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53 lines
2.1 KiB
C++
53 lines
2.1 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 Lee Clagett <https://github.com/vtnerd>
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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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#include "base/kernel/Platform.h"
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#include "backend/cpu/platform/HwlocCpuInfo.h"
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#include "backend/cpu/Cpu.h"
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#include <hwloc.h>
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#include <thread>
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bool xmrig::Platform::setThreadAffinity(uint64_t cpu_id)
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{
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auto cpu = static_cast<HwlocCpuInfo *>(Cpu::info());
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hwloc_obj_t pu = hwloc_get_pu_obj_by_os_index(cpu->topology(), static_cast<unsigned>(cpu_id));
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if (pu == nullptr) {
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return false;
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}
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if (hwloc_set_cpubind(cpu->topology(), pu->cpuset, HWLOC_CPUBIND_THREAD | HWLOC_CPUBIND_STRICT) >= 0) {
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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return true;
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}
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const bool result = (hwloc_set_cpubind(cpu->topology(), pu->cpuset, HWLOC_CPUBIND_THREAD) >= 0);
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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return result;
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}
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