Re: [Gems-users] Zero L2 misses

[Arkaprava Basu <basu@xxxxxxxxxxx>]

Dear Rakesh,

          I think the profiling for L2 cache miss is turned off for 
that particular protocol ( not sure why though). So I think the quick 
fix is to go MESI_SCMP_bankdirectory-L2cache.sm and in the 
action(uu_profileMiss, "\u", desc="Profile the demand miss" ) , 
*uncomment* the line that starts with profile_L2Cache_miss .
I think this will resolve the issue.


Thanks
Arka


Rakesh Komuravelli wrote:
> Hi,
>
> I see L2 misses to be zero in the Ruby dump-stats. All other entries under
> L2_cache cache stats are zero too. This is for MESI_SCMP_bankdirectory
> protocol. I do see L1 D cache stats but I don't see any L1 I cache stats
> because I am not loading Opal. The versions and other parameters I am using
> are as follows:
>
> Versions:
> simics 3
> gems 2.1.1
>
> Simics commands before loading ruby:
> instruction-fetch-mode instruction-fetch-trace,
> istc-disable,
> dstc-disable,
> cpu-switch-time 1
>
> Ruby commands:
> ruby0.setparam g_NUM_PROCESSORS 16,
> ruby0.setparam g_PROCS_PER_CHIP 16,
> ruby0.setparam g_MEMORY_SIZE_BYTES 268435456,
> ruby0.setparam g_NUM_L2_BANKS 16,
> ruby0.setparam g_NUM_MEMORIES 16,
> ruby0.setparam NUMBER_OF_VIRTUAL_NETWORKS 5,
> ruby0.setparam_str g_CACHE_DESIGN NUCA,
> ruby0.setparam_str g_NETWORK_TOPOLOGY FILE_SPECIFIED,
> ruby0.setparam g_DATA_BLOCK_BYTES 64,
> ruby0.init
>
> Any help is greatly appreciated.
>
> Thanks,
> Rakesh
>
>
>
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