Firestorm: FMSUB (scalar, H) measurements

Code:

  fmsub h0, h0, h1, h2

Initialization

  movi v0.16b, 1
  movi v1.16b, 2
  movi v2.16b, 3

(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

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	09	1e	3f	4e	51	schedule uop (52)	schedule simd uop (54)	dispatch simd uop (57)	ldst uops in schedulers (5b)	60	69	6d	6e	map stall dispatch (70)	map rewind (75)	map stall (76)	dispatch uop (78)	map simd uop (7e)	map simd uop inputs (81)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst simd alu (9a)	l1d cache writeback (a8)	ac	c2	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? simd retires (ee)	f5	f6	f7	f8	fd
1004	4037	30	0	0	61	3407	25	1000	1000	1000	531908	1	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	3	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	30	0	0	61	3407	25	1000	1000	1000	531908	1	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	30	0	0	149	3407	25	1000	1000	1000	531908	1	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	30	0	0	61	3407	25	1000	1000	1000	531908	1	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	30	0	0	61	3407	25	1000	1000	1000	531908	0	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	31	0	0	61	3407	25	1000	1000	1000	531908	0	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	30	0	0	61	3407	25	1000	1000	1000	531908	0	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	31	0	0	61	3407	25	1000	1000	1000	531908	0	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	30	0	0	105	3407	25	1000	1000	1000	531908	0	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038
1004	4037	30	0	0	61	3407	25	1000	1000	1000	531908	0	4018	4037	4037	3258	3	3895	1000	1000	3000	4037	4037	1	1	1001	1000	0	0	0	73	1	16	1	1	3473	1000	4038	4038	4038	4038	4038

Test 2: Latency 1->2

Code:

  fmsub h0, h0, h1, h2

Initialization

  movi v0.16b, 1
  movi v1.16b, 2
  movi v2.16b, 3

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 4.0037

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	mmu table walk data (08)	18	19	1e	1f	3a	3f	4e	51	schedule 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)	60	69	6d	6e	map stall dispatch (70)	simd prf full (72)	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)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	inst simd alu (9a)	9f	l1d tlb access (a0)	l1d tlb miss (a1)	ld unit uop (a6)	l1d cache writeback (a8)	a9	ac	c2	branch cond mispred nonspec (c5)	branch mispred nonspec (cb)	cd	cf	d0	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
10204	40037	300	0	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	1	40018	40037	40037	38115	0	6	38740	10100	200	10008	200	30024	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	1	1	1	718	0	1	16	0	0	39489	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	30	0	1	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38115	0	7	38741	10100	200	10008	200	30024	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	1	1	1	717	0	0	16	0	0	39490	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38115	0	7	38740	10100	200	10008	200	30024	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	1	1	1	718	0	0	16	0	0	39490	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38115	0	6	38741	10100	200	10008	200	30024	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	38	0	0	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	0	251	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	0	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	0	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	0	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	0	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	299	0	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	0	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	299	0	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	0	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	0	0	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038

1000 unrolls and 10 iterations

Result (median cycles for code): 4.0037

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	18	19	1e	3f	4e	51	schedule 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)	60	69	6d	6e	map 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)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	inst simd alu (9a)	9f	ld unit uop (a6)	l1d cache writeback (a8)	ac	c2	branch mispred nonspec (cb)	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
10024	40037	299	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	310	1	1	0	61	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	6	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	299	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	2	1	10021	10	9	10	10	10000	10	0	0	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5707439	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40084	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	640	2	16	3	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	726	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	1	0	0	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038

Test 3: Latency 1->3

Code:

  fmsub h0, h1, h0, h2

Initialization

  movi v0.16b, 1
  movi v1.16b, 2
  movi v2.16b, 3

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 4.0037

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	18	19	1e	1f	3a	3f	4e	51	schedule 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)	60	69	6d	6e	map 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)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	inst simd alu (9a)	9f	l1d cache writeback (a8)	a9	ac	c2	cf	d0	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
10204	40037	300	0	2	342	88	0	61	39407	25	10100	100	10000	100	10000	500	5706908	1	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	0	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	1	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	1	2	16	3	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	1	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	1	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	1	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	4	712	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	299	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	1	2	16	2	3	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	0	0	0	968	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	1	3	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	299	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	299	0	0	6	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038
10204	40037	299	0	0	0	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	710	1	2	16	2	2	39479	0	10000	100	40038	40038	40038	40038	40038

1000 unrolls and 10 iterations

Result (median cycles for code): 4.0037

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	mmu table walk data (08)	l2 tlb miss data (0b)	1e	3f	4e	51	schedule 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)	60	69	6d	6e	map 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)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	inst simd alu (9a)	9f	l1d tlb miss (a1)	l1d cache writeback (a8)	a9	ac	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	640	3	16	3	3	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	726	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	2	0	0	0	640	3	16	3	3	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	640	3	16	3	3	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	4	0	0	640	4	16	3	3	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	640	3	16	3	3	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	640	3	16	3	3	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	299	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	640	3	16	3	4	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	640	3	16	2	3	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	299	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	640	3	16	4	3	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	640	3	16	3	3	39473	10000	10	40038	40038	40038	40038	40038

