Message

Reply | Reply all

Date Prev | Date Next | Thread Prev | Thread Next Date Index | Thread Index

From: "zhustudio" <zhustudio@i...>
Date: Wed, 18 Jun 2003 18:9:11 +0800
Subject: [openrisc] about mips of or1200

hi,

i have found that the mips of or1200 is to low.
Assuming the ording instructions, the or1200's mips is 2 times slow to
the system clock. (WISHBONE bus run 2_divide sys_clk)
And with cache, the simulation tell me that it is only 8-10 times slow
to system clock. 
I have run the test under orp_soc/sw. so i think the buttleneck of it is the width of WISHBONE bus.
dose anyone try to enchance the performance?

Jiahui Zhu

Email: zhustudio@i...
Date: 2003-06-18