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Slow MPC board?
- From: "Daniel Lidsten" <Daniel dot Lidsten at combitechsystems dot com>
- To: "eCos Discussion" <ecos-discuss at sources dot redhat dot com>
- Date: Tue, 26 Aug 2003 16:16:20 +0200
- Subject: [ECOS] Slow MPC board?
Hi,
I think that my board is quite slow but i cannot find why. When i look
in the user manual/realtime characterization for the Cogent CMA MPC860
33Mhz then i find it much faster then my MPC823e 50Mhz. The cogent board
handles a clock interrupt in 14 us, i do it in 50us. A thread switch
takes 7.5us on the cogent board and 14us on my board.
The above big difference goes through all measurements - my board is
clocked faster then the cogent board but have half the performance. I
have the caches (both I and D) enabled.
Ideas? Can it be any configuration issue?
Regards, Daniel Lidsten
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