mirror of
https://github.com/xmrig/xmrig.git
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177 lines
4.5 KiB
C++
177 lines
4.5 KiB
C++
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2017-2018 XMR-Stak <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
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* Copyright 2018-2019 SChernykh <https://github.com/SChernykh>
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* Copyright 2016-2019 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 <assert.h>
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#include <cmath>
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#include <memory.h>
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#include <stdio.h>
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#include "backend/common/Hashrate.h"
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#include "base/tools/Chrono.h"
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#include "base/tools/Handle.h"
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#include "rapidjson/document.h"
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inline static const char *format(double h, char *buf, size_t size)
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{
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if (std::isnormal(h)) {
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snprintf(buf, size, "%03.1f", h);
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return buf;
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}
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return "n/a";
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}
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xmrig::Hashrate::Hashrate(size_t threads) :
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m_highest(0.0),
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m_threads(threads)
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{
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m_counts = new uint64_t*[threads];
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m_timestamps = new uint64_t*[threads];
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m_top = new uint32_t[threads];
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for (size_t i = 0; i < threads; i++) {
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m_counts[i] = new uint64_t[kBucketSize]();
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m_timestamps[i] = new uint64_t[kBucketSize]();
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m_top[i] = 0;
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}
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}
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xmrig::Hashrate::~Hashrate()
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{
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for (size_t i = 0; i < m_threads; i++) {
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delete [] m_counts[i];
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delete [] m_timestamps[i];
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}
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delete [] m_counts;
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delete [] m_timestamps;
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delete [] m_top;
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}
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double xmrig::Hashrate::calc(size_t ms) const
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{
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double result = 0.0;
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double data;
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for (size_t i = 0; i < m_threads; ++i) {
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data = calc(i, ms);
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if (std::isnormal(data)) {
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result += data;
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}
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}
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return result;
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}
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double xmrig::Hashrate::calc(size_t threadId, size_t ms) const
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{
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assert(threadId < m_threads);
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if (threadId >= m_threads) {
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return nan("");
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}
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uint64_t earliestHashCount = 0;
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uint64_t earliestStamp = 0;
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uint64_t lastestStamp = 0;
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uint64_t lastestHashCnt = 0;
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bool haveFullSet = false;
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for (size_t i = 1; i < kBucketSize; i++) {
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const size_t idx = (m_top[threadId] - i) & kBucketMask;
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if (m_timestamps[threadId][idx] == 0) {
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break;
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}
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if (lastestStamp == 0) {
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lastestStamp = m_timestamps[threadId][idx];
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lastestHashCnt = m_counts[threadId][idx];
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}
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if (xmrig::Chrono::highResolutionMSecs() - m_timestamps[threadId][idx] > ms) {
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haveFullSet = true;
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break;
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}
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earliestStamp = m_timestamps[threadId][idx];
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earliestHashCount = m_counts[threadId][idx];
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}
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if (!haveFullSet || earliestStamp == 0 || lastestStamp == 0) {
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return nan("");
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}
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if (lastestStamp - earliestStamp == 0) {
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return nan("");
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}
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const double hashes = static_cast<double>(lastestHashCnt - earliestHashCount);
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const double time = static_cast<double>(lastestStamp - earliestStamp) / 1000.0;
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return hashes / time;
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}
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void xmrig::Hashrate::add(size_t threadId, uint64_t count, uint64_t timestamp)
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{
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const size_t top = m_top[threadId];
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m_counts[threadId][top] = count;
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m_timestamps[threadId][top] = timestamp;
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m_top[threadId] = (top + 1) & kBucketMask;
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}
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void xmrig::Hashrate::updateHighest()
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{
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double highest = calc(ShortInterval);
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if (std::isnormal(highest) && highest > m_highest) {
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m_highest = highest;
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}
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}
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const char *xmrig::Hashrate::format(double h, char *buf, size_t size)
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{
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return ::format(h, buf, size);
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}
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rapidjson::Value xmrig::Hashrate::normalize(double d)
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{
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using namespace rapidjson;
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if (!std::isnormal(d)) {
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return Value(kNullType);
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}
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return Value(floor(d * 100.0) / 100.0);
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}
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