Test 4: Latency 1->4

Code:

  fmsub h0, h1, h2, h0

Initialization

  movi v0.16b, 1
  movi v1.16b, 2
  movi v2.16b, 3

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 4.0037

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	1e	3a	3f	4e	51	schedule 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)	60	69	6d	6e	map 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)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	inst simd alu (9a)	9f	l1d cache writeback (a8)	ac	branch mispred nonspec (cb)	cf	d0	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
10204	40037	300	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	712	0	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	0	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	0	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	99	0	710	1	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	82	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	177	0	710	1	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	168	0	710	1	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	61	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	81	39407	25	10100	100	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	2	16	3	2	39479	10000	100	40038	40038	40038	40038	40038
10204	40037	300	0	0	61	39407	25	10100	117	10000	100	10000	500	5706908	0	40018	40037	40037	38108	3	38745	10100	200	10000	200	30000	40037	40037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	2	16	2	2	39479	10000	100	40038	40038	40038	40038	40038

1000 unrolls and 10 iterations

Result (median cycles for code): 4.0037

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	18	19	1e	3f	4e	51	schedule 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)	60	69	6d	6e	map 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)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	inst simd alu (9a)	9f	l1d tlb access (a0)	l1d cache writeback (a8)	ac	c2	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	61	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	84	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	299	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	60	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	75	0	640	2	16	2	5	39473	10000	10	40134	40133	40086	40085	40038
10024	40037	299	1	2	0	61	39407	25	10010	10	10012	12	10148	50	5706908	1	40088	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	60	0	684	2	32	2	4	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	299	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38144	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	1	6	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40084	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	63	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	24	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	1	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	48	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	300	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	69	0	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40038
10024	40037	299	0	0	0	61	39407	25	10010	10	10000	10	10000	50	5706908	0	40018	40037	40037	38130	3	38767	10010	20	10000	20	30000	40037	40037	1	1	10021	10	9	10	10	10000	10	0	0	78	2	640	2	16	2	2	39473	10000	10	40038	40038	40038	40038	40085

Test 5: throughput

Count: 8

Code:

  fmsub h0, h8, h9, h10
  fmsub h1, h8, h9, h10
  fmsub h2, h8, h9, h10
  fmsub h3, h8, h9, h10
  fmsub h4, h8, h9, h10
  fmsub h5, h8, h9, h10
  fmsub h6, h8, h9, h10
  fmsub h7, h8, h9, h10

Initialization

  movi v8.16b, 9
  movi v9.16b, 10
  movi v10.16b, 11

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

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

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	09	l2 tlb miss data (0b)	18	19	1e	1f	3f	51	schedule 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)	69	6d	6e	map 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)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	inst simd alu (9a)	9f	l1d tlb access (a0)	l1d tlb miss (a1)	l1d cache writeback (a8)	a9	ac	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? int output thing (e9)	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
80204	20049	150	2	0	0	0	0	0	4681	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	0	0	0	5110	2	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	150	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	0	0	6	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	150	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	0	0	0	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	150	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	0	0	0	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	150	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	0	0	0	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	150	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	1	0	90	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	151	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	1	0	0	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	150	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	0	0	0	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	150	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	0	0	0	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041
80204	20040	150	0	0	0	0	0	0	42	25	80100	100	80000	100	80000	500	640000	20021	20040	20040	9973	3	9998	80100	200	80000	200	240000	20040	20040	1	1	80201	100	99	100	100	80000	100	0	0	2	0	0	5110	1	16	1	1	20037	0	80000	100	20041	20041	20041	20041	20041

1000 unrolls and 10 iterations

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

All non-zero counters (first 10 of 64 runs)

retire uop (01)	cycle (02)	03	1e	1f	3f	51	schedule 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)	60	69	6b	6d	6e	map 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)	82	83	flush restart other nonspec (84)	85	inst all (8c)	inst branch (8d)	inst branch taken (90)	inst branch cond (94)	inst int alu (97)	inst simd alu (9a)	9f	l1d cache writeback (a8)	a9	ac	branch cond mispred nonspec (c5)	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
80024	20040	150	3	0	41	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	0	0	0	0	5020	17	16	17	14	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	155	0	0	41	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	0	0	9	0	5020	14	16	17	10	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	150	0	0	242	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	0	0	0	0	5020	14	16	17	9	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	150	0	0	516	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	12	0	9	0	5020	16	16	14	17	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	150	0	0	41	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	0	0	0	0	5020	17	16	14	17	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	150	0	0	41	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	56	0	3	0	5020	17	16	17	17	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	150	0	0	69	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	0	0	0	0	5020	17	16	8	17	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	150	0	0	41	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	17	0	177	0	5020	16	16	16	17	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	150	0	0	41	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	0	0	0	0	5020	15	16	16	17	20037	80000	10	20041	20041	20041	20041	20041
80024	20040	150	0	0	41	25	80010	10	80000	10	80000	50	640000	1	20021	0	20040	20040	9996	3	10020	80010	20	80000	20	240000	20040	20040	1	1	80021	10	9	10	10	80000	10	0	0	3	0	5020	17	16	17	13	20037	80000	10	20041	20041	20041	20041	20041

FMSUB (scalar, H)

Test 1: uops

1000 unrolls and 1 iteration

Test 2: Latency 1->2

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 3: Latency 1->3

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 4: Latency 1->4

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 5: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations