[Libre-soc-sim] Progress

lkcl luke.leighton at gmail.com
Fri Aug 13 10:54:21 BST 2021


On Fri, Aug 13, 2021 at 8:28 AM Peter Hsu <peter.hsu at bsc.es> wrote:
>
> Hello Luke, All,
>
> Uspike correctly ran cc1 of Spec CPU2000 gcc (2.6 billion):
>
> peterhsu at DELL-LAPTOP:~/TRY/gcc$ uspike cc1 cccp.i
> rt_sigaction called
> rt_sigaction called
>    1000000000 instructions in 9.032 for 110.7 MIPS record_control_macro

am i reading that correctly, 110 million instructions per second?
or is that part of the...

> peterhsu at DELL-LAPTOP:~/TRY$ time uspike ~/rvbin/xhpcg-ref
> 276854550706 instructions in 3110.423 for 89.0 MIPS
>
> real    51m50,457s

... 276e9 divided by 51 divided by 60... is 90 million.

seriously? 90 *million* instructions per second?  but that's around 30 real
clock cycles per simulated instruction, which is stunning.

l.



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