RDSEED (R64)

Operands

• Operand 1 (w): Register (RAX, RCX, RDX, RBX, RSP, RBP, RSI, RDI, R8, R9, R10, R11, R12, R13, R14, R15)
• Operand 2 (w, suppressed): Flags (AF: w, CF: w, OF: w, PF: w, SF: w, ZF: w)

Available performance data

• Arrow Lake-P
• Arrow Lake-E
• Meteor Lake-P
• Meteor Lake-E
• Emerald Rapids
• Alder Lake-P
• Alder Lake-E
• Rocket Lake
• Tiger Lake
• Ice Lake
• Cascade Lake
• Cannon Lake
• Skylake-X
• Coffee Lake
• Kaby Lake
• Skylake
• Broadwell
• Tremont
• Goldmont Plus
• Goldmont
• AMD Zen 5
• AMD Zen 4
• AMD Zen 3
• AMD Zen 2
• AMD Zen+

Arrow Lake-P

• Measurements
• Throughput
  • Computed from the port usage: 2.67
  • Measured (loop): 1572.93
  • Measured (unrolled): 1573.78
• Number of μops
  • Executed: 9
  • Retire slots: 13
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 13
  • Requires the complex decoder (13 other instructions can be decoded with simple decoders in the same cycle)
• Port usage: 13*ALU+1*JMP+1*LD+1*SHIFT+1*SLOW

Arrow Lake-E

• Measurements
• Throughput
  • Measured (loop): 1566.42
  • Measured (unrolled): 1464.50
• Number of μops
  • Executed: 13
  • Microcode Sequencer (MS): 13
  • Requires the complex decoder

Meteor Lake-P

• Measurements
• Throughput
  • Computed from the port usage: 7.00
  • Measured (loop): 1843.43
  • Measured (unrolled): 1842.27
• Number of μops
  • Executed: 21
  • Retire slots: 23
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 21
  • Requires the complex decoder (1 other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 2*p0+3*p015+3*p056+5*p06+7*p1+1*p23A+3*p5

Meteor Lake-E

• Measurements
• Throughput
  • Measured (loop): 1457.65
  • Measured (unrolled): 1440.97
• Number of μops
  • Executed: 12
  • Microcode Sequencer (MS): 11
  • Requires the complex decoder

Emerald Rapids

• Measurements
• Throughput
  • Computed from the port usage: 7.00
  • Measured (loop): 607.83
  • Measured (unrolled): 619.97
• Number of μops
  • Executed: 21
  • Retire slots: 23
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 23
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 2*p0+3*p015+3*p056+5*p06+7*p1+1*p23A+3*p5

Alder Lake-P

• Measurements
• Throughput
  • Computed from the port usage: 7.00
  • Measured (loop): 1375.22
  • Measured (unrolled): 1373.93
• Number of μops
  • Executed: 21
  • Retire slots: 23
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 23
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 2*p0+3*p015+3*p056+5*p06+7*p1+1*p23A+3*p5

Alder Lake-E

• Measurements
• Throughput
  • Measured (loop): 1395.67
  • Measured (unrolled): 1224.33
• Number of μops
  • Executed: 19
  • Microcode Sequencer (MS): 18
  • Requires the complex decoder

Rocket Lake

• Measurements
• Throughput
  • Computed from the port usage: 8.00
  • Measured (loop): 1425.43
  • Measured (unrolled): 1425.35
• Number of μops
  • Executed: 33
  • Retire slots: 35
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 35
  • Requires the complex decoder (4 other instructions can be decoded with simple decoders in the same cycle)
• Port usage: 2*p0+4*p015+5*p0156+11*p06+7*p1+3*p5+1*p78

Tiger Lake

• Measurements
• Throughput
  • Computed from the port usage: 14.50
  • Measured (loop): 13555.00
  • Measured (unrolled): 13817.17
• Number of μops
  • Executed: 81
  • Retire slots: 65
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 92
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 4*p0+6*p015+2*p0156+24*p06+13*p1+1*p23+9*p49+9*p5+12*p78

Ice Lake

• Measurements
• Throughput
  • Computed from the port usage: 19.00
  • Measured (loop): 1548.98
  • Measured (unrolled): 1548.67
• Number of μops
  • Executed: 58
  • Retire slots: 55
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 64
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 7*p0+1*p01+19*p06+19*p1+11*p5+1*p78

