Use cache mode 'writeback' for instances
This is an unsafe cache mode in production, but since this cloud only runs ephemeral test instances for CI, use cache mode writeback for maximum disk IO. Change-Id: I9c0f50c9182d0372e232f517cb431559eb98d233
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@ -35,6 +35,7 @@ nova_console_type: novnc
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# The intent is to allow flexible ratios (to a point) while using ram as the
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# bottom line limiting factor in determining a full host normally.
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nova_cpu_mode: host-passthrough
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nova_libvirt_disk_cachemodes: writeback
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nova_compute_ksm_enabled: True
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nova_cpu_allocation_ratio: 10
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nova_disk_allocation_ratio: 5
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