[En-Nut-Discussion] Preview Fix 060626

[Michael Jones]

Something else that is strange...

The measurement for the following is a sequence of data that is sent via
uart to the board (no events used, full assembler and fully field tested)
and then is sent to a host via TCP/IP. The throughput is displayed and
validated on the host. 

Now, when I send a lot of ARP or Random packets at the board the old and the
new version behave quite differently...

With the old version (Henrik's and my patches) there are actually hardly any
signs that the board is being flooded with messages besides a minor 5%-10%
drop in throughput. Whereas the new implementation completely breaks
together till no TCP/IP packets are actually handled. Yet it immediately
recovers when the packet flooding stops.

My suspicion is that the thread priority handling has somehow changed as
e.g. the main thread shows no signs of slowing down.



Cu,
Michael

-----Original Message-----
From: en-nut-discussion-bounces at egnite.de
[mailto:en-nut-discussion-bounces at egnite.de] On Behalf Of Harald Kipp
Sent: Monday, June 26, 2006 8:44 PM
To: Ethernut User Chat (English)
Subject: [En-Nut-Discussion] Preview Fix 060626

My version of a fix
ethernut-fix060626.zip
is available at
http://www.ethernut.de/arc/

It contains a number of files to be replaced by 4.1.5 or
later or CVS HEAD.

It should solve the disappearing thread issue, the timers-
eating-all-memory issue and it should further reduce critical
sections.

Please try this with one or two applications and let me know
any problems.

Harald

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