diff options
Diffstat (limited to 'host/lib/transport')
| -rw-r--r-- | host/lib/transport/udp_zero_copy_asio.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/host/lib/transport/udp_zero_copy_asio.cpp b/host/lib/transport/udp_zero_copy_asio.cpp index c3c02707e..7f9292d24 100644 --- a/host/lib/transport/udp_zero_copy_asio.cpp +++ b/host/lib/transport/udp_zero_copy_asio.cpp @@ -27,7 +27,8 @@ using namespace uhd::transport; /*********************************************************************** * Constants **********************************************************************/ -static const size_t MIN_SOCK_BUFF_SIZE = size_t(100e3); +//enough buffering for half a second of samples at full rate on usrp2 +static const size_t MIN_SOCK_BUFF_SIZE = size_t(sizeof(boost::uint32_t) * 25e6 * 0.5); static const size_t MAX_DGRAM_SIZE = 1500; //assume max size on send and recv static const double RECV_TIMEOUT = 0.1; //100 ms @@ -159,6 +160,12 @@ template<typename Opt> static void resize_buff_helper( //otherwise, ensure that the buffer is at least the minimum size else if (udp_trans->get_buff_size<Opt>() < MIN_SOCK_BUFF_SIZE){ resize_buff_helper<Opt>(udp_trans, MIN_SOCK_BUFF_SIZE, name); + if (udp_trans->get_buff_size<Opt>() < MIN_SOCK_BUFF_SIZE){ + std::cerr << boost::format( + "Warning: the %s buffer size is smaller than the recommended size of %d bytes.\n" + " See the USRP2 application notes on buffer resizing." + ) % name % MIN_SOCK_BUFF_SIZE << std::endl; + } } } |