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Message
From: Matjaz Breskvar<phoenix@o...>
Date: Mon Dec 20 23:18:45 CET 2004
Subject: [openrisc] OpenRisc Benchmarking
* zhang_lsv@y... (zhang_lsv@y...) wrote:
> I borrowed the Makefile from the testbench in the 'sim' package. It
> seems not using O2 option there. Now I added -O3, and the number of
> cycles has decreased to 7 Million, which is still 8-9 times larger than
> others. Do any other options I can play with ?
>
> In addition to the number of cycles, how can I know the "number of
> total instructions" so that I can compute "IPC"?
try also -fomit-frame-pointer and be sure configure memory delays to 0
in the sim.cfg.
the code you have looks simple enough so i'd investigate the assembler
to chack for hardware muls and the the code seams reasonable...
regards,
p.
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