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53 lines
2.0 KiB
Plaintext
53 lines
2.0 KiB
Plaintext
SHORT QPI Link Layer data
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EVENTSET
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FIXC0 INSTR_RETIRED_ANY
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FIXC1 CPU_CLK_UNHALTED_CORE
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FIXC2 CPU_CLK_UNHALTED_REF
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SBOX0C0 DIRECT2CORE_SUCCESS_RBT_HIT
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SBOX1C0 DIRECT2CORE_SUCCESS_RBT_HIT
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SBOX2C0 DIRECT2CORE_SUCCESS_RBT_HIT
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SBOX0C1 TXL_FLITS_G0_DATA
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SBOX1C1 TXL_FLITS_G0_DATA
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SBOX2C1 TXL_FLITS_G0_DATA
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SBOX0C2 TXL_FLITS_G0_NON_DATA
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SBOX1C2 TXL_FLITS_G0_NON_DATA
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SBOX2C2 TXL_FLITS_G0_NON_DATA
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SBOX0C3 SBOX_CLOCKTICKS
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SBOX1C3 SBOX_CLOCKTICKS
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SBOX2C3 SBOX_CLOCKTICKS
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SBOX0FIX QPI_RATE
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SBOX1FIX QPI_RATE
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SBOX2FIX QPI_RATE
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METRICS
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Runtime (RDTSC) [s] time
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Runtime unhalted [s] FIXC1*inverseClock
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Clock [MHz] 1.E-06*(FIXC1/FIXC2)/inverseClock
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CPI FIXC1/FIXC0
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QPI Speed Link 0 [GT/s] ((SBOX0C3)/time)*inverseClock*(8/1000)
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QPI Speed Link 1 [GT/s] ((SBOX1C3)/time)*inverseClock*(8/1000)
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QPI Speed Link 2 [GT/s] ((SBOX2C3)/time)*inverseClock*(8/1000)
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QPI Rate Link 0 [GT/s] 1.E-09*SBOX0FIX
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QPI Rate Link 1 [GT/s] 1.E-09*SBOX1FIX
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QPI Rate Link 2 [GT/s] 1.E-09*SBOX2FIX
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data from QPI to LLC [MByte] 1.E-06*(SBOX0C0+SBOX1C0+SBOX2C0)*8
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QPI data volume [MByte] 1.E-06*(SBOX0C1+SBOX1C1+SBOX2C1)*8
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QPI data bandwidth [MByte/s] 1.E-06*(SBOX0C1+SBOX1C1+SBOX2C1)*8/time
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QPI link volume [MByte] 1.E-06*(SBOX0C1+SBOX1C1+SBOX2C1+SBOX0C2+SBOX1C2+SBOX2C2)*8
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QPI link bandwidth [MByte/s] 1.E-06*(SBOX0C1+SBOX1C1+SBOX2C1+SBOX0C2+SBOX1C2+SBOX2C2)*8/time
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LONG
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Formulas:
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QPI Speed Link 0/1/2 [GT/s] = ((SBOX_CLOCKTICKS)/time)*clock*(8/1000)
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QPI Rate Link 0/1/2 [GT/s] = 1.E-09*(QPI_RATE)
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data from QPI to LLC [MByte] = 1.E-06*(sum(DIRECT2CORE_SUCCESS_RBT_HIT)*64)
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QPI data volume [MByte] = 1.E-06*(sum(TXL_FLITS_G0_DATA)*8)
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QPI data bandwidth [MByte/s] = 1.E-06*(sum(TXL_FLITS_G0_DATA)*8)/runtime
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QPI link volume [MByte] = 1.E-06*((sum(TXL_FLITS_G0_DATA)+sum(TXL_FLITS_G0_NON_DATA))*8)
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QPI link bandwidth [MByte/s] = 1.E-06*((sum(TXL_FLITS_G0_DATA)+sum(TXL_FLITS_G0_NON_DATA))*8)/runtime
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--
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The Intel QPI Link Layer is responsible for packetizing requests from the caching agent (CBOXes)
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on the way out to the system interface.
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