Firestorm: RSHRN2 (4S) measurements

Code:

  rshrn2 v0.8h, v1.4s, #3

Initialization

  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

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

retire uop (01)	cycle (02)	03	1e	3f	4e	51	schedule uop (52)	schedule simd uop (54)	dispatch simd uop (57)	ldst uops in schedulers (5b)	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	cf	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? simd retires (ee)	f5	f6	f7	f8	fd
1004	3037	22	0	61	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	0	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	23	27	147	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	0	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	23	12	61	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	0	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	23	39	61	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	0	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	22	0	61	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	0	3	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	23	0	61	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	0	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	23	0	61	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	0	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	23	0	61	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3085	1	1	1001	1000	0	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	23	0	251	2548	25	1000	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	0	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038
1004	3037	23	0	61	2548	25	1005	1000	1000	398313	3018	3037	3037	2415	3	2895	1000	1000	2000	3037	3037	1	1	1001	1000	1	0	73	1	16	1	1	2630	1000	3038	3038	3038	3038	3038

Test 2: Latency 1->1

Code:

  rshrn2 v0.8h, v1.4s, #3

Initialization

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

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0037

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

retire uop (01)	cycle (02)	03	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 cache writeback (a8)	ac	c2	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
10204	30037	225	15	189	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	0	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	166	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	0	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	124	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	0	10000	100	30038	30038	30038	30038	30038
10204	30037	224	24	103	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	3	29634	0	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	124	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	0	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	124	29548	25	10100	100	10000	125	10000	626	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	25	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	124	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	0	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	61	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	0	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	187	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	0	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	124	29548	25	10100	100	10000	100	10000	500	4277313	0	30018	30037	30037	28265	3	28745	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	710	1	16	1	1	29634	0	10000	100	30038	30038	30038	30038	30038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

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

retire uop (01)	cycle (02)	03	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)	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	d5	map dispatch bubble (d6)	dd	fetch restart (de)	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
10024	30037	225	9	124	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	3	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	61	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	835	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	61	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	814	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	458	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	61	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	168	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	61	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	61	29548	25	10010	10	10000	10	10000	50	4277313	30018	30037	30037	28287	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	640	2	16	2	2	29630	10000	10	30038	30038	30038	30038	30038

Test 3: Latency 1->2

Code:

  rshrn2 v0.8h, v0.4s, #3

Initialization

  movi v0.16b, 1

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0037

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

retire uop (01)	cycle (02)	03	l2 tlb miss data (0b)	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 tlb miss (a1)	l1d cache writeback (a8)	a9	ac	branch cond mispred nonspec (c5)	branch mispred nonspec (cb)	cd	cf	d5	map dispatch bubble (d6)	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
10204	30037	225	0	0	0	61	29547	25	10100	100	10000	100	10000	500	4277160	1	30018	30037	30037	28271	7	28741	10100	200	10000	200	20000	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	718	0	16	29646	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	0	0	61	29547	25	10100	100	10000	100	10000	500	4277160	0	30018	30037	30037	28271	7	28740	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	717	0	16	29645	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	0	0	61	29547	25	10100	100	10000	100	10000	500	4277160	1	30018	30037	30037	28271	7	28741	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	717	0	16	29645	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	0	0	61	29547	25	10100	100	10000	100	10000	500	4277160	0	30018	30037	30037	28271	7	28740	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	717	0	16	29646	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	0	1	61	29547	25	10100	100	10000	100	10000	500	4277160	0	30018	30037	30037	28271	7	28740	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	718	0	16	29645	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	0	0	61	29547	25	10100	100	10000	100	10000	500	4277160	0	30018	30037	30037	28271	7	28740	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	717	0	16	29646	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	0	0	61	29547	25	10100	100	10000	100	10000	500	4277160	1	30018	30037	30037	28271	7	28740	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	718	0	16	29645	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	0	0	61	29547	25	10100	100	10000	100	10000	500	4277160	0	30018	30037	30037	28271	6	28741	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	718	0	16	29645	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	0	0	61	29547	25	10100	100	10000	100	10000	500	4277160	1	30018	30037	30037	28271	7	28741	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	0	1	1	1	718	0	16	29645	10000	100	30038	30038	30038	30038	30038
10204	30037	225	0	3	0	61	29547	25	10100	100	10000	100	10000	500	4277160	0	30018	30037	30037	28271	7	28741	10100	200	10008	200	20016	30037	30037	1	1	10201	100	99	100	100	10000	100	0	0	0	3	1	1	1	717	0	16	29645	10000	100	30038	30038	30038	30038	30038

