Apple Microarchitecture Research by Dougall Johnson

M1/A14 P-core (Firestorm): Overview | Base Instructions | SIMD and FP Instructions
M1/A14 E-core (Icestorm):  Overview | Base Instructions | SIMD and FP Instructions

FMINNM (vector, 4S)

Test 1: uops

Code:

  fminnm v0.4s, v0.4s, v1.4s
  movi v0.16b, 1
  movi v1.16b, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 0.000

Load/store unit issues: 0.000

SIMD/FP unit issues: 1.000

retire uop (01)cycle (02)03mmu table walk data (08)09l2 tlb miss data (0b)193f4e51schedule uop (52)schedule simd uop (54)dispatch simd uop (57)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map simd uop (7e)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst simd alu (9a)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)f5f6f7f8fd
100420371500006116872510001000100026468012018203720371572318951000100020002037203711100110000073216331787100020382038203820382038
100420371500006116872510001000100026468012018203720371572318951000100020002037203711100110000073316331787100020382038203820382038
100420371501006116872510001000100026468002018203720371572318951000100020002037203711100110000073316331787100020382038203820382038
100420371500006116872510001000100026468012018203720371572318951000100020002037203711100110000073316331787100020382038203820382038
100420371500006116872510001000100026468002018203720371572318951000100020002037203711100110000073316331787100020382038203820382038
100420371500006116872510001000100026468002018203720371572318951000100020002037203711100110000073316331787100020382038203820382038
100420371500006116872510001000100026468002018203720371572318951000100020002037203711100110000073316331787100020382038203820382038
100420371500006116872510001000100026468012018203720371572318951000100020002037203711100110000073316331787100020382038203820382038
100420371500006116872510001000100026468012018203720371572318951000100020002037203711100110000073316331817100020382038203820382038
100420371610006116872510001000100026468012018203720371572318951000100020002037203711100110000073316331787100020382038203820382038

Test 2: Latency 1->2

Code:

  fminnm v0.4s, v0.4s, v1.4s
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03mmu table walk data (08)1e1f3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb miss (a1)ld unit uop (a6)l1d cache writeback (a8)a9acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
102042003715000061196872510100100100001001000050028489631200182017920037184253187451010020010000200200002003720037211020110099100100100001002232307101161119791100001002003820181200382003820038
102042003715000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000007101161119791100001002003820038200382003820038
1020420037150000103196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000007101161119791100001002003820038200382003820038
1020420037150000103196872510100100100001001000050028476801200182003720037184223187451058020010000200200002003720037111020110099100100100001000000007101161119791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000000007101161119791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000000007101161119791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000000007101161119791100001002003820038200382003820038
1020420037150000441196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000010007101161119791100001002003820038200382003820038
1020420037150000103196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000010007101161119791100001002003820038200382003820038
1020420037150000103196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000007101161119791100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03l2 tlb miss data (0b)1e3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb miss (a1)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100006403163319785010000102003820038200382003820038
100242003715000821968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100006403163319785010000102003820038200382003820038
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100006403163319785010000102003820038200382003820038
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100036403163319785010000102003820038200382003820038
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100036403163319785010000102003820038200382003820038
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100006403163319823010000102003820038200382003820038
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100006403163319785010000102003820038200382003820038
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100006403163319785010000102003820038200382003820038
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100006403163319785010000102003820038200382003820038
100242003715000611968725100101010000101000050284768020018200372003718444318767100102010000202000020037200371110021109101010000100136403163319785010000102003820038200382003820038

Test 3: Latency 1->3

Code:

  fminnm v0.4s, v1.4s, v0.4s
  movi v0.16b, 1
  movi v1.16b, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)033a3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb access (a0)l1d tlb miss (a1)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
10204200371500611968725101001001000010010000500284768002001820037200371842231874510100200100002002000020037200371110201100991001001000010000007101161119791100001002003820038200382003820038
10204200371500611968725101001001000010010000500284768002001820037200371842231874510100200100002002000020037200371110201100991001001000010000007101161119791100001002003820038200382003820038
10204200371500611968725101001001000010010000500284768012001820037200371842231874510100200100002002000020037200371110201100991001001000010000007101161119791100001002003820038200382003820038
10204200371500611968725101001001000010010000500284768002001820037200371842231874510100200100002002000020037200371110201100991001001000010000067101161119791100001002003820038200382003820038
10204200371500611968725101001001000010010000500284768002001820037200371842231874510100200100002002000020037200371110201100991001001000010000007101161119791100001002003820038200382003820038
10204200371500611968725101001001000010010000500284768012001820037200371842231874510100200100002002000020037200371110201100991001001000010000007101161119791100001002003820038200382003820038
10204200371500611968725101001001004810010000500284768002001820037200371842231874510100200100002002000020037200371110201100991001001000010000007101161119791100001002003820038200382003820038
10204200371500611968725101001001000010010000500284768012001820037200371842231874510100200100002002000020037200371110201100991001001000010000007101161119791100001002003820038200382003820038
102042003715001711968725101001001000010010000500284768002001820037200371842231874510100200100002002000020037200371110201100991001001000010002007101161119791100001002003820038200382003820038
10204200371500611968725101001001000010010000500284768002001820037200371842231874510100200100002002000020037200371110201100991001001000010000007101161119791100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03mmu table walk data (08)191e3f4e51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb miss (a1)l1d cache writeback (a8)branch cond mispred nonspec (c5)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
10024200371500006119687251001010100001010000502847680020018200372003718444318767100102010000202000020037200371110021109101010000100006402162219785010000102003820038200382003820038
10024200371500006119687251001010100001010000502847680020018200372003718444318767100102010000202000020037200371110021109101010000100006402162219785010000102003820038200382003820038
100242003715000010319687251001010100001010000502847680020018200372003718444318767100102010000202000020037200371110021109101010000100006402162219785010000102003820038200382003820038
10024200371500006119687251001010100001010000502847680020018200372003718444318767100122010000202000020037200371110021109101010000100006402162219785010000102003820038200382003820038
10024200371500006119687251001010100001010000502847680020018200372003718444318767100102010000202000020037200371110021109101010000100006402162219785010000102003820038200382003820038
100242003715000010319687251001010100001010000502847680020018200372003718444318767100102010000202000020037200372110021109101010000100006402162219785010000102003820038200382003820038
100242003715000010819687251001010100001010000502847680020018200372003718444318767100102010000202000020037200371110021109101010000100006402162219785010000102003820038200382003820038
100242003715000043319687251001010100001210000502847680020018200372003718444318767100102010000202000020037200371110021109101010000100006402162219785010000102003820038200382003820038
10024200371500006119687251001010100001210000602847680020018200372003718444318767100122010000202000020037200371110021109101010000100006404164419787010000102003820038200382003820038
100242003715000010319687251001010100001010000502847680020018200372003718444318767100102010000202000020037200371110021109101010000100006602162219785110000102017020038200382003820038

