Icestorm: USQADD (scalar, B) measurements

Code:

  usqadd b0, b1

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: 0.001

Load/store unit issues: 0.000

SIMD/FP unit issues: 1.000

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	dispatch simd uop (57)	ldst uops in schedulers (5b)	dispatch uop (78)	map simd uop (7e)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)
1004	3084	1009	1	1008	1033	75905	1000	1000	2000	1	1000
1004	3033	1001	1	1000	1000	75905	1000	1000	2000	1	1000
1004	3084	1009	1	1008	1033	75905	1000	1000	2000	1	1000
1004	3033	1001	1	1000	1000	75905	1000	1000	2076	1	1000
1004	3033	1001	1	1000	1000	76451	1033	1040	2000	1	1000
1004	3033	1001	1	1000	1000	75905	1000	1000	2000	1	1000
1004	3033	1001	1	1000	1000	75905	1000	1000	2000	1	1000
1004	3033	1001	1	1000	1000	75905	1000	1000	2000	1	1000
1004	3033	1001	1	1000	1000	75905	1000	1000	2000	1	1000
1004	3033	1001	1	1000	1000	75905	1000	1000	2000	1	1000

Test 2: Latency 1->1

Code:

  usqadd b0, b1

Initialization

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

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0033

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

retire uop (01)	cycle (02)	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)	dispatch uop (78)	map int uop (7c)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10006	200	20012	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20010	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10006	200	20012	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0033

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

retire uop (01)	cycle (02)	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)	dispatch uop (78)	map int uop (7c)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	70	768905	10020	20	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	65	769451	10053	20	10041	20	20078	11	10000	10

Test 3: Latency 1->2

Code:

  usqadd b0, b0

Initialization

  movi v0.16b, 1

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 3.0033

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

retire uop (01)	cycle (02)	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)	dispatch uop (78)	map int uop (7c)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100
10204	30033	10101	101	10000	100	10000	300	768905	10100	200	10004	200	20008	1	10000	100

1000 unrolls and 10 iterations

Result (median cycles for code): 3.0033

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	dispatch int uop (56)	dispatch simd uop (57)	dispatch ldst uop (58)	int uops in schedulers (59)	simd uops in schedulers (5a)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20096	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10
10024	30033	10021	21	10000	20	10000	0	70	0	768905	10020	20	0	10000	20	20000	11	10000	10

Test 4: throughput

Count: 8

Code:

  movi v0.16b, 0
  usqadd b0, b8
  movi v1.16b, 0
  usqadd b1, b8
  movi v2.16b, 0
  usqadd b2, b8
  movi v3.16b, 0
  usqadd b3, b8
  movi v4.16b, 0
  usqadd b4, b8
  movi v5.16b, 0
  usqadd b5, b8
  movi v6.16b, 0
  usqadd b6, b8
  movi v7.16b, 0
  usqadd b7, b8

Initialization

  movi v8.16b, 9

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.5011

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

retire uop (01)	cycle (02)	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)	dispatch uop (78)	map int uop (7c)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
160204	40449	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40117	80110	101	80009	100	80013	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40086	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40086	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40086	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40086	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40086	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40086	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40086	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100
160204	40086	80109	101	80008	100	80012	300	320052	80112	200	80012	200	160024	1	160000	100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.5053

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	dispatch int uop (56)	dispatch simd uop (57)	dispatch ldst uop (58)	int uops in schedulers (59)	simd uops in schedulers (5a)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map ldst uop (7d)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
160024	43870	80019	11	80008	10	80012	0	30	0	320052	80022	20	0	80012	20	160000	1	160000	10
160024	41205	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160000	1	160000	10
160024	40434	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160000	1	160000	10
160024	40440	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160000	1	160000	10
160024	40421	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160000	1	160000	10
160024	40427	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160000	1	160000	10
160024	40413	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160000	1	160000	10
160024	40423	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160000	1	160000	10
160024	40391	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160000	1	160000	10
160024	40412	80011	11	80000	10	80000	0	30	0	320000	80010	20	0	80000	20	160098	1	160000	10

Test 5: throughput

Count: 16

Code:

  usqadd b0, b16
  usqadd b1, b16
  usqadd b2, b16
  usqadd b3, b16
  usqadd b4, b16
  usqadd b5, b16
  usqadd b6, b16
  usqadd b7, b16
  usqadd b8, b16
  usqadd b9, b16
  usqadd b10, b16
  usqadd b11, b16
  usqadd b12, b16
  usqadd b13, b16
  usqadd b14, b16
  usqadd b15, b16

Initialization

  movi v16.16b, 17

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.5002

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	schedule ldst uop (55)	dispatch int uop (56)	dispatch simd uop (57)	int uops in schedulers (59)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map simd uop (7e)	map int uop inputs (7f)	map simd uop inputs (81)	? int output thing (e9)	? simd retires (ee)	? int retires (ef)
160204	80060	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100
160205	80080	160143	101	160042	0	100	160054	300	640036	160108	200	160012	200	320028	1	160000	100
160204	80035	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100
160204	80035	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100
160204	80035	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100
160204	80035	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100
160204	80035	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100
160204	80035	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100
160204	80035	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100
160204	80035	160105	101	160004	0	100	160008	300	640036	160108	200	160012	200	320024	1	160000	100

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.5002

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

retire uop (01)	cycle (02)	schedule uop (52)	schedule int uop (53)	schedule simd uop (54)	schedule ldst uop (55)	dispatch int uop (56)	dispatch simd uop (57)	int uops in schedulers (59)	ldst uops in schedulers (5b)	dispatch uop (78)	map int uop (7c)	map simd uop (7e)	map int uop inputs (7f)	map ldst uop inputs (80)	map simd uop inputs (81)	? int output thing (e9)	? ldst retires (ed)	? simd retires (ee)	? int retires (ef)
160024	80505	160015	11	160004	0	10	160008	30	640000	160010	20	160000	20	0	320000	1	0	160000	10
160024	80095	160011	11	160000	0	10	160000	30	640000	160010	20	160000	20	0	320000	1	0	160000	10
160024	80040	160011	11	160000	0	10	160000	30	640000	160010	20	160000	20	0	320000	1	0	160000	10
160024	80040	160011	11	160000	0	10	160000	30	640000	160010	20	160000	20	0	320000	1	0	160000	10
160024	80040	160011	11	160000	0	10	160000	30	640000	160010	20	160000	20	0	320000	1	0	160000	10
160024	80040	160011	11	160000	0	10	160000	30	640000	160010	20	160000	20	0	320000	1	0	160000	10
160024	80040	160011	11	160000	0	10	160000	30	640212	160065	20	160063	20	0	320000	1	0	160000	10
160024	80040	160011	11	160000	0	10	160000	30	640000	160010	20	160000	20	0	320000	1	0	160000	10
160024	80040	160011	11	160000	0	10	160000	30	640000	160010	20	160000	20	0	320000	1	0	160000	10
160024	80040	160011	11	160000	0	10	160000	30	640000	160010	20	160000	20	0	320000	1	0	160000	10

USQADD (scalar, B)

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