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0037

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

retire uop (01)	cycle (02)	03	mmu table walk data (08)	09	l2 tlb miss data (0b)	18	19	1e	1f	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 tlb miss (a1)	ld unit uop (a6)	st unit uop (a7)	l1d cache writeback (a8)	a9	ac	c2	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
10024	30037	225	0	0	0	0	0	0	0	61	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	3	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	0	0	0	0	0	0	61	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	0	0	0	0	0	0	89	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	0	0	0	0	0	0	61	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	0	0	0	0	0	0	61	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	0	0	0	0	0	0	61	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	0	0	0	0	0	0	156	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	1	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	224	0	0	0	0	0	0	0	726	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	0	0	0	0	0	0	61	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038
10024	30037	225	0	0	0	0	0	9	0	126	29547	25	10010	10	10000	10	10000	50	4277160	1	30018	30037	30037	28286	3	28767	10010	20	10000	20	20000	30037	30037	1	1	10021	10	9	10	10	10000	10	0	0	0	0	0	0	0	0	640	2	16	2	2	29629	0	10000	10	30038	30038	30038	30038	30038

Test 4: throughput

Count: 8

Code:

  movi v0.16b, 0
  rshrn2 v0.8h, v8.4s, #3
  movi v1.16b, 0
  rshrn2 v1.8h, v8.4s, #3
  movi v2.16b, 0
  rshrn2 v2.8h, v8.4s, #3
  movi v3.16b, 0
  rshrn2 v3.8h, v8.4s, #3
  movi v4.16b, 0
  rshrn2 v4.8h, v8.4s, #3
  movi v5.16b, 0
  rshrn2 v5.8h, v8.4s, #3
  movi v6.16b, 0
  rshrn2 v6.8h, v8.4s, #3
  movi v7.16b, 0
  rshrn2 v7.8h, v8.4s, #3

Initialization

  movi v8.16b, 9

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.2510

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

retire uop (01)	cycle (02)	03	18	19	1e	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	61	69	6d	6e	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)	branch cond mispred nonspec (c5)	branch mispred nonspec (cb)	cd	cf	d0	d2	d5	map dispatch bubble (d6)	db	dd	fetch restart (de)	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
160204	20089	150	0	0	0	29	25	80116	100	80016	100	80028	500	640196	0	0	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	5	1	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	150	0	0	0	29	25	80116	100	80016	100	80028	500	640196	1	5	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	5	0	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	151	0	0	0	29	25	80116	100	80016	100	80028	500	640196	1	5	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	0	1	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	151	0	0	0	29	25	80116	100	80016	100	80028	500	640196	0	0	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	0	1	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	150	0	0	0	29	25	80116	100	80016	100	80028	500	640196	0	0	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	5	1	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	150	0	0	0	29	25	80116	100	80016	100	80028	500	640196	1	5	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	5	1	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	150	1	1	0	29	25	80116	100	80016	100	80028	500	640196	1	5	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	0	0	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	150	0	0	0	29	25	80116	100	80016	100	80028	500	640196	1	5	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	5	1	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	150	0	0	0	29	25	80116	100	80016	100	80028	500	640196	1	0	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	0	0	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066
160204	20065	151	0	0	0	29	25	80116	100	80016	100	80028	500	640196	0	0	20045	20065	20065	6	12	80128	200	80028	200	160056	20065	20065	1	1	160201	100	99	100	100	160000	100	0	1	1	1	10119	5	1	0	16	0	0	0	20062	160000	100	20066	20066	20066	20066	20066

