VNC: More updates from testing. There are issues with high rate, large TCP transfers.

configs/samv71-xult/vnc/defconfig

@@ -725,12 +725,7 @@ CONFIG_UART3_2STOP=0
 #
 # System Logging
 #
-CONFIG_RAMLOG=y
-CONFIG_RAMLOG_SYSLOG=y
-# CONFIG_RAMLOG_CONSOLE is not set
-CONFIG_RAMLOG_BUFSIZE=1024
-# CONFIG_RAMLOG_CRLF is not set
-CONFIG_RAMLOG_NONBLOCKING=y
+# CONFIG_RAMLOG is not set
 # CONFIG_SYSLOG_CONSOLE is not set
 
 #
@@ -746,8 +741,8 @@ CONFIG_NET_NOINTS=y
 # Driver buffer configuration
 #
 # CONFIG_NET_MULTIBUFFER is not set
-CONFIG_NET_ETH_MTU=590
-CONFIG_NET_ETH_TCP_RECVWNDO=536
+CONFIG_NET_ETH_MTU=1508
+CONFIG_NET_ETH_TCP_RECVWNDO=1454
 CONFIG_NET_GUARDSIZE=2
 
 #
@@ -834,7 +829,7 @@ CONFIG_ARP_SEND_DELAYMSEC=20
 # Network I/O Buffer Support
 #
 CONFIG_NET_IOB=y
-CONFIG_IOB_NBUFFERS=36
+CONFIG_IOB_NBUFFERS=72
 CONFIG_IOB_BUFSIZE=196
 CONFIG_IOB_NCHAINS=8
 CONFIG_IOB_THROTTLE=8
@@ -897,9 +892,8 @@ CONFIG_FS_PROCFS=y
 #
 # System Logging
 #
-CONFIG_SYSLOG=y
+# CONFIG_SYSLOG is not set
 # CONFIG_SYSLOG_TIMESTAMP is not set
-# CONFIG_SYSLOG_CHAR is not set
 
 #
 # Graphics Support
@@ -1003,7 +997,7 @@ CONFIG_VNCSERVER_COLORFMT_RGB16=y
 CONFIG_VNCSERVER_SCREENWIDTH=320
 CONFIG_VNCSERVER_SCREENHEIGHT=240
 CONFIG_VNCSERVER_NUPDATES=48
-CONFIG_VNCSERVER_UPDATE_BUFSIZE=4096
+CONFIG_VNCSERVER_UPDATE_BUFSIZE=1024
 CONFIG_VNCSERVER_INBUFFER_SIZE=80
 # CONFIG_VNCCLIENT is not set