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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
| commit | d0c85e36e4de67af628d54e9ab577cc3fad7796a (patch) | |
| tree | f8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/gemma3:12b/kvm/1318091 | |
| parent | 7f4364274750eb8cb39a3e7493132fca1c01232e (diff) | |
| download | qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip | |
add deepseek and gemma results
Diffstat (limited to 'results/classifier/gemma3:12b/kvm/1318091')
| -rw-r--r-- | results/classifier/gemma3:12b/kvm/1318091 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/kvm/1318091 b/results/classifier/gemma3:12b/kvm/1318091 new file mode 100644 index 000000000..0dee74c9d --- /dev/null +++ b/results/classifier/gemma3:12b/kvm/1318091 @@ -0,0 +1,40 @@ + +Perfctr MSRs not available to Guest OS on AMD Phenom II + +The AMD Phenom(tm) II X4 965 Processor (family 16, model 4, stepping 3) has the 4 architecturally supported perf counters at MSRs. The selectors are c001000-c001003, and the counters are c001004-c001007. I've verified that the MSRs are there and working by manually setting the MSRs with msr-tools to count cycles. + +The processor does not support the extended perfctr or the perfctr_nb. These are in cpuid leaf 8000_0001. Qemu also sees that these cpuid flags are not set, when I try launching with -cpu host,perfctr_core,check. However, this flag is only for the extended perfctr MSRs, which also happen to map the original four counters at c0010200. + +When I run a Guest OS, that OS is unable to use the perf counter registers from c001000-7. rdmsr and wrmsr complete, but the results are always 0. By contrast, a wrmsr to one of the c0010200 registers causes a general protection fault (as it should, since those aren't supported). + +Kernel: 3.14.0-gentoo +Qemu: 2.0.0 (gentoo) and also with 2.0.50 (commit 06b4f00d5) +Qemu command: qemu-system-x86_64 -enable-kvm -cpu host -smp 8 -m 1024 -nographic -monitor /dev/pts/4 mnt/hdd.img +cat /proc/cpuinfo: +processor : 3 +vendor_id : AuthenticAMD +cpu family : 16 +model : 4 +model name : AMD Phenom(tm) II X4 965 Processor +stepping : 3 +cpu MHz : 800.000 +cache size : 512 KB +physical id : 0 +siblings : 4 +core id : 3 +cpu cores : 4 +apicid : 3 +initial apicid : 3 +fpu : yes +fpu_exception : yes +cpuid level : 5 +wp : yes +flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save +bogomips : 6803.79 +TLB size : 1024 4K pages +clflush size : 64 +cache_alignment : 64 +address sizes : 48 bits physical, 48 bits virtual +power management: ts ttp tm stc 100mhzsteps hwpstate + +thanks. \ No newline at end of file |