Update README

This commit is contained in:
Gregory Nutt 2016-04-21 16:15:56 -06:00
parent 1e7b8b80ac
commit ceac1dcaee
2 changed files with 12 additions and 2 deletions

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@ -2328,7 +2328,7 @@ Configuration sub-directories
size of update messages. That is 1024 bytes in that configuration
(the full message with the header will be a little larger). The
MTU (CONFIG_NET_ETH_MTU) is set to 590 so that a full update will
require several packets.i
require several packets.
Write buffering also effects network performance. This will break
up the large updates into small (196 byte) groups. When we run out
@ -2339,3 +2339,13 @@ Configuration sub-directories
mouse/keyboard inputs in the options/input menu. That will make
things a little clearer.
STATUS:
2016-04-21: I have gottent he apps/examples/nximage to work
with lots issues with GRAPHICS and UPDATER debug ON. There
are reliability problems and it hangs at the end of the test.
If I turn UPDATE debug off (only), then the display output is
corrupted and I get a hardfault.
Mostly likely, the UPDATER debug output slows the updates and
avoids some kind of race condition with the networking. Oddly,
it does not work at all if I turn off TCP write buffering.

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@ -832,7 +832,7 @@ CONFIG_NET_IOB=y
CONFIG_IOB_NBUFFERS=72
CONFIG_IOB_BUFSIZE=196
CONFIG_IOB_NCHAINS=8
CONFIG_IOB_THROTTLE=8
CONFIG_IOB_THROTTLE=32
# CONFIG_NET_ARCH_INCR32 is not set
# CONFIG_NET_ARCH_CHKSUM is not set
CONFIG_NET_STATISTICS=y