add launchpad bug reports without comments

1 files changed, 40 insertions, 0 deletions

diff --git a/results/scraper/launchpad-without-comments/1774605 b/results/scraper/launchpad-without-comments/1774605
new file mode 100644
index 000000000..7aab34faa
--- /dev/null
+++ b/results/scraper/launchpad-without-comments/1774605
@@ -0,0 +1,40 @@
+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
\ No newline at end of file