FrozenGene commented on issue #4747: [ThreadPool] Solve ARM BIG.LITTLE 
heterogeneous multicores
URL: https://github.com/apache/incubator-tvm/pull/4747#issuecomment-578374172
 
 
   To clarify your meaning, as hyper thread will make the big_count_ is twice 
times compared with physical cores. For example, phisical cores are 4, hyper 
thread will make the concurrency number be 8 (big_count_ is 8 too). So for 
hyper thread, we wish master thread could run the physical cores (id: 0-3), not 
cpu id 4-7. 
   
   
   ------------------ Original ------------------
   From: Yida Wang <[email protected]&gt;
   Date: Sat,Jan 25,2020 3:21 AM
   To: apache/incubator-tvm <[email protected]&gt;
   Cc: Zhao Wu <[email protected]&gt;, Author <[email protected]&gt;
   Subject: Re: [apache/incubator-tvm] [ThreadPool] Solve ARM BIG.LITTLE 
heterogeneous multicores (#4747)
   
   
   
   
   FYI, we just notice that if we don't bind the master thread, which is the 
default behavior, the master thread may cause the contention issue as it is 
allocated to a seemingly idle logical thread under hyperthreading. So I would 
propose to at least have the master thread bound to the intended running cores 
by default. @anijain2305
    
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