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.2506

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

retire uop (01)	cycle (02)	03	l1i tlb fill (04)	mmu table walk data (08)	l2 tlb miss data (0b)	18	19	1e	1f	3a	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)	5f	60	61	69	6d	6e	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	cf	d0	d2	l1i cache miss demand (d3)	d5	map dispatch bubble (d6)	d9	da	db	dd	fetch restart (de)	e0	? int output thing (e9)	ea	ec	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
160024	20075	150	1	0	0	0	0	0	0	0	45	27	80010	10	80000	10	80000	50	640000	1	1	5	20032	20051	20051	3	22	80010	20	80000	20	160000	20051	20051	1	1	160021	10	9	10	10	160000	10	0	0	0	10027	8	3	1	2	34	2	1	2	4	4	20057	0	20	1	160000	10	20052	20052	20052	20052	20052
160024	20051	150	0	0	0	0	0	0	0	0	45	29	80010	10	80000	10	80000	50	640000	1	1	5	20032	20051	20051	3	22	80010	20	80000	20	160000	20051	20051	1	1	160021	10	9	10	10	160000	10	0	0	0	10027	8	5	1	5	25	4	1	2	5	5	20057	0	40	1	160000	10	20052	20061	20052	20052	20052
160024	20051	150	0	0	0	0	0	15	0	0	51	27	80010	10	80000	10	80000	50	640000	1	0	0	20032	20051	20051	3	22	80010	20	80000	20	160000	20051	20060	1	1	160021	10	9	10	10	160000	10	0	0	3	10027	11	4	1	4	25	2	2	1	4	2	20048	0	20	1	160000	10	20052	20052	20052	20052	20052
160024	20060	150	0	0	0	0	0	0	0	0	636	27	80010	10	80000	10	80000	50	640000	0	0	5	20032	20051	20060	3	22	80010	20	80211	20	160000	20051	20051	1	1	160021	10	9	10	10	160000	10	0	0	0	10030	8	4	1	3	25	2	1	1	3	3	20048	0	20	1	160000	10	20052	20052	20061	20052	20052
160024	20051	150	0	0	0	0	0	0	0	0	45	27	80010	10	80000	10	80000	50	640000	1	1	0	20032	20372	20051	3	22	80010	20	80000	20	160000	20060	20051	1	1	160021	10	9	10	10	160000	10	0	0	0	10027	11	5	2	4	25	2	2	1	4	3	20048	0	20	1	160000	10	20052	20052	20292	20052	20052
160024	20051	150	0	0	0	0	0	0	0	0	45	27	80010	10	80000	10	80000	50	640000	1	1	0	20032	20060	20060	3	22	80010	20	80000	20	160000	20051	20060	1	1	160021	10	9	10	10	160000	10	0	0	0	10030	8	1	1	5	25	2	1	1	5	3	20048	0	40	2	160000	10	20052	20052	20052	20052	20052
160024	20051	150	0	0	1	0	0	0	0	0	194	27	80010	10	80000	10	80000	50	640000	1	1	5	20032	20051	20051	3	22	80010	20	80000	20	160000	20294	20051	1	1	160021	10	9	10	10	160000	10	0	0	0	10027	3	1	1	4	25	2	1	1	4	4	20048	0	20	1	160000	10	20052	20052	20052	20052	20052
160024	20051	150	0	0	0	0	0	0	0	0	63	27	80010	10	80000	10	80000	50	640000	0	1	0	20032	20051	20051	3	22	80010	20	80000	20	160000	20051	20051	1	1	160021	10	9	10	10	160000	10	0	0	0	10027	8	4	1	3	25	2	2	2	4	4	20048	0	20	1	160000	10	20061	20052	20052	20052	20052
160024	20051	150	0	0	0	0	0	9	176	0	45	27	80010	10	80000	10	80000	50	640000	0	0	0	20032	20051	20051	3	22	80010	20	80000	20	160000	20051	20060	1	1	160021	10	9	10	10	160000	10	0	0	0	10027	3	5	1	3	34	2	1	1	4	4	20048	0	20	1	160000	10	20061	20052	20052	20052	20052
160024	20051	150	0	0	0	0	0	0	0	0	45	27	80010	10	80000	10	80000	50	640000	1	0	5	20032	20051	20051	3	22	80010	20	80000	20	160000	20060	20051	1	1	160021	10	9	10	10	160000	10	0	0	0	10026	3	5	1	3	34	2	1	2	3	5	20048	0	20	1	160000	10	20052	20052	20052	20061	20052

Test 5: throughput

Count: 16

Code:

  rshrn2 v0.8h, v16.4s, #3
  rshrn2 v1.8h, v16.4s, #3
  rshrn2 v2.8h, v16.4s, #3
  rshrn2 v3.8h, v16.4s, #3
  rshrn2 v4.8h, v16.4s, #3
  rshrn2 v5.8h, v16.4s, #3
  rshrn2 v6.8h, v16.4s, #3
  rshrn2 v7.8h, v16.4s, #3
  rshrn2 v8.8h, v16.4s, #3
  rshrn2 v9.8h, v16.4s, #3
  rshrn2 v10.8h, v16.4s, #3
  rshrn2 v11.8h, v16.4s, #3
  rshrn2 v12.8h, v16.4s, #3
  rshrn2 v13.8h, v16.4s, #3
  rshrn2 v14.8h, v16.4s, #3
  rshrn2 v15.8h, v16.4s, #3

