# Virtual CPU to physical CPU allocation ratio which affects all CPU filters.# This configuration specifies a global ratio for CoreFilter. For# AggregateCoreFilter, it will fall back to this configuration value if no per-# aggregate setting found. NOTE: This can be set per-compute, or if set to 0.0,# the value set on the scheduler node(s) will be used and defaulted to 16.0# (floating point value)#cpu_allocation_ratio=0.0
1.2 参数配置
根据实际负载需求修改为合适的值，例如修改为
cpu_allocation_ratio=5.0
2. 内存虚拟化比率
2.1 配置参数描述与默认配置
# Virtual ram to physical ram allocation ratio which affects all ram filters.# This configuration specifies a global ratio for RamFilter. For# AggregateRamFilter, it will fall back to this configuration value if no per-# aggregate setting found. NOTE: This can be set per-compute, or if set to 0.0,# the value set on the scheduler node(s) will be used and defaulted to 1.5# (floating point value)#ram_allocation_ratio=0.0
2.2 参数配置
根据实际负载需求修改为合适的值，例如修改为
ram_allocation_ratio=1.0
3. 磁盘虚拟化比率
3.1 配置参数描述与默认配置
# This is the virtual disk to physical disk allocation ratio used by the# disk_filter.py script to determine if a host has sufficient disk space to fit# a requested instance. A ratio greater than 1.0 will result in over-# subscription of the available physical disk, which can be useful for more# efficiently packing instances created with images that do not use the entire# virtual disk,such as sparse or compressed images. It can be set to a value# between 0.0 and 1.0 in order to preserve a percentage of the disk for uses# other than instances.NOTE: This can be set per-compute, or if set to 0.0, the# value set on the scheduler node(s) will be used and defaulted to 1.0# (floating point value)#disk_allocation_ratio=0.0
