3fbf2ac3d4
- Use only steady timestamp counters to guarantee correctness - CPU backend: directly measure total hashrate using raw hash counters from each thread; update data more often on ARM CPUs because they're slower - GPU backends: directly measure total hashrate too, but use interpolator with 4 second lag to fix variance from batches of hashes Total hashrate is now measured directly (realtime for CPU, 4 seconds lag for GPU), so it might differ a bit from the sum of all thread hashrates because data points are taken at different moments in time. Overhead is reduced a lot since it doesn't have to go through all threads to calculate max total hashrate on every timer tick (2 times a second).
58 lines
1.8 KiB
C++
58 lines
1.8 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 2018-2020 SChernykh <https://github.com/SChernykh>
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* Copyright 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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#ifndef XMRIG_HASHRATE_INTERPOLATOR_H
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#define XMRIG_HASHRATE_INTERPOLATOR_H
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#include <mutex>
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#include <deque>
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#include <utility>
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namespace xmrig {
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class HashrateInterpolator
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{
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public:
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enum {
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LagMS = 4000,
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};
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uint64_t interpolate(uint64_t timeStamp) const;
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void addDataPoint(uint64_t count, uint64_t timeStamp);
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private:
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// Buffer of hashrate counters, used for linear interpolation of past data
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mutable std::mutex m_lock;
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std::deque<std::pair<uint64_t, uint64_t>> m_data;
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};
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} // namespace xmrig
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#endif /* XMRIG_HASHRATE_INTERPOLATOR_H */
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