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN | ||
| // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, | ||
| // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | ||
| // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | ||
| // USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
|
|
||
| #include "node_profiling.h" | ||
|
|
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| #include "json_utils.h" | ||
| #include "util.h" | ||
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| #include <memory> | ||
|
|
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| namespace node { | ||
|
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| using v8::AllocationProfile; | ||
| using v8::HandleScope; | ||
| using v8::HeapProfiler; | ||
| using v8::Isolate; | ||
| using v8::Value; | ||
|
|
||
| static void BuildHeapProfileNode(Isolate* isolate, | ||
| const AllocationProfile::Node* node, | ||
| JSONWriter* writer) { | ||
| size_t selfSize = 0; | ||
| for (const auto& allocation : node->allocations) | ||
| selfSize += allocation.size * allocation.count; | ||
|
|
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| writer->json_keyvalue("selfSize", selfSize); | ||
| writer->json_keyvalue("id", node->node_id); | ||
| writer->json_objectstart("callFrame"); | ||
| writer->json_keyvalue("scriptId", node->script_id); | ||
| writer->json_keyvalue("lineNumber", node->line_number - 1); | ||
| writer->json_keyvalue("columnNumber", node->column_number - 1); | ||
| Utf8Value name(isolate, node->name); | ||
| Utf8Value script_name(isolate, node->script_name); | ||
| writer->json_keyvalue("functionName", *name); | ||
| writer->json_keyvalue("url", *script_name); | ||
| writer->json_objectend(); | ||
|
|
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| writer->json_arraystart("children"); | ||
| for (const auto* child : node->children) { | ||
| writer->json_start(); | ||
| BuildHeapProfileNode(isolate, child, writer); | ||
| writer->json_end(); | ||
| } | ||
| writer->json_arrayend(); | ||
| } | ||
|
|
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| bool SerializeHeapProfile(Isolate* isolate, std::ostringstream& out_stream) { | ||
| HandleScope scope(isolate); | ||
| HeapProfiler* profiler = isolate->GetHeapProfiler(); | ||
| std::unique_ptr<AllocationProfile> profile(profiler->GetAllocationProfile()); | ||
| if (!profile) { | ||
| return false; | ||
| } | ||
| profiler->StopSamplingHeapProfiler(); | ||
| JSONWriter writer(out_stream, true); | ||
| writer.json_start(); | ||
|
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| writer.json_arraystart("samples"); | ||
| for (const auto& sample : profile->GetSamples()) { | ||
| writer.json_start(); | ||
| writer.json_keyvalue("size", sample.size * sample.count); | ||
| writer.json_keyvalue("nodeId", sample.node_id); | ||
| writer.json_keyvalue("ordinal", static_cast<double>(sample.sample_id)); | ||
| writer.json_end(); | ||
| } | ||
| writer.json_arrayend(); | ||
|
|
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| writer.json_objectstart("head"); | ||
| BuildHeapProfileNode(isolate, profile->GetRootNode(), &writer); | ||
| writer.json_objectend(); | ||
|
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| writer.json_end(); | ||
| return true; | ||
| } | ||
|
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| HeapProfileOptions ParseHeapProfileOptions( | ||
| const v8::FunctionCallbackInfo<Value>& args) { | ||
| HeapProfileOptions options; | ||
| CHECK_LE(args.Length(), 3); | ||
| if (args.Length() > 0) { | ||
| CHECK(args[0]->IsNumber()); | ||
| options.sample_interval = | ||
| static_cast<uint64_t>(args[0].As<v8::Number>()->Value()); | ||
| } | ||
| if (args.Length() > 1) { | ||
| CHECK(args[1]->IsInt32()); | ||
| options.stack_depth = args[1].As<v8::Int32>()->Value(); | ||
| } | ||
| if (args.Length() > 2) { | ||
| CHECK(args[2]->IsUint32()); | ||
| options.flags = static_cast<v8::HeapProfiler::SamplingFlags>( | ||
| args[2].As<v8::Uint32>()->Value()); | ||
| } | ||
| return options; | ||
| } | ||
|
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| CpuProfileOptions ParseCpuProfileOptions( | ||
| const v8::FunctionCallbackInfo<Value>& args) { | ||
| CpuProfileOptions options; | ||
| CHECK_LE(args.Length(), 2); | ||
| if (args.Length() > 0) { | ||
| CHECK(args[0]->IsInt32()); | ||
| options.sampling_interval_us = args[0].As<v8::Int32>()->Value(); | ||
| } | ||
| if (args.Length() > 1) { | ||
| CHECK(args[1]->IsUint32()); | ||
| options.max_samples = args[1].As<v8::Uint32>()->Value(); | ||
| } | ||
| return options; | ||
| } | ||
|
|
||
| } // namespace node |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| // Copyright Joyent, Inc. and other Node contributors. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a | ||
| // copy of this software and associated documentation files (the | ||
| // "Software"), to deal in the Software without restriction, including | ||
| // without limitation the rights to use, copy, modify, merge, publish, | ||
| // distribute, sublicense, and/or sell copies of the Software, and to permit | ||
| // persons to whom the Software is furnished to do so, subject to the | ||
| // following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included | ||
| // in all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | ||
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
| // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN | ||
| // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, | ||
| // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | ||
| // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | ||
| // USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
|
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| #ifndef SRC_NODE_PROFILING_H_ | ||
| #define SRC_NODE_PROFILING_H_ | ||
|
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| #if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS | ||
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| #include "v8-profiler.h" | ||
| #include "v8.h" | ||
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| #include <cstdint> | ||
| #include <sstream> | ||
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| namespace node { | ||
|
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| struct HeapProfileOptions { | ||
| uint64_t sample_interval = 512 * 1024; | ||
| int stack_depth = 16; | ||
| v8::HeapProfiler::SamplingFlags flags = | ||
| v8::HeapProfiler::SamplingFlags::kSamplingNoFlags; | ||
| }; | ||
|
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| HeapProfileOptions ParseHeapProfileOptions( | ||
| const v8::FunctionCallbackInfo<v8::Value>& args); | ||
|
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| bool SerializeHeapProfile(v8::Isolate* isolate, std::ostringstream& out_stream); | ||
|
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| struct CpuProfileOptions { | ||
| int sampling_interval_us = 0; | ||
| uint32_t max_samples = v8::CpuProfilingOptions::kNoSampleLimit; | ||
| }; | ||
|
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| CpuProfileOptions ParseCpuProfileOptions( | ||
| const v8::FunctionCallbackInfo<v8::Value>& args); | ||
|
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| } // namespace node | ||
|
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| #endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS | ||
|
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| #endif // SRC_NODE_PROFILING_H_ | ||
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Is this file header necessary for these new files?
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Shouldn't we add the copyright for new created files?
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@IlyasShabi we do not add license headers for new files. Also I think it is quite dismissive to land the PR while there is an open question
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I merged it after the CI finally passed and didn’t think your comment was blocking.
I see you opened a PR to remove it. Thanks