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| // Licensed to the Apache Software Foundation (ASF) under one | ||
| // or more contributor license agreements. See the NOTICE file | ||
| // distributed with this work for additional information | ||
| // regarding copyright ownership. The ASF licenses this file | ||
| // to you under the Apache License, Version 2.0 (the | ||
| // "License"); you may not use this file except in compliance | ||
| // with the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
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| #include "runtime/memory/heap_profiler.h" | ||
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| #include "agent/utils.h" | ||
| #include "common/config.h" | ||
| #include "io/fs/local_file_system.h" | ||
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| namespace doris { | ||
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| void HeapProfiler::set_prof_active(bool prof) { | ||
| #ifdef USE_JEMALLOC | ||
| std::lock_guard guard(_mutex); | ||
| try { | ||
| int err = jemallctl("prof.active", nullptr, nullptr, &prof, 1); | ||
| err |= jemallctl("prof.thread_active_init", nullptr, nullptr, &prof, 1); | ||
| if (err) { | ||
| LOG(WARNING) << "jemalloc heap profiling start failed, " << err; | ||
| } else { | ||
| LOG(WARNING) << "jemalloc heap profiling started"; | ||
| } | ||
| } catch (...) { | ||
| LOG(WARNING) << "jemalloc heap profiling start failed"; | ||
| } | ||
| #endif | ||
| } | ||
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| bool HeapProfiler::get_prof_dump(const std::string& profile_file_name) { | ||
| #ifdef USE_JEMALLOC | ||
| std::lock_guard guard(_mutex); | ||
| const char* file_name_ptr = profile_file_name.c_str(); | ||
| try { | ||
| int err = jemallctl("prof.dump", nullptr, nullptr, &file_name_ptr, sizeof(const char*)); | ||
| if (err) { | ||
| LOG(WARNING) << "dump heap profile failed, " << err; | ||
| return false; | ||
| } else { | ||
| LOG(INFO) << "dump heap profile to " << profile_file_name; | ||
| return true; | ||
| } | ||
| } catch (...) { | ||
| LOG(WARNING) << "dump heap profile failed"; | ||
| return false; | ||
| } | ||
| #endif | ||
| } | ||
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| static std::string jeprof_profile_to_dot(const std::string& profile_file_name) { | ||
| AgentUtils util; | ||
| const static std::string jeprof_path = fmt::format("{}/bin/jeprof", std::getenv("DORIS_HOME")); | ||
| const static std::string binary_path = | ||
| fmt::format("{}/lib/doris_be", std::getenv("DORIS_HOME")); | ||
| // https://doris.apache.org/community/developer-guide/debug-tool/#3-jeprof-parses-heap-profile | ||
| std::string jeprof_cmd = | ||
| fmt::format("{} --dot {} {}", jeprof_path, binary_path, profile_file_name); | ||
| std::string msg; | ||
| bool rc = util.exec_cmd(jeprof_cmd, &msg); | ||
| if (!rc) { | ||
| LOG(WARNING) << "jeprof profile to dot failed: " << msg; | ||
| } | ||
| return msg; | ||
| } | ||
|
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| void HeapProfiler::heap_profiler_start() { | ||
| set_prof_active(true); | ||
| } | ||
|
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| void HeapProfiler::heap_profiler_stop() { | ||
| set_prof_active(false); | ||
| } | ||
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| bool HeapProfiler::check_heap_profiler() { | ||
| size_t value = 0; | ||
| size_t sz = sizeof(value); | ||
| jemallctl("prof.active", &value, &sz, nullptr, 0); | ||
| return value; | ||
| } | ||
|
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| std::string HeapProfiler::dump_heap_profile() { | ||
| if (!config::jeprofile_dir.empty()) { | ||
| auto st = io::global_local_filesystem()->create_directory(config::jeprofile_dir); | ||
| if (!st.ok()) { | ||
| LOG(WARNING) << "create jeprofile dir failed."; | ||
| return ""; | ||
| } | ||
| } | ||
| std::string profile_file_name = | ||
| fmt::format("{}/jeheap_dump.{}.{}.{}.heap", config::jeprofile_dir, std::time(nullptr), | ||
| getpid(), rand()); | ||
| if (get_prof_dump(profile_file_name)) { | ||
| return profile_file_name; | ||
| } else { | ||
| return ""; | ||
| } | ||
| } | ||
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| std::string HeapProfiler::dump_heap_profile_to_dot() { | ||
| std::string profile_file_name = dump_heap_profile(); | ||
| if (!profile_file_name.empty()) { | ||
| return jeprof_profile_to_dot(profile_file_name); | ||
| } else { | ||
| return ""; | ||
| } | ||
| } | ||
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| } // namespace doris |
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