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bd90e57516
Split module-utils into smaller components for better dependency management. Fix many dependencies throughout the project. Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
// Copyright (c) 2017-2020, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#include <SystemManager/CpuStatistics.hpp>
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#include <log/log.hpp>
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#include <FreeRTOS.h>
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#include <task.h>
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#include <limits>
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namespace sys
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{
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void CpuStatistics::Update()
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{
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uint32_t idleTickCount = xTaskGetIdleRunTimeCounter();
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uint32_t totalTickCount = ulHighFrequencyTimerTicks();
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uint32_t idleTickIncrease = ComputeIncrease(idleTickCount, lastIdleTickCount);
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uint32_t totalTickIncrease = ComputeIncrease(totalTickCount, lastTotalTickCount);
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if (totalTickIncrease) {
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cpuLoad = 100 - ((idleTickIncrease * 100) / totalTickIncrease);
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}
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else {
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cpuLoad = 0;
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}
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lastIdleTickCount = idleTickCount;
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lastTotalTickCount = totalTickCount;
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}
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uint32_t CpuStatistics::GetPercentageCpuLoad() const noexcept
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{
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return cpuLoad;
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}
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uint32_t CpuStatistics::ComputeIncrease(uint32_t currentCount, uint32_t lastCount) const
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{
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if (currentCount >= lastCount) {
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return currentCount - lastCount;
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}
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else {
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return std::numeric_limits<uint32_t>::max() - lastCount + currentCount;
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}
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}
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} // namespace sys
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