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

ROR (register, 64-bit)

Test 1: uops

Code:

  ror x0, x0, x1
  mov x0, 1
  mov x1, 2

(no loop instructions)

1000 unrolls and 1 iteration

Retires: 1.000

Issues: 1.000

Integer unit issues: 1.000

Load/store unit issues: 0.000

SIMD/FP unit issues: 0.000

retire uop (01)cycle (02)03l2 tlb miss data (0b)1e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)606d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst int alu (97)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
100410357036186225100010001000169160103510357283868100010002000103541111001100073141119371000100010361036103610361036
100410358006186225100010001000169161103510357283868100010002000103541111001100073141119371000100010361036103610361036
100410357036186225100010001000169161103510357283868100010002000103541111001100073141119371000100010361036103610361036
1004103581546186225100010001000169160103510357283868100010002000103541111001100073141119371000100010361036103610361036
100410358096186225100010001000169160103510357283868100010002000103541111001100073141119371000100010361036103610361036
100410357006186225100010001000169161103510357283868100010002000103541111001100073141119371000100010361036103610361036
100410358006186225100010001000169160103510357283868100010002000103541111001100073141119371000100010361036103610361036
100410357006186225100010001000169160103510357283868100010002000103541111001100073141119371000100010361036103610361036
100410357006186225100010001000169161103510357283868100010002000103541111001100073141119371000100010361036103610361036
100410358006186225100010001000169160103510357283868100010002000103541111001100073141119371000100010361036103610361036

Test 2: Latency 1->2

Code:

  ror x0, x0, x1
  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)031e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d cache writeback (a8)acc2cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102041003575061987725101001010010100886641496955100351003585803872210100102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036
102041003575661987725101001010010100886640496955100351003585803875010100102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886640496955100351003585803872210100102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886641496955100351003585803872210100102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036
102041003575661987725101001010010100886640496955100351003585803872210100102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886641496955100351003585803872210100102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886641496955100351003585803872210204102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036
102041003575061987725101001010010100886640496955100351003585803872210100102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036
102041003576061987725101001010010100886640496955100351003585803872210100102002020010035411110201100991001010010070071013711994110000101001003610036100361003610036
102041003575961987725101001010010100886640496955100351003585803872210100102002020010035411110201100991001010010000071013711994110000101001003610036100361003610036

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)03mmu table walk data (08)091e1f3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d cache writeback (a8)acbranch mispred nonspec (cb)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
10024100357500001459863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064044143994010000100101003610036100361003610036
1002410035750000619863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064044144994010000100101003610036100361003610036
1002410035750000829863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064044144994010000100101003610036100361003610036
1002410035750000619863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064044143994010000100101003610036100361003610036
1002410035750000619863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064044144994010000100101003610036100361003610036
10024100357500001059863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064034134994010000100101003610036100361003610036
1002410035750000619863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064044134994010000100101003610036100361003610036
1002410035750000829863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064034134994010000100101003610036100361003610036
1002410035750000619863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000064044134994010000100101003610036100361003610036
10024100357500006949863251001010010100108878449695510035100358602387401001010020200201003541111002110910100101000164034134994010000100101003610036100361003610036

Test 3: Latency 1->3

Code:

  ror x0, x1, x0
  mov x0, 1
  mov x1, 2

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)031e3a3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fld unit uop (a6)l1d cache writeback (a8)a9branch cond mispred nonspec (c5)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
102041003575120619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071023711994110000101001003610036100361003610036
10204100357500619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357500619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357500619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357500619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357500619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357500619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357530619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357500619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036
10204100357500619877251010010100101008866414969551003510035858038722101001020020200100354111102011009910010100100000071013711994110000101001003610036100361003610036

