1 files changed, 127 insertions, 0 deletions
diff --git a/results/classifier/118/KVM/1774605 b/results/classifier/118/KVM/1774605
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+++ b/results/classifier/118/KVM/1774605
@@ -0,0 +1,127 @@
+KVM: 0.834
+mistranslation: 0.821
+ppc: 0.809
+hypervisor: 0.804
+graphic: 0.803
+user-level: 0.797
+permissions: 0.777
+peripherals: 0.768
+register: 0.767
+TCG: 0.750
+performance: 0.746
+device: 0.742
+boot: 0.729
+x86: 0.714
+virtual: 0.713
+assembly: 0.712
+kernel: 0.707
+risc-v: 0.706
+socket: 0.702
+semantic: 0.701
+vnc: 0.700
+arm: 0.697
+architecture: 0.682
+debug: 0.681
+files: 0.680
+network: 0.652
+PID: 0.652
+VMM: 0.624
+i386: 0.594
+
+PowerPC guest does not emulate L2 and L3 cache for KVM vCPUs
+
+PowerPC KVM guest does not emulate L2 and L2 caches for vCPU, it would be good to have them enabled if not any known issues/limitation already with PowerPC.
+
+Host Env:
+kernel: 4.17.0-rc7-00045-g0512e0134582
+qemu: v2.12.0-923-gc181ddaa17-dirty
+#libvirtd -V
+libvirtd (libvirt) 4.4.0
+
+
+Guest Kernel:
+# uname -a
+Linux atest-guest 4.17.0-rc7-00045-g0512e0134582 #9 SMP Fri Jun 1 02:55:50 EDT 2018 ppc64le ppc64le ppc64le GNU/Linux
+
+Guest:
+# lscpu
+Architecture:        ppc64le
+Byte Order:          Little Endian
+CPU(s):              16
+On-line CPU(s) list: 0-15
+Thread(s) per core:  8
+Core(s) per socket:  2
+Socket(s):           1
+NUMA node(s):        1
+Model:               2.1 (pvr 004b 0201)
+Model name:          POWER8 (architected), altivec supported
+Hypervisor vendor:   KVM
+Virtualization type: para
+L1d cache:           64K
+L1i cache:           32K
+NUMA node0 CPU(s):   0-15
+
+
+
+background: x86 enabling cpu L2 cache bydefault and L3 cache on demand for kvm guest
+and claims performance improvement as vcpus can be 
+benefited with lesser `vmexits due to guest send IPIs.` with L3 cache enabled, below was patch for same.
+
+https://git.qemu.org/?p=qemu.git;a=commit;h=14c985cffa6cb177fc01a163d8bcf227c104718c
+
+Guest xml(cpu portion):
+
+...
+   <vcpu placement='static' current='16'>32</vcpu>
+  <resource>
+    <partition>/machine</partition>
+  </resource>
+  <os>
+    <type arch='ppc64le' machine='pseries-2.13'>hvm</type>
+    <kernel>/home/kvmci/linux/vmlinux</kernel>
+    <cmdline>root=/dev/sda2 rw console=tty0 console=ttyS0,115200 init=/sbin/init initcall_debug</cmdline>
+    <boot dev='hd'/>
+  </os>
+  <cpu mode='host-passthrough' check='none'>
+    <topology sockets='2' cores='2' threads='8'/>
+  </cpu>
+...
+
+
+Host lscpu:
+# lscpu
+Architecture:         ppc64le
+Byte Order:           Little Endian
+CPU(s):               80
+On-line CPU(s) list:  0,8,16,24,32,40,48,56,64,72
+Off-line CPU(s) list: 1-7,9-15,17-23,25-31,33-39,41-47,49-55,57-63,65-71,73-79
+Thread(s) per core:   1
+Core(s) per socket:   5
+Socket(s):            2
+NUMA node(s):         2
+Model:                2.1 (pvr 004b 0201)
+Model name:           POWER8E (raw), altivec supported
+CPU max MHz:          3690.0000
+CPU min MHz:          2061.0000
+L1d cache:            64K
+L1i cache:            32K
+L2 cache:             512K
+L3 cache:             8192K
+NUMA node0 CPU(s):    0,8,16,24,32
+NUMA node1 CPU(s):    40,48,56,64,72
+
+
+The QEMU project is currently considering to move its bug tracking to
+another system. For this we need to know which bugs are still valid
+and which could be closed already. Thus we are setting older bugs to
+"Incomplete" now.
+
+If you still think this bug report here is valid, then please switch
+the state back to "New" within the next 60 days, otherwise this report
+will be marked as "Expired". Or please mark it as "Fix Released" if
+the problem has been solved with a newer version of QEMU already.
+
+Thank you and sorry for the inconvenience.
+
+[Expired for QEMU because there has been no activity for 60 days.]
+