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https://www.zabbix.com/documentation/3.4/manual/appendix/items/vm.memory.size_params内置变量https://www.zabbix.com/documentation/3.4/manual/appendix/macros/supported_by_location内存Platform available usedLinux<3.14 free + buffers + cached total - free zabbix_get -s 10.0.3.101 -k vm.memory.size[available]zabbix_get -s 10.0.3.101 -k vm.memory.size[free]