Page Comparison

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1. Decimal
   

   Code Block
   WorkerCpuAffinity = 31

   The setting above exposes cores #0,1,2,3,4
   (see Backward compatibility)
   
   

2. Hexadecimal 
   

   Info
   Introduced in FA C++ 2.27.1

   Code Block
   WorkerCpuAffinity = 0x1F3A

   The setting above exposes cores #1,3,4,5,8,9,10,11,12
   
   

3. Cores-set format (like Linux' taskset command)
   

   Info
   Introduced in FA C++ 2.27.1

   Code Block
   # core numbers: integer values of set [0..63] Session.Default.RecvCpuAffinity = 2-4 # separator character: ',' HelperCpuAffinity = 1,4 # grouping characters: '{' '}' WorkerCpuAffinity = {0}

   The settings above expose cores respectively #2,3,4;  #1,4; #0;
   

   Info
   NOTE: To avoid erroneous reading with the cores-set format, use a grouping of characters in case of single-core in the mask: WorkerCpuAffinity = 31 - it means cores #0,1,2,3,4 WorkerCpuAffinity ={31} - it means cores #31core #31

Support ranges

• Use comma-separated list instead of bitmask (decimal values in the range [0..63] separated by comma)

  Code Block
  Session.Default.RecvCpuAffinity = {1,3,4,5,8,9,10,11,12}

• Supports ranges (like Linux' taskset command) 

  Code Block
  Session.Default.RecvCpuAffinity = 1,3-5,8-12

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# The new settings uses core #2
WorkerCpuAffinity = 2 4
WorkerCpuAffinity = 0x2 0x4
WorkerCpuAffinity =  {2}


# The old behavior uses cores # 1, 2, 3. Not using core #0
WorkerCpuAffinity = 14
# The old behavior uses cores #0
WorkerCpuAffinity = 1

# The new behavior uses cores #2 and #4
WorkerCpuAffinity = 0x14
# The new behavior uses core #14
WorkerCpuAffinity = {14}
# The new behavior uses core #2 and #4
WorkerCpuAffinity = {2,4}

# The old behavior means all cores for mapping (default) 
WorkerCpuAffinity = 0
# The new behavior uses core #0
WorkerCpuAffinity = {0}
# The new representation to map all cores:
WorkerCpuAffinity = {0-63}
WorkerCpuAffinity = 0xFFFFFFFFFFFFFFFF

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