On 10/19/2020 9:52 AM, Andi Kleen wrote:
I believe this is a Skylake and there is a known bug in the Skylake
metric DRAM_Parallel_Reads as described here:
https://lore.kernel.org/lkml/CAP-5=fxejvaqa9qfw66cy77qb962+jbe8tt5bslooocfmod...@mail.gmail.com/
Fixing the bug needs more knowledge than what is available in manuals.
Hopefully Intel can take a look.

Oh I missed the original mail for some reason.  Yes it should be cmask instead 
of thresh
for client.  I think thresh is used on the server uncore only, not on the 
client.

Jin Yao, can you send a patch please?

-Andi


Yes, the DRAM_Parallel_Reads works on server but it's failed on client.

I will post a patch to fix that.

Thanks
Jin Yao

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