1000 unrolls and 10 iterations

Result (median cycles for code): 1.0035

retire uop (01)cycle (02)031e3f4d51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d cache writeback (a8)accfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
1002410035750619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064034122994010000100101003610036100361003610036
1002410035750619863251001010010100108878404969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
100241003575061986325100101001010010887840496955100351003586023874010010100202002010035411110021109101001010411764024122994010000100101003610036100361003610036
10024100357501249863251001010010100108878404969551003510035860238740100101002020020100354111100211091010010100064024123994010000100101003610036100361003610036
1002410035750619863251001010010100108878404969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
10024100357601459863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
1002410035750619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010101664024122994010000100101003610036100361003610036
1002410035750619863251001010010100108878404969551003510035860238740100101002020020100354111100211091010010101364024122994010000100101003610036100361003610036
10024100357601669863251001010010100108878404969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036
1002410035750619863251001010010100108878414969551003510035860238740100101002020020100354111100211091010010100064024122994010000100101003610036100361003610036

Test 4: throughput

Count: 8

Code:

  ror x0, x8, x9
  ror x1, x8, x9
  ror x2, x8, x9
  ror x3, x8, x9
  ror x4, x8, x9
  ror x5, x8, x9
  ror x6, x8, x9
  ror x7, x8, x9
  mov x8, 9
  mov x9, 10

(fused SUBS/B.cc loop)

100 unrolls and 100 iterations

Result (median cycles for code divided by count): 0.1673

retire uop (01)cycle (02)03mmu table walk instruction (07)l2 tlb miss instruction (0a)l2 tlb miss data (0b)1e3a3f51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d tlb access (a0)l1d cache writeback (a8)cfd5map dispatch bubble (d6)ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
8020413417100110693452580100801008010040050014910306133861338633233334180100802001602001338639118020110099100801001000051161019991338380000801001338713387133871338713387
80204133861001100345258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005118919991338380000801001338713387133871338713387
80204133861001100345258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005118919971338380000801001338713387133871338713387
8020413386100110210345258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005118919941338380000801001338713387133871338713387
8020413386100110165345258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005118919491338380000801001338713387133871338713387
80204133861001100345258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005118919991338380000801001338713387133871338713387
802041338610011003520258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005118919991338380000801001338713387133871338713387
80204133861001100345258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005118919491338380000801001338713387133871338713387
80204133861001100345258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005116919941338380000801001338713387133871338713387
802041338610011012345258010080100801004005001491030613386133863323333418010080200160200133863911802011009910080100100005118919991338380000801001338713387133871338713387

1000 unrolls and 10 iterations

Result (median cycles for code divided by count): 0.1671

retire uop (01)cycle (02)031e3f51schedule uop (52)schedule int uop (53)dispatch int uop (56)int uops in schedulers (59)60696a6d6emap stall dispatch (70)map rewind (75)map stall (76)dispatch uop (78)map int uop (7c)map int uop inputs (7f)8283flush restart other nonspec (84)85inst all (8c)inst branch (8d)inst branch taken (90)inst branch cond (94)inst int alu (97)9fl1d cache writeback (a8)accfd2d5map dispatch bubble (d6)d9ddfetch restart (de)e0? int output thing (e9)? int retires (ef)f5f6f7f8fd
8002413387100035258001080010800104000500491029113371133713330333488001080020160020133713911800211091080010100050230181981771336880000800101337213372133721337213372
800241337110001252580010800108001040005014910291133711337133303334880010800201600201337139118002110910800101010502301719818171336880000800101337213372133721337213372
80024133711000352580010800108001040005004910291133711337133303334880010800201600201337139118002110910800101000502301719817171336880000800101337213372133721337213372
80024133711000352580010800108001040005004910291133711337133303334880010800201600201337139118002110910800101040502301719817171336880000800101337213372133721337213372
80024133711000562580010800108001040005004910291133711337133303334880010800201600201337139118002110910800101080502301719101771336880000800101337213372133721337213372
8002413371100056258001080010800104000500491029113371133713330333488001080020160020133713911800211091080010100050210171981771336880000800101337213372133721337213372
80024133711000562580010800108001040005004910291133711337133303334880010800201600201337139118002110910800101000502301719617171336880000800101337213372133721337213372
80024133711000352580010800108001040005004910291133711337133303334880010800201600201337139118002110910800101010502301719617171336880000800101337213372133721337213372
8002413371100035258001080010800104000500491029113371133713330333488001080020160020133713911800211091080010100050230719817171336880000800101337213372133721337213372
80024133711000100258001080010800104000501491029113371133713330333488001080020160020133713911800211091080010100050230719101771336880000800101337213372133721337213372