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authormichael-west <michael.west@ettus.com>2018-01-09 16:32:11 -0800
committerMartin Braun <martin.braun@ettus.com>2018-01-16 09:51:15 -0800
commitb8ae1286ad709bb609e0efc37039b3a3cacc6e9d (patch)
treef2664f643b4683c089fea4dc0cbaa00f1558a29d /host/lib/usrp/device3
parent12b7a75dc161469400cbfcb3be5c282888d0eef1 (diff)
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X300: Reduce CPU usage during TX by restoring timeout when getting flow control packets
Diffstat (limited to 'host/lib/usrp/device3')
-rw-r--r--host/lib/usrp/device3/device3_io_impl.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/host/lib/usrp/device3/device3_io_impl.cpp b/host/lib/usrp/device3/device3_io_impl.cpp
index 5646d9b9c..024fe3fbb 100644
--- a/host/lib/usrp/device3/device3_io_impl.cpp
+++ b/host/lib/usrp/device3/device3_io_impl.cpp
@@ -342,9 +342,7 @@ static bool tx_flow_ctrl(
}
// Look for a flow control message to update the space available in the buffer.
- // A minimal timeout is used because larger timeouts can cause the thread to be
- // scheduled out for too long at high data rates and result in underruns.
- managed_recv_buffer::sptr buff = async_xport->get_recv_buff(0.000001);
+ managed_recv_buffer::sptr buff = async_xport->get_recv_buff();
if (buff)
{
vrt::if_packet_info_t if_packet_info;