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 (scalar, H)

Test 1: uops

Code:

  fminnm h0, h0, h1
  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)031e3f4e51schedule uop (52)schedule simd uop (54)dispatch simd uop (57)ldst uops in schedulers (5b)696d6emap 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)e0ec? simd retires (ee)f5f6f7f8fd
100420371506116872510001000100026468020182037203715723189510001000200020372037111001100000731161117870100020382038203820382038
100420371506116872510001000100026468020182037203715723189510001000200020372037111001100000731161117870100020382038203820382038
1004203715061168725100010001000264680201820372037157231895100010002000203720371110011000012731161117870100020382038203820382038
100420371506116872510001000100026468020182037203715723189510001000200020372037111001100000731161117870100020382038203820382038
100420371506116872510001000100026468020182037203715723189510001000200020372037111001100020731161117870100020382038203820382038
1004203715126116872510001000100026468020182037203715723189510001000200020372037111001100000731161117870100020382038203820382038
100420371606116872510001000100026468020182037203715723189510001000200020372037111001100000731161117870100020382038203820382038
100420371506116872510001000100026468020182037203715723189510001000200020372037111001100000731161117870100020382038203820382038
100420371506116872510001000100026468020182037203715723189510001000200020372037111001100000731161117870100020382038203820382038
100420371606116872510001000100026468020182037203715723189510001000200020372037111001100000731161117870100020382038203820382038

Test 2: Latency 1->2

Code:

  fminnm h0, h0, h1
  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)03l2 tlb miss instruction (0a)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)9fld unit uop (a6)l1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000297102162219791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038
1020420037150012061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000007102162219791100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03mmu table walk instruction (07)mmu table walk data (08)l2 tlb miss data (0b)18191e1f3a3f4e51schedule 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 access (a0)l1d tlb miss (a1)ld unit uop (a6)st unit uop (a7)l1d cache writeback (a8)a9accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
1002420037150000000006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038
1002420037150000000006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038
1002420037150000006006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038
10024200371500000027006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038
10024200371500000021006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000002006402162219785010000102003820038200382003820038
1002420037150000003006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038
1002420037150000000006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038
10024200371500000021006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038
100242003715000000195006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038
100242003715000000474006119687251001010100001010000502847680200182003720037184443187671001020100002020000200372003711100211091010100001000000006402162219785010000102003820038200382003820038

Test 3: Latency 1->3

Code:

  fminnm h0, h1, h0
  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)03191e1f3f4e51schedule 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)acbranch mispred nonspec (cb)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
1020420037150012061196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
10204200371500001246196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
1020420037150000487196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715000061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
1020420037150000726196872510100100100001001000050028476801200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715009061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
1020420037150018061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
102042003715009061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038
10204200371500252061196872510100100100001001000050028476800200182003720037184223187451010020010000200200002003720037111020110099100100100001000000071011611197910100001002003820038200382003820038

1000 unrolls and 10 iterations

Result (median cycles for code): 2.0037

retire uop (01)cycle (02)03l2 tlb miss data (0b)1e1f3a3f4e51schedule 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 cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
1002420037150015001031968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010006402482219785010000102003820038200842008520038
100242003715002100611968725100101010000101000050284768002001820037200371844431876710010201066820200002003720037111002110910101000010006402162219785010000102003820038200382003820038
100242003715011500611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010006402162219785010000102003820038200382003820038
100242003715001200611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010006402162219785110000102003820038200382003820038
100242003715005100611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010006402162219785010000102003820038200382003820038
100242003715002100611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010006402162219785010000102003820038200382003820038
1002420037150012002511968725100101010000101000050284768002001820084200371844431876710010201000020200002003720037111002110910101000010006402162219785010000102003820038200382003820038
10024200371500900611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010036402162219785010000102003820038200382003820085
100242003715003600611968725100101010000101000050284768002001820037200371844431876710010201000020200002003720037111002110910101000010006402162219785010000102003820038200382003820038
10024200371500000611968725100101010000101000050284768002001820037200371844431878610010201000020200002003720037111002110910101000010006402162219785010000102003820038200382003820038