Test 4: throughput

Count: 8

Code:

  fminnm v0.4s, v8.4s, v9.4s
  fminnm v1.4s, v8.4s, v9.4s
  fminnm v2.4s, v8.4s, v9.4s
  fminnm v3.4s, v8.4s, v9.4s
  fminnm v4.4s, v8.4s, v9.4s
  fminnm v5.4s, v8.4s, v9.4s
  fminnm v6.4s, v8.4s, v9.4s
  fminnm v7.4s, v8.4s, v9.4s
  movi v8.16b, 9
  movi v9.16b, 10

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.2505

retire uop (01)cycle (02)03mmu table walk instruction (07)mmu table walk data (08)l2 tlb miss instruction (0a)l2 tlb miss data (0b)18191e1f3f51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d tlb access (a0)l1d tlb miss (a1)ld unit uop (a6)l1d cache writeback (a8)a9acc2branch cond mispred nonspec (c5)branch mispred nonspec (cb)cdcfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
8020420056150101000002925801081008000810080020500640132120019200382003899776998980120200800322001600642003820038118020110099100100800001000000000111511821611200350800001002003920039200392003920039
8020420038150101000002925801081008000810080020500640132020019200382003899776998980120200800322001600642003820038118020110099100100800001000000000111511811611200350800001002003920039200392003920039
80204200381501010000083725801001008000010080000500640000020019200382003899733999680100200800002001600002003820038118020110099100100800001000000000000511021622200350800001002003920039200392003920039
8020420038150000000004025801001008000010080000500640000020019200382003899733999680100200800002001600002003820038118020110099100100800001000000000000511021622200350800001002003920039200392003920039
80204200381500000000058925801001008000010080000500640000020019200382003899733999680100200800002001600002003820038118020110099100100800001000000000000511021622200350800001002003920039200392003920039
8020420038150000000004025801001008000010080000500640000020019200382003899733999680100200800002001600002003820038118020110099100100800001000000000000511021622200350800001002003920039200392003920039
8020420038150000000004025801001008000010080000500640000020019200382003899733999680100200800002001600002003820038118020110099100100800001000000000000511021622200350800001002003920039200392003920039
8020420038149000000004025801001008000010080000500640000020019200382003899733999680100200800002001600002003820038118020110099100100800001000000000000511021622200350800001002003920039200392003920039
80204200381500000000040258010010080000100800005006400000200192003820038997314999680100200800002001600002003820038118020110099100100800001000000000000511021622200350800001002003920039200392003920039
8020420038150000000004025801001008000010080000500640000020019200382003899733999680100200800002001600002003820038118020110099100100800001000000000000511021622200350800001002003920039200392003920039

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.2505

retire uop (01)cycle (02)03mmu table walk data (08)l2 tlb miss data (0b)1e1f3f51schedule uop (52)schedule int uop (53)schedule simd uop (54)dispatch int uop (56)dispatch simd uop (57)int uops in schedulers (59)ldst uops in schedulers (5b)60696b6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map simd uop (7e)map int uop inputs (7f)map simd uop inputs (81)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)inst simd alu (9a)9fl1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
8002420047150000060258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050206166620035080000102003920039200392003920039
8002420038150000039508001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050204166620035080000102003920039200392003920039
8002420038150000039258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050205165520035080000102003920039200392003920039
8002420038150000080258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050205164420035080000102003920039200392003920039
8002420038150000039258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050207165620035080000102003920039200392003920039
8002420038150000039258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050205165620035080000102003920039200392003920039
8002420038150000039258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050203166720035080000102003920039200392003920039
8002420038150000039258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050204165520035080000102003920039200392003920039
8002420038150000039258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050206165520035080000102003920039200392003920039
8002420038150000039258001010800001080000506400001200190200382003899963100188001020800002016000020038200381180021109101080000100050203165420035080000102003920039200392003920039