Initialization

  movi v16.16b, 17

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.2502

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

retire uop (01)	cycle (02)	03	mmu table walk data (08)	18	19	1e	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	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 tlb miss (a1)	l1d cache writeback (a8)	a9	ac	branch cond mispred nonspec (c5)	branch mispred nonspec (cb)	cd	cf	d5	map dispatch bubble (d6)	dd	e0	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
160204	40058	299	0	0	0	0	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	0	16	0	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	300	0	0	0	570	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	6	2	9	1	1	1	10118	0	16	2	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	300	0	0	0	0	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	3	16	0	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	300	0	0	0	0	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	0	16	0	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	299	0	0	0	0	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	0	16	0	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	300	0	0	0	0	246	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	0	16	0	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	300	0	0	0	0	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	0	16	0	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	299	1	0	0	0	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	2	16	0	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	300	0	0	0	0	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	0	16	0	40036	160000	100	40040	40040	40040	40040	40040
160204	40039	300	0	0	0	0	30	25	160108	100	160008	100	160020	500	1280132	40020	0	40039	40039	19977	6	19990	160120	200	160032	200	320064	40039	40039	1	1	160201	100	99	100	100	160000	100	0	0	0	0	1	1	1	10118	0	16	0	40036	160000	100	40040	40040	40040	40040	40040

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.2502

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

retire uop (01)	cycle (02)	03	mmu table walk instruction (07)	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)	5f	60	61	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)	ac	cf	d0	d2	l1i cache miss demand (d3)	d5	map dispatch bubble (d6)	d9	da	db	dd	fetch restart (de)	e0	ea	eb	? simd retires (ee)	? int retires (ef)	f5	f6	f7	f8	fd
160024	40039	300	0	0	0	0	0	46	25	160010	10	160000	10	160000	50	1280000	1	1	0	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10022	3	1	1	5	16	2	1	1	3	4	40036	20	6	160000	10	40040	40040	40040	40040	40040
160024	40039	300	0	0	0	486	0	46	25	160010	10	160000	10	160000	50	1280000	1	0	5	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10022	8	1	1	4	16	2	1	1	4	3	40036	20	6	160000	10	40040	40040	40040	40040	40040
160024	40039	300	0	0	0	882	0	46	25	160010	10	160000	10	160000	50	1280000	1	1	0	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40089	1	1	160021	10	9	10	10	160000	10	0	0	10022	3	2	1	4	16	2	1	1	4	3	40036	20	6	160000	10	40040	40040	40040	40040	40040
160024	40039	300	0	0	0	825	0	46	25	160010	10	160000	10	160000	50	1280000	1	0	5	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10022	8	3	1	4	16	2	1	1	3	4	40036	20	6	160000	10	40040	40040	40040	40040	40040
160024	40039	300	0	0	0	0	0	46	25	160010	10	160000	10	160000	50	1280000	1	0	0	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10022	3	1	1	4	16	2	1	1	4	3	40036	20	6	160000	10	40040	40040	40040	40040	40040
160024	40039	299	0	0	0	105	132	46	25	160010	10	160000	10	160000	50	1280000	1	1	5	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10022	3	3	1	4	16	2	1	1	4	3	40036	20	6	160000	10	40040	40040	40040	40040	40040
160024	40039	300	0	0	0	546	0	711	25	160010	10	160000	10	160000	50	1280000	1	1	0	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10024	3	3	2	4	16	4	2	2	4	4	40036	40	6	160000	10	40040	40040	40040	40040	40040
160024	40039	300	0	0	0	627	0	46	25	160010	10	160000	10	160000	50	1280000	2	0	0	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10024	6	4	2	4	16	4	1	2	4	4	40036	20	12	160000	10	40040	40040	40040	40040	40040
160024	40039	300	0	0	0	783	0	52	25	160010	10	160000	10	160000	50	1280000	0	0	0	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10022	3	3	1	10	16	2	1	1	3	4	40036	20	6	160000	10	40040	40040	40040	40040	40040
160024	40039	300	0	0	0	0	0	46	25	160010	10	160000	10	160000	50	1280000	1	1	5	40020	0	40039	40039	19996	3	20019	160010	20	160000	20	320000	40039	40039	1	1	160021	10	9	10	10	160000	10	0	0	10022	3	3	1	3	16	2	1	1	3	4	40036	20	6	160000	10	40040	40040	40040	40040	40040

RSHRN2 (4S)

Test 1: uops

1000 unrolls and 1 iteration

Test 2: Latency 1->1

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 3: Latency 1->2

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 4: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations

Test 5: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations