This is the mail archive of the
ecos-discuss@sources.redhat.com
mailing list for the eCos project.
Performance problem mpc8xx
- From: Daniel dot Andersson at combitechsystems dot com
- To: ecos-discuss at sources dot redhat dot com
- Date: Fri, 17 May 2002 09:50:24 +0200
- Subject: [ECOS] Performance problem mpc8xx
Hi,
I am having some performance problem on my MPC850 board. When i setup a very
small main that only executes like 100 asm instruction then it takes around
6-7 times the teoretically time. My first thought was that the caches wasnt
turned on but when i turned them off - before my short loop - as a test,
then i got a further decrease of performance (3.5 times).
Does anybody have any ideas of what maight be wrong here?
/Daniel
--
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss