CRC32 (R64, R64)

With unroll_count=500 and no inner loop

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9

Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 3.0
- Reference cycles: 1.85
- TOPDOWN_RETIRING.ALL: 1.0
- UOPS_MS: 0.0

With loop_count=1000 and unroll_count=10

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9

Show nanoBench command
Results:
- Instructions retired: 1.2
- Core cycles: 3.0
- Reference cycles: 1.82
- TOPDOWN_RETIRING.ALL: 1.2
- UOPS_MS: 0.0

With loop_count=100 and unroll_count=100

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9

Show nanoBench command
Results:
- Instructions retired: 1.02
- Core cycles: 3.0
- Reference cycles: 1.82
- TOPDOWN_RETIRING.ALL: 1.02
- UOPS_MS: 0.0

With 4 independent instructions

With unroll_count=200 and no inner loop

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9

Show nanoBench command
Results:
- Instructions retired: 4.0
- Core cycles: 4.0
- Reference cycles: 2.47
- TOPDOWN_RETIRING.ALL: 4.0
- UOPS_MS: 0.0

With loop_count=1000 and unroll_count=2

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9

Show nanoBench command
Results:
- Instructions retired: 5.0
- Core cycles: 4.01
- Reference cycles: 2.42
- TOPDOWN_RETIRING.ALL: 5.0
- UOPS_MS: 0.0

With loop_count=100 and unroll_count=20

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9

Show nanoBench command
Results:
- Instructions retired: 4.1
- Core cycles: 4.01
- Reference cycles: 2.43
- TOPDOWN_RETIRING.ALL: 4.1
- UOPS_MS: 0.0

With 8 independent instructions

With unroll_count=100 and no inner loop

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9
  18:	f2 4d 0f 38 f1 e9    	crc32  r13,r9
  1e:	f2 4d 0f 38 f1 f1    	crc32  r14,r9
  24:	f2 49 0f 38 f1 d9    	crc32  rbx,r9
  2a:	f2 49 0f 38 f1 c9    	crc32  rcx,r9

Show nanoBench command
Results:
- Instructions retired: 8.0
- Core cycles: 8.0
- Reference cycles: 5.03
- TOPDOWN_RETIRING.ALL: 8.0
- UOPS_MS: 0.0

With loop_count=1000 and unroll_count=1

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9
  18:	f2 4d 0f 38 f1 e9    	crc32  r13,r9
  1e:	f2 4d 0f 38 f1 f1    	crc32  r14,r9
  24:	f2 49 0f 38 f1 d9    	crc32  rbx,r9
  2a:	f2 49 0f 38 f1 c9    	crc32  rcx,r9

Show nanoBench command
Results:
- Instructions retired: 10.0
- Core cycles: 8.01
- Reference cycles: 4.84
- TOPDOWN_RETIRING.ALL: 10.0
- UOPS_MS: 0.0

With loop_count=100 and unroll_count=10

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9
  18:	f2 4d 0f 38 f1 e9    	crc32  r13,r9
  1e:	f2 4d 0f 38 f1 f1    	crc32  r14,r9
  24:	f2 49 0f 38 f1 d9    	crc32  rbx,r9
  2a:	f2 49 0f 38 f1 c9    	crc32  rcx,r9

Show nanoBench command
Results:
- Instructions retired: 8.2
- Core cycles: 8.01
- Reference cycles: 4.84
- TOPDOWN_RETIRING.ALL: 8.2
- UOPS_MS: 0.0

With 12 independent instructions

With unroll_count=100 and no inner loop

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9
  18:	f2 4d 0f 38 f1 e9    	crc32  r13,r9
  1e:	f2 4d 0f 38 f1 f1    	crc32  r14,r9
  24:	f2 49 0f 38 f1 d9    	crc32  rbx,r9
  2a:	f2 49 0f 38 f1 c9    	crc32  rcx,r9
  30:	f2 49 0f 38 f1 d1    	crc32  rdx,r9
  36:	f2 49 0f 38 f1 f9    	crc32  rdi,r9
  3c:	f2 49 0f 38 f1 f1    	crc32  rsi,r9
  42:	f2 49 0f 38 f1 e9    	crc32  rbp,r9

Show nanoBench command
Results:
- Instructions retired: 12.0
- Core cycles: 12.0
- Reference cycles: 7.28
- TOPDOWN_RETIRING.ALL: 12.0
- UOPS_MS: 0.0

With loop_count=1000 and unroll_count=1

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9
  18:	f2 4d 0f 38 f1 e9    	crc32  r13,r9
  1e:	f2 4d 0f 38 f1 f1    	crc32  r14,r9
  24:	f2 49 0f 38 f1 d9    	crc32  rbx,r9
  2a:	f2 49 0f 38 f1 c9    	crc32  rcx,r9
  30:	f2 49 0f 38 f1 d1    	crc32  rdx,r9
  36:	f2 49 0f 38 f1 f9    	crc32  rdi,r9
  3c:	f2 49 0f 38 f1 f1    	crc32  rsi,r9
  42:	f2 49 0f 38 f1 e9    	crc32  rbp,r9

Show nanoBench command
Results:
- Instructions retired: 14.0
- Core cycles: 12.01
- Reference cycles: 7.28
- TOPDOWN_RETIRING.ALL: 14.0
- UOPS_MS: 0.0

With loop_count=100 and unroll_count=10

Code:

   0:	f2 4d 0f 38 f1 c1    	crc32  r8,r9
   6:	f2 4d 0f 38 f1 d1    	crc32  r10,r9
   c:	f2 4d 0f 38 f1 d9    	crc32  r11,r9
  12:	f2 4d 0f 38 f1 e1    	crc32  r12,r9
  18:	f2 4d 0f 38 f1 e9    	crc32  r13,r9
  1e:	f2 4d 0f 38 f1 f1    	crc32  r14,r9
  24:	f2 49 0f 38 f1 d9    	crc32  rbx,r9
  2a:	f2 49 0f 38 f1 c9    	crc32  rcx,r9
  30:	f2 49 0f 38 f1 d1    	crc32  rdx,r9
  36:	f2 49 0f 38 f1 f9    	crc32  rdi,r9
  3c:	f2 49 0f 38 f1 f1    	crc32  rsi,r9
  42:	f2 49 0f 38 f1 e9    	crc32  rbp,r9

Show nanoBench command
Results:
- Instructions retired: 12.2
- Core cycles: 12.01
- Reference cycles: 7.28
- TOPDOWN_RETIRING.ALL: 12.2
- UOPS_MS: 0.0

With the same register for for different operands

With 1 independent instruction

With unroll_count=500 and no inner loop

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8

Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 3.0
- Reference cycles: 1.85
- TOPDOWN_RETIRING.ALL: 1.0
- UOPS_MS: 0.0

With loop_count=1000 and unroll_count=10

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8

Show nanoBench command
Results:
- Instructions retired: 1.2
- Core cycles: 3.0
- Reference cycles: 1.82
- TOPDOWN_RETIRING.ALL: 1.2
- UOPS_MS: 0.0

With loop_count=100 and unroll_count=100

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8

Show nanoBench command
Results:
- Instructions retired: 1.02
- Core cycles: 3.0
- Reference cycles: 1.82
- TOPDOWN_RETIRING.ALL: 1.02
- UOPS_MS: 0.0

With 4 independent instructions

With unroll_count=200 and no inner loop

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11

Show nanoBench command
Results:
- Instructions retired: 4.0
- Core cycles: 4.0
- Reference cycles: 2.47
- TOPDOWN_RETIRING.ALL: 4.0
- UOPS_MS: 0.0

With loop_count=1000 and unroll_count=2

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11

Show nanoBench command
Results:
- Instructions retired: 5.0
- Core cycles: 4.01
- Reference cycles: 2.43
- TOPDOWN_RETIRING.ALL: 5.0
- UOPS_MS: 0.0

With loop_count=100 and unroll_count=20

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11

Show nanoBench command
Results:
- Instructions retired: 4.1
- Core cycles: 4.01
- Reference cycles: 2.43
- TOPDOWN_RETIRING.ALL: 4.1
- UOPS_MS: 0.0

With 8 independent instructions

With unroll_count=100 and no inner loop

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11
  18:	f2 4d 0f 38 f1 e4    	crc32  r12,r12
  1e:	f2 4d 0f 38 f1 ed    	crc32  r13,r13
  24:	f2 4d 0f 38 f1 f6    	crc32  r14,r14
  2a:	f2 48 0f 38 f1 db    	crc32  rbx,rbx

Show nanoBench command
Results:
- Instructions retired: 8.0
- Core cycles: 8.0
- Reference cycles: 4.94
- TOPDOWN_RETIRING.ALL: 8.0
- UOPS_MS: 0.0

With loop_count=1000 and unroll_count=1

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11
  18:	f2 4d 0f 38 f1 e4    	crc32  r12,r12
  1e:	f2 4d 0f 38 f1 ed    	crc32  r13,r13
  24:	f2 4d 0f 38 f1 f6    	crc32  r14,r14
  2a:	f2 48 0f 38 f1 db    	crc32  rbx,rbx

Show nanoBench command
Results:
- Instructions retired: 10.0
- Core cycles: 8.01
- Reference cycles: 4.84
- TOPDOWN_RETIRING.ALL: 10.0
- UOPS_MS: 0.0

With loop_count=100 and unroll_count=10

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11
  18:	f2 4d 0f 38 f1 e4    	crc32  r12,r12
  1e:	f2 4d 0f 38 f1 ed    	crc32  r13,r13
  24:	f2 4d 0f 38 f1 f6    	crc32  r14,r14
  2a:	f2 48 0f 38 f1 db    	crc32  rbx,rbx

