As part of the preparation to extend our code with paravirtual features
to speed up the guest execution I used the new kvmtrace code and took a
trace of a ubuntu_8.04 guest booting on a ubuntu_8.04 host.
The full log is ~800M but I wanted to post the instruction emulation
summary for all interested parties.
Based on that I want to compare the behavior later on when we use the PV
features.
I think about tracing segments like "early boot", "init scripts" and
some basic workloads separate, but for now the full boot is all I have.
@Hollis - I'll try contact you on IRC later today to discuss about PV
potential of SPRG0-SPRG3 (and maybe other SPR's)
mnemonic + count
---------------+-----------
mtspr | 1154660
mfspr | 1083036
wrteei | 347988
tlbwe | 296970
mfmsr | 253217
rfi | 210161
wrtee | 184312
mtmsr | 87671
tlbsx | 18837
lbz | 8497
lbzx | 4710
stb | 2144
mfdcr | 1696
stbx | 1550
mtdcr | 1282
sthbrx | 389
stwbrx | 224
iccci | 204
lwbrx | 84
lhbrx | 25
lwz | 1
stw | 1
sum = 3657659
mnemonic-spr + count
---------------+-----------
mfspr-SPRG3 | 208616
mtspr-SPRG4 | 164330
mtspr-SPRG0 | 164330
mtspr-SPRG1 | 164330
mfspr-SPRG0 | 164330
mfspr-SPRG1 | 164330
mfspr-SRR1 | 123952
mtspr-SRR0 | 123814
mtspr-SRR1 | 123814
mtspr-MMUCR | 111975
mfspr-MMUCR | 111973
mfspr-SRR0 | 105592
mtspr-SPRG5 | 102354
mtspr-SPRG7 | 102354
mfspr-PID | 102199
mfspr-DEAR | 67266
mtspr-DEC | 61666
mfspr-ESR | 34774
mtspr-TSR | 30833
mtspr-SPRG3 | 2696
mtspr-PID | 2144
mfspr-PVR | 4
mtspr-IVOR8 | 1
mtspr-IVOR9 | 1
mtspr-IVOR2 | 1
mtspr-IVOR3 | 1
mtspr-IVOR0 | 1
mtspr-IVOR1 | 1
mtspr-IVOR6 | 1
mtspr-IVOR7 | 1
mtspr-IVOR4 | 1
mtspr-IVOR5 | 1
mtspr-IVOR14 | 1
mtspr-IVOR15 | 1
mtspr-IVOR10 | 1
mtspr-IVOR11 | 1
mtspr-IVOR12 | 1
mtspr-IVOR13 | 1
mtspr-TCR | 1
mtspr-IVPR | 1
mtspr-TBWL | 1
mtspr-TBWU | 1
sum = 2237696
mnemonic-dcr + count
---------------+-----------
mtdcr-00C2 | 849
mfdcr-00C2 | 848
mfdcr-00C6 | 842
mtdcr-00C0 | 425
mtdcr-00C5 | 4
mtdcr-00C4 | 3
mfdcr-00C4 | 3
mfdcr-00C5 | 3
mtdcr-00C3 | 1
sum = 2978
mnemonic-tlb + count
---------------+-----------
tlbwe-PAGEID | 133491
tlbwe-ATTRIB | 86348
tlbwe-XLAT | 77131
sum = 296970
--
Grüsse / regards,
Christian Ehrhardt
IBM Linux Technology Center, Open Virtualization
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