Cascade Lake

• Measurements
• Throughput
  • Computed from the port usage: 4.00
  • Measured (loop): 606.85
  • Measured (unrolled): 608.12
• Number of μops
  • Executed: 16
  • Retire slots: 16
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 16
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 3*p015+1*p0156+8*p06+2*p1+1*p23

Cannon Lake

• Measurements
• Throughput
  • Computed from the port usage: 2.75
  • Measured (loop): 881.20
  • Measured (unrolled): 878.20
• Number of μops
  • Executed: 12
  • Retire slots: 14
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 14
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 1*p015+3*p0156+5*p06+2*p1+1*p23

Skylake-X

• Measurements
• Throughput
  • Computed from the port usage: 4.50
  • Measured (loop): 574.23
  • Measured (unrolled): 574.40
• Number of μops
  • Executed: 16
  • Retire slots: 16
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 16
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 3*p015+1*p0156+9*p06+2*p1+1*p23

Coffee Lake

• Measurements
• Throughput
  • Computed from the port usage: 1868.50
  • Measured (loop): 5698.85
  • Measured (unrolled): 5699.20
• Number of μops
  • Executed: 8446
  • Retire slots: 8416
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 8466
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 1805*p0+1*p01+1932*p06+1783*p1+1160*p23+10*p237+14*p4+1740*p5

Kaby Lake

• Measurements
• Throughput
  • Computed from the port usage: 3199.50
  • Measured (loop): 7225.97
  • Measured (unrolled): 7221.58
• Number of μops
  • Executed: 14394
  • Retire slots: 14350
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 14492
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 3116*p0+3283*p06+3006*p1+1995*p23+7*p237+14*p4+2978*p5

Skylake

• Measurements
• Throughput
  • Computed from the port usage: 2457.50
  • Measured (loop): 6138.25
  • Measured (unrolled): 6138.60
• Number of μops
  • Executed: 11095
  • Retire slots: 11046
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 11189
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 2377*p0+4*p01+4*p05+2538*p06+2330*p1+3*p15+1529*p23+10*p237+15*p4+2291*p5

Broadwell

• Measurements
• Throughput
  • Computed from the port usage: 20.50
  • Measured (loop): 9223372036854775808.00
  • Measured (unrolled): 2085.80
• Number of μops
  • Executed: 76
  • Retire slots: 59
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 104
  • Requires the complex decoder (no other instruction can be decoded with simple decoders in the same cycle)
• Port usage: 3*p0+38*p06+19*p1+7*p4+16*p5

Tremont

• Measurements
• Throughput
  • Measured (loop): 9223372036854775808.00
  • Measured (unrolled): 3523.60
• Number of μops
  • Executed: 59
  • Microcode Sequencer (MS): 59
  • Requires the complex decoder

Goldmont Plus

• Measurements
• Throughput
  • Measured (loop): 9223372036854775808.00
  • Measured (unrolled): 1929.20
• Number of μops
  • Executed: 16
  • Microcode Sequencer (MS): 16
  • Requires the complex decoder

Goldmont

• Measurements
• Throughput
  • Measured (loop): 9223372036854775808.00
  • Measured (unrolled): 3199.27
• Number of μops
  • Executed: 17
  • Microcode Sequencer (MS): 17
  • Requires the complex decoder

AMD Zen 5

• Measurements
• Throughput
  • Measured (loop): 91967.92
  • Measured (unrolled): 92367.70
• Number of μops
  • Executed: 31
• Documentation
• Latency: NA
• Throughput: NA
• Number of μops: ucode
• Port usage: ucode

AMD Zen 4

• Measurements
• Throughput
  • Measured (loop): 84090.00
  • Measured (unrolled): 83787.45
• Number of μops
  • Executed: 30
• Documentation
• Latency: variable
• Throughput: variable
• Number of μops: ucode

AMD Zen 3

• Measurements
• Throughput
  • Measured (loop): 5888.45
  • Measured (unrolled): 5855.48
• Number of μops
  • Executed: 31
• Documentation
• Latency: variable
• Throughput: variable
• Number of μops: ucode

AMD Zen 2

• Measurements
• Throughput
  • Measured (loop): 3608.90
  • Measured (unrolled): 3613.97
• Number of μops
  • Executed: 20
• Documentation
• Latency: variable
• Throughput: variable
• Number of μops: ucode

AMD Zen+

• Measurements
• Throughput
  • Measured (loop): 2536.28
  • Measured (unrolled): 2535.53
• Number of μops
  • Executed: 19
• Documentation
• Latency: variable
• Throughput: variable
• Number of μops: ucode