Hello,
I have some trouble using the UHD 4.1.0.2 library. I am using RFNOC blocks
RADIO and DDC, and setting up an RX stream using graph->create_rx_streamer. The
receiver loop is running in its own thread doing something like this
(simplified):
uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_MORE);
stream_cmd.num_samps = size_t(sampsPerBuff);
stream_cmd.stream_now = true;
stream_cmd.time_spec = uhd::time_spec_t();
for (;;) {
rx_stream->issue_stream_cmd(stream_cmd);
rx_stream->recv(&buffer.front(), sampsPerBuff, md, 3.0, false);
std::this_thread::sleep_for(std::chrono::milliseconds(2));
}
I am developing for an E310 sg3.
When calling issue_stream_cmd repeatedly this way memory usage goes up until
resources are depleted (few hours). If stream_cmd is replaced with
STREAM_MODE_START_CONTINUOUS and called just once memory usage is normal. But
for the application developed the mode NUM_SAMPS_AND_MORE is better suited. It
is also what we used with the 3.14.1 library, without any memory problems like
this.
Any tips?
BR
Jorn
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