update readme

2015-04-14 11:11:07 +02:00
parent eaeaece239
commit ec195bed59
1 changed files with 4 additions and 0 deletions
@@ -64,6 +64,10 @@ To actually install the blocks do
    sudo make install
    sudo ldconfig

+### Adjust Maximum Shared Memory
+Since the transmitter is using the Tagged Stream blocks it has to store a complete frame in the buffer before processing it. The default maximum shared memory might not be enough on most Linux systems. It can be increased with
+
+    sudo sysctl -w kernel.shmmax=2147483648

 ### OFDM PHY