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103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
/* XMRig
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* Copyright (c) 2018-2020 SChernykh <https://github.com/SChernykh>
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* Copyright (c) 2016-2020 XMRig <https://github.com/xmrig>, <support@xmrig.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "crypto/rx/Profiler.h"
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#include "base/io/log/Log.h"
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#include "base/io/log/Tags.h"
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#include <cstring>
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#include <sstream>
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#include <thread>
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#include <chrono>
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#include <algorithm>
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#ifdef XMRIG_FEATURE_PROFILING
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ProfileScopeData* ProfileScopeData::s_data[MAX_DATA_COUNT] = {};
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volatile long ProfileScopeData::s_dataCount = 0;
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double ProfileScopeData::s_tscSpeed = 0.0;
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#ifndef NOINLINE
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#ifdef __GNUC__
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#define NOINLINE __attribute__ ((noinline))
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#elif _MSC_VER
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#define NOINLINE __declspec(noinline)
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#else
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#define NOINLINE
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#endif
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#endif
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static std::string get_thread_id()
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{
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std::stringstream ss;
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ss << std::this_thread::get_id();
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std::string s = ss.str();
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if (s.length() > ProfileScopeData::MAX_THREAD_ID_LENGTH) {
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s.resize(ProfileScopeData::MAX_THREAD_ID_LENGTH);
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}
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return s;
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}
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NOINLINE void ProfileScopeData::Register(ProfileScopeData* data)
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{
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#ifdef _MSC_VER
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const long id = _InterlockedIncrement(&s_dataCount) - 1;
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#else
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const long id = __sync_fetch_and_add(&s_dataCount, 1);
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#endif
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if (static_cast<unsigned long>(id) < MAX_DATA_COUNT) {
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s_data[id] = data;
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const std::string s = get_thread_id();
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memcpy(data->m_threadId, s.c_str(), s.length() + 1);
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}
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}
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NOINLINE void ProfileScopeData::Init()
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{
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using namespace std::chrono;
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const uint64_t t1 = static_cast<uint64_t>(time_point_cast<nanoseconds>(high_resolution_clock::now()).time_since_epoch().count());
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const uint64_t count1 = ReadTSC();
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for (;;)
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{
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const uint64_t t2 = static_cast<uint64_t>(time_point_cast<nanoseconds>(high_resolution_clock::now()).time_since_epoch().count());
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const uint64_t count2 = ReadTSC();
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if (t2 - t1 > 1000000000) {
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s_tscSpeed = (count2 - count1) * 1e9 / (t2 - t1);
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LOG_INFO("%s TSC speed = %.3f GHz", xmrig::Tags::profiler(), s_tscSpeed / 1e9);
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return;
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}
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}
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}
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#endif /* XMRIG_FEATURE_PROFILING */
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