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LimeSDR: reduced LimeSDR stream FIFO size to 256k to improve latency

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f4exb 2022-08-19 06:35:45 +02:00
parent 52e20382c0
commit 044af0d06d
3 changed files with 4 additions and 4 deletions
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4
plugins/samplemimo/limesdrmimo/limesdrmimo.cpp
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@ -181,7 +181,7 @@ bool LimeSDRMIMO::setupRxStream(unsigned int channel)
// set up the stream // set up the stream
m_rxStreams[channel].channel = channel | LMS_ALIGN_CH_PHASE; // channel number m_rxStreams[channel].channel = channel | LMS_ALIGN_CH_PHASE; // channel number
m_rxStreams[channel].fifoSize = 10 * 1024 * 1024; // fifo size in samples (SR / 10 take ~5MS/s) m_rxStreams[channel].fifoSize = 1024 * 256; // fifo size in samples
m_rxStreams[channel].throughputVsLatency = 0.5; // optimize for min latency m_rxStreams[channel].throughputVsLatency = 0.5; // optimize for min latency
m_rxStreams[channel].isTx = false; // RX channel m_rxStreams[channel].isTx = false; // RX channel
m_rxStreams[channel].dataFmt = lms_stream_t::LMS_FMT_I12; // 12-bit integers m_rxStreams[channel].dataFmt = lms_stream_t::LMS_FMT_I12; // 12-bit integers
@ -220,7 +220,7 @@ bool LimeSDRMIMO::setupTxStream(unsigned int channel)
// set up the stream // set up the stream
m_txStreams[channel].channel = channel | LMS_ALIGN_CH_PHASE; // channel number m_txStreams[channel].channel = channel | LMS_ALIGN_CH_PHASE; // channel number
m_txStreams[channel].fifoSize = 1024 * 1024; // fifo size in samples (SR / 10 take ~5MS/s) m_txStreams[channel].fifoSize = 1024 * 256; // fifo size in samples
m_txStreams[channel].throughputVsLatency = 0.5; // optimize for min latency m_txStreams[channel].throughputVsLatency = 0.5; // optimize for min latency
m_txStreams[channel].isTx = true; // TX channel m_txStreams[channel].isTx = true; // TX channel
m_txStreams[channel].dataFmt = lms_stream_t::LMS_FMT_I12; // 12-bit integers m_txStreams[channel].dataFmt = lms_stream_t::LMS_FMT_I12; // 12-bit integers

2
plugins/samplesink/limesdroutput/limesdroutput.cpp
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@ -312,7 +312,7 @@ bool LimeSDROutput::acquireChannel()
// set up the stream // set up the stream
m_streamId.channel = m_deviceShared.m_channel; // channel number m_streamId.channel = m_deviceShared.m_channel; // channel number
m_streamId.fifoSize = 1024 * 1024; // fifo size in samples (SR / 10 take ~5MS/s) m_streamId.fifoSize = 1024 * 256; // fifo size in samples
m_streamId.throughputVsLatency = 0.5; // optimize for min latency m_streamId.throughputVsLatency = 0.5; // optimize for min latency
m_streamId.isTx = true; // TX channel m_streamId.isTx = true; // TX channel
m_streamId.dataFmt = lms_stream_t::LMS_FMT_I12; // 12-bit integers m_streamId.dataFmt = lms_stream_t::LMS_FMT_I12; // 12-bit integers

2
plugins/samplesource/limesdrinput/limesdrinput.cpp
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@ -338,7 +338,7 @@ bool LimeSDRInput::acquireChannel()
// set up the stream // set up the stream
m_streamId.channel = m_deviceShared.m_channel; // channel number m_streamId.channel = m_deviceShared.m_channel; // channel number
m_streamId.fifoSize = 1024 * 1024; // fifo size in samples (SR / 10 take ~5MS/s) m_streamId.fifoSize = 1024 * 256; // fifo size in samples
m_streamId.throughputVsLatency = 0.5; // optimize for min latency m_streamId.throughputVsLatency = 0.5; // optimize for min latency
m_streamId.isTx = false; // RX channel m_streamId.isTx = false; // RX channel
m_streamId.dataFmt = lms_stream_t::LMS_FMT_I12; // 12-bit integers m_streamId.dataFmt = lms_stream_t::LMS_FMT_I12; // 12-bit integers