Show nanoBench command
Results:
- Instructions retired: 8.2
- Core cycles: 8.01
- Reference cycles: 4.84
- TOPDOWN_RETIRING.ALL: 8.2
- UOPS_MS: 0.0

With 13 independent instructions

With unroll_count=100 and no inner loop

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11
  18:	f2 4d 0f 38 f1 e4    	crc32  r12,r12
  1e:	f2 4d 0f 38 f1 ed    	crc32  r13,r13
  24:	f2 4d 0f 38 f1 f6    	crc32  r14,r14
  2a:	f2 48 0f 38 f1 db    	crc32  rbx,rbx
  30:	f2 48 0f 38 f1 c9    	crc32  rcx,rcx
  36:	f2 48 0f 38 f1 d2    	crc32  rdx,rdx
  3c:	f2 48 0f 38 f1 ff    	crc32  rdi,rdi
  42:	f2 48 0f 38 f1 f6    	crc32  rsi,rsi
  48:	f2 48 0f 38 f1 ed    	crc32  rbp,rbp

Show nanoBench command
Results:
- Instructions retired: 13.0
- Core cycles: 13.0
- Reference cycles: 7.8
- TOPDOWN_RETIRING.ALL: 13.0
- UOPS_MS: 0.0

With loop_count=1000 and unroll_count=1

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11
  18:	f2 4d 0f 38 f1 e4    	crc32  r12,r12
  1e:	f2 4d 0f 38 f1 ed    	crc32  r13,r13
  24:	f2 4d 0f 38 f1 f6    	crc32  r14,r14
  2a:	f2 48 0f 38 f1 db    	crc32  rbx,rbx
  30:	f2 48 0f 38 f1 c9    	crc32  rcx,rcx
  36:	f2 48 0f 38 f1 d2    	crc32  rdx,rdx
  3c:	f2 48 0f 38 f1 ff    	crc32  rdi,rdi
  42:	f2 48 0f 38 f1 f6    	crc32  rsi,rsi
  48:	f2 48 0f 38 f1 ed    	crc32  rbp,rbp

Show nanoBench command
Results:
- Instructions retired: 15.0
- Core cycles: 13.01
- Reference cycles: 7.89
- TOPDOWN_RETIRING.ALL: 15.0
- UOPS_MS: 0.0

With loop_count=100 and unroll_count=10

Code:

   0:	f2 4d 0f 38 f1 c0    	crc32  r8,r8
   6:	f2 4d 0f 38 f1 c9    	crc32  r9,r9
   c:	f2 4d 0f 38 f1 d2    	crc32  r10,r10
  12:	f2 4d 0f 38 f1 db    	crc32  r11,r11
  18:	f2 4d 0f 38 f1 e4    	crc32  r12,r12
  1e:	f2 4d 0f 38 f1 ed    	crc32  r13,r13
  24:	f2 4d 0f 38 f1 f6    	crc32  r14,r14
  2a:	f2 48 0f 38 f1 db    	crc32  rbx,rbx
  30:	f2 48 0f 38 f1 c9    	crc32  rcx,rcx
  36:	f2 48 0f 38 f1 d2    	crc32  rdx,rdx
  3c:	f2 48 0f 38 f1 ff    	crc32  rdi,rdi
  42:	f2 48 0f 38 f1 f6    	crc32  rsi,rsi
  48:	f2 48 0f 38 f1 ed    	crc32  rbp,rbp

Show nanoBench command
Results:
- Instructions retired: 13.2
- Core cycles: 13.01
- Reference cycles: 7.89
- TOPDOWN_RETIRING.ALL: 13.2
- UOPS_MS: 0.0

CRC32 (R64, R64) - Throughput and Uops

With different registers for different operands

With 1 independent instruction

With unroll_count=500 and no inner loop

With loop_count=1000 and unroll_count=10

With loop_count=100 and unroll_count=100

With 4 independent instructions

With unroll_count=200 and no inner loop

With loop_count=1000 and unroll_count=2

With loop_count=100 and unroll_count=20

With 8 independent instructions

With unroll_count=100 and no inner loop

With loop_count=1000 and unroll_count=1

With loop_count=100 and unroll_count=10

With 12 independent instructions

With unroll_count=100 and no inner loop

With loop_count=1000 and unroll_count=1

With loop_count=100 and unroll_count=10

With the same register for for different operands

With 1 independent instruction

With unroll_count=500 and no inner loop

With loop_count=1000 and unroll_count=10

With loop_count=100 and unroll_count=100

With 4 independent instructions

With unroll_count=200 and no inner loop

With loop_count=1000 and unroll_count=2

With loop_count=100 and unroll_count=20

With 8 independent instructions

With unroll_count=100 and no inner loop

With loop_count=1000 and unroll_count=1

With loop_count=100 and unroll_count=10

With 13 independent instructions

With unroll_count=100 and no inner loop

With loop_count=1000 and unroll_count=1

With loop_count=100 and unroll_count=10