hayodea
1d64ce0c7e
We use io_uring_register_buffers() for IoUringAssemblyEngine instead of using mlock(). This __appears__ to have reduced CPU utilization on the Dell laptop. Could also be that we recently upgraded total RAM from 8GiB to 32GiB.
74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
#ifndef _STIMULUS_BUFFER_H
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#define _STIMULUS_BUFFER_H
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#include <config.h>
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#include <vector>
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#include <memory>
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#include <user/spMcRingBuffer.h>
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#include <user/stagingBuffer.h>
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#include <user/frameAssemblyDesc.h>
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#include <user/senseApiDesc.h>
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#include "stimulusFrame.h"
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#include "deviceAttachmentSpec.h"
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#define CL_TARGET_OPENCL_VERSION 120
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#include <CL/cl.h>
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namespace smo {
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namespace stim_buff {
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// Forward declaration
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class StimulusProducer;
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/**
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* StimulusBuffer manages a collection of stimulus frames and ring buffer.
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*
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* This buffer holds the actual frame storage and ring buffer for stimulus
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* data. It maintains a reference to its parent StimulusProducer.
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*/
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class StimulusBuffer
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{
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public:
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explicit StimulusBuffer(
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StimulusProducer& parent,
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const std::shared_ptr<device::DeviceAttachmentSpec>
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&deviceAttachmentSpec,
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int histbuffMs,
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const StagingBuffer::IOEngineConstraints& inputEngineConstraints,
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const StagingBuffer::IOEngineConstraints& outputEngineConstraints,
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const SmoCallbacks& callbacks,
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cl_mem_flags flags)
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: parent(parent),
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deviceAttachmentSpec(deviceAttachmentSpec),
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histbuffMs(histbuffMs),
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stagingBuffer(
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inputEngineConstraints,
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outputEngineConstraints,
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static_cast<size_t>(histbuffMs / CONFIG_STIMBUFF_FRAME_PERIOD_MS)),
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stagingBufferPinner(stagingBuffer.makeMlockPinner()),
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ringBuffer(
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static_cast<std::shared_ptr<FrameAssemblyDesc>>(stagingBuffer),
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callbacks, flags)
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{}
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virtual ~StimulusBuffer() = default;
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// Non-copyable, non-movable: pinner lifetime is tied to this instance
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StimulusBuffer(const StimulusBuffer&) = delete;
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StimulusBuffer& operator=(const StimulusBuffer&) = delete;
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StimulusBuffer(StimulusBuffer&&) = delete;
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StimulusBuffer& operator=(StimulusBuffer&&) = delete;
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public:
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StimulusProducer& parent;
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std::shared_ptr<device::DeviceAttachmentSpec> deviceAttachmentSpec;
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int histbuffMs;
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StagingBuffer stagingBuffer;
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std::unique_ptr<StagingBuffer::MlockPinner> stagingBufferPinner;
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SpMcRingBuffer ringBuffer;
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};
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} // namespace stim_buff
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} // namespace smo
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#endif // _STIMULUS_BUFFER_H
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