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+performance: 0.899
+architecture: 0.816
+register: 0.618
+kernel: 0.590
+device: 0.571
+graphic: 0.532
+files: 0.475
+risc-v: 0.423
+vnc: 0.406
+x86: 0.400
+virtual: 0.346
+permissions: 0.314
+network: 0.262
+boot: 0.243
+PID: 0.241
+ppc: 0.238
+socket: 0.234
+TCG: 0.204
+arm: 0.194
+user-level: 0.189
+semantic: 0.189
+hypervisor: 0.187
+peripherals: 0.178
+VMM: 0.157
+debug: 0.114
+mistranslation: 0.111
+assembly: 0.101
+KVM: 0.037
+i386: 0.018
+
+QEMU does not support Westmere (Intel Xeon) CPU model
+
+Setting the CPU model to Westmere (Intel Xeon server CPU) is not possible.
+
+libvirt uses 'core2duo' as fallback:
+https://bugzilla.redhat.com/show_bug.cgi?id=708927
+
+
+$ qemu -cpu ?
+x86           [n270]
+x86         [athlon]
+x86       [pentium3]
+x86       [pentium2]
+x86        [pentium]
+x86            [486]
+x86        [coreduo]
+x86          [kvm32]
+x86         [qemu32]
+x86          [kvm64]
+x86       [core2duo]
+x86         [phenom]
+x86         [qemu64]
+
+$ qemu --version
+QEMU emulator version 1.0 (Debian 1.0+dfsg-3), Copyright (c) 2003-2008 Fabrice Bellard
+
+An application test with high cpu load gives the timing statistics give:
+                                              
+
+                                           bare metal                       virtual                           percent
+
+X4560 cpu                            50m28s                          54m0s                          107%
+
+X5690 (westermere)         29m20s                          38m0s                         134%
+
+
+
+Westmere seems to be available in the latest version of QEMU:
+$ qemu-system-x86_64 -cpu ? | grep Westmere
+x86         Westmere  Westmere E56xx/L56xx/X56xx (Nehalem-C)
+==> Setting status to "Fix released" now.
+