Test 4: throughput

Count: 8

Code:

  fminnm h0, h8, h9
  fminnm h1, h8, h9
  fminnm h2, h8, h9
  fminnm h3, h8, h9
  fminnm h4, h8, h9
  fminnm h5, h8, h9
  fminnm h6, h8, h9
  fminnm h7, h8, h9
  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 data (08)1e3f51schedule 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)6061696d6emap 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)9fld unit uop (a6)l1d cache writeback (a8)accfd0d2d5map dispatch bubble (d6)ddfetch restart (de)e0? simd retires (ee)? int retires (ef)f5f6f7f8fd
802042005815000402580100100800001008000050064000015200192003820038997339996801002008000020016000020038200381180201100991001008000010000335110513161120035800001002003920039200392003920039
80204200381500040258010010080000100800005006400001520019200382003899733999680100200800002001600002003820038118020110099100100800001000005110511161120035800001002003920039200392003920039
8020420038150043840258010010080000100800005006400001520019200382003899733999680100200800002001600002003820038118020110099100100800001000005110511161120035800001002003920039200392003920039
80204200381500040258010010080000100800005406400001520019200382003899733999680100200800002001600002003820038118020110099100100800001000005110511161120035800001002003920039200392003920039
80204200381500040258010010080000100800005006400001520019200382003899733999680100200800002001600002003820038118020110099100100800001000005110511161120035800001002003920039200392003920039
80204200381500040258010010080000100800005006400001520019200382003899733999680100200800002001600002003820038118020110099100100800001002205110511161120035800001002003920039200392003920039
802042003815000515258010010080000100800005006400001520019200382003899733999680100200800002001600002003820038118020110099100100800001000005110511161120035800001002003920039200392003920039
80204200381500040258010010080000100800005006400001520019200382003899733999680100200800002001600002003820038118020110099100100800001000035110511161120035800001002003920039200392003920039
80204200381500040258010010080000100800005006400001520019200382003899733999680100200800002001600002003820038118020110099100100800001000005110511161120035800001002003920039200392003920039
80204200381500040258010010080000100800005006400001520019200382003899733999680100200800002001600002003820038118020110099100100800001000005110511161120035800001002003920039200392003920039

1000 unrolls and 10 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)09l2 tlb miss instruction (0a)l2 tlb miss data (0b)18191e1f3a3f51schedule 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 mispred nonspec (cb)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? simd retires (ee)? int retires (ef)f5f6f7f8fd
800242009815000000000003925800101080000108000050640000120019200382003899963100188001020800002016000020038200381180021109101080000100000000050203164220035080000102003920039200392003920039
80024200381500000000000392580010108000010800005064000002001920038200389996310018800102080000201600002003820038118002110910108000010000150990050202164220035080000102003920039200392003920039
8002420140159000000000060925800101080000108000050640000120019200382003899963100188001020800002016000020038200381180021109101080000100001030050202162420035080000102003920039200392003920039
800242003815000000000003925800101080000108000050640000020019200382003899963100188001020800002016000020038200381180021109101080000100000000050202166220035080000102003920039200392003920039
8002420038150000000000039258001010800001080000506400000200192003820038999631001880010208000020160000200382003811800211091010800001000024060050202162420035080000102003920039200392003920039
800242003815010000000003925800101080000108000050640000020019200382003899963100188001020800002016000020038200381180021109101080000100000000050204162420035080000102003920039200392003920039
80024200381500000000000392580010108000010800005064000002001920087200389996310018800102080000201600002003820038118002110910108000010000001470050204162420035080000102003920039200392003920039
800242003815000000000008125800101080000108000050640000020019200382003899963100188001020800002016000020038200381180021109101080000100000000050204163420035080000102003920039200392003920039
800242003815000000000003925800101080000108000050640000020019200382003899963100188001020800002016000020038200381180021109101080000100000000050206164620035080000102003920039200392003920039
800242003815000000000003925800101080000108000050640000020019200382003899963100188001020800002016000020038200381180021109101080000100000000150202166420035080000102003920039200392003920039