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Re: how to implement EDF scheduling in eCos
- From: Nodir Kodirov <nodir dot qodirov at gmail dot com>
- To: ecos-discuss at ecos dot sourceware dot org
- Date: Fri, 8 Jan 2010 17:35:27 +0900
- Subject: [ECOS] Re: how to implement EDF scheduling in eCos
Hello all,
I am going to implement EDF (Earliest Deadline First) scheduling
algorithm in eCos. I had a survey of mailing list and I found very
useful tips?here
http://sourceware.org/ml/ecos-discuss/2005-10/msg00209.html and here
http://sourceware.org/ml/ecos-discuss/2005-11/msg00059.html.?However,
I did not find any evidence about successful completion of
implementation.
My approach is adding two more additional fields to thread's
properties. Those are:
cyg_tick_count_t wcet /*worst case execution time*/
cyg_tick_count_t deadline /* absolute deadline thread to be finished */
Currently, I don't need TCP/IP and I don't use POSIX. It has been 5
years, since these question was aroused. So, my question to those
people who has already tried implementation is: do you see any errors
in my approach?
Regards,
Nodir.
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