Icestorm: STR (signed offset, Q) measurements

Code:

  str q0, [x6, #0x10]

Initialization

  mov x0, 0

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 0.001

Load/store unit issues: 1.000

SIMD/FP unit issues: 0.000

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule ldst uop (55)	dispatch ldst uop (58)	simd uops in schedulers (5a)	dispatch uop (78)	map ldst uop (7d)	map ldst uop inputs (80)	? int output thing (e9)	? ldst retires (ed)
1005	1341	1019	1	1018	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16883	1000	1000	2000	1	1000
1004	1039	1001	1	1000	1000	16901	1000	1000	2000	1	1000

Count: 8

Code:

  str q0, [x6, #0x10]
  str q0, [x6, #0x10]
  str q0, [x6, #0x10]
  str q0, [x6, #0x10]
  str q0, [x6, #0x10]
  str q0, [x6, #0x10]
  str q0, [x6, #0x10]
  str q0, [x6, #0x10]

Initialization

  mov x7, x6
  mov x8, x6
  mov x9, x6
  mov x10, x6
  mov x11, x6
  mov x12, x6
  mov x13, x6

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 1.0005

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule ldst uop (55)	dispatch int uop (56)	dispatch ldst uop (58)	int uops in schedulers (59)	simd uops in schedulers (5a)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map int uop inputs (7f)	map ldst uop inputs (80)	? int output thing (e9)	? ldst retires (ed)	? int retires (ef)
80205	80423	80119	101	80018	100	80001	300	1359974	80101	200	80008	200	160016	1	80000	100
80204	80037	80101	101	80000	100	80001	300	1359850	80101	200	80008	200	160016	1	80000	100
80204	80037	80101	101	80000	100	80001	300	1359850	80101	200	80008	200	160016	1	80000	100
80204	80037	80101	101	80000	100	80001	300	1359850	80101	200	80008	200	160016	1	80000	100
80204	80037	80101	101	80000	100	80001	300	1358326	80101	200	80008	200	160016	1	80000	100
80204	80039	80101	101	80000	100	80001	300	1359850	80101	200	80008	200	160016	1	80000	100
80204	80040	80101	101	80000	100	80001	300	1359850	80101	200	80008	200	160016	1	80000	100
80204	80037	80101	101	80000	100	80001	300	1359850	80101	200	80008	200	160016	1	80000	100
80204	80037	80101	101	80000	100	80001	300	1359904	80101	200	80008	200	160016	1	80000	100
80204	80037	80101	101	80000	100	80001	300	1359850	80101	200	80008	200	160016	1	80000	100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 1.0009

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule ldst uop (55)	dispatch int uop (56)	dispatch ldst uop (58)	int uops in schedulers (59)	simd uops in schedulers (5a)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map int uop inputs (7f)	map ldst uop inputs (80)	? int output thing (e9)	? ldst retires (ed)	? int retires (ef)
80025	80073	80028	11	80017	10	80003	30	1359968	80013	20	80010	20	160000	1	80000	10
80024	81043	80191	11	80180	10	80828	30	1384820	80838	20	80943	20	160656	1	80000	10
80024	80045	80011	11	80000	10	80000	30	1360007	80010	20	80000	20	160000	1	80000	10
80024	80045	80011	11	80000	10	80000	30	1360007	80010	20	80000	20	160000	1	80000	10
80024	80045	80011	11	80000	10	80000	30	1360007	80010	20	80000	20	160000	1	80000	10
80024	80045	80011	11	80000	10	80036	30	1361078	80046	20	80041	20	160082	1	80000	10
80024	80045	80011	11	80000	10	80000	30	1360007	80010	20	80000	20	160000	1	80000	10
80024	80045	80011	11	80000	10	80000	30	1360007	80010	20	80000	20	160000	1	80000	10
80024	80045	80011	11	80000	10	80000	30	1360007	80010	20	80000	20	160000	1	80000	10
80024	80045	80011	11	80000	10	80000	30	1360007	80010	20	80000	20	160000	1	80000	10

STR (signed offset, Q)

Test 1: uops

1000 unrolls and 1 iteration

Test 2: throughput

100 unrolls and 100 iterations

1000 unrolls and 10 iterations