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getSystemConfigs - 获取系统配置信息
System.getSystemConfigs( [types] )
System
获取系统配置信息
参数名 | 参数类型 | 默认值 | 描述 | 是否必填 |
---|---|---|---|---|
types | string | all | 系统模块类别 | 否 |
types 参数可选值如下表:
可选值 | 描述 |
---|---|
kernel | 内核模块信息 |
vm | 虚拟内存信息 |
fs | 文件系统信息 |
debug | 调试信息 |
dev | 设备信息 |
abi | 应用程序二进制接口信息 |
net | 网络信息 |
all | 所有信息 |
返回系统配置信息
如果出错则抛异常,并输出错误信息,可以通过 getLastErrMsg() 获取错误信息或通过 getLastError() 获取错误码。关于错误处理可以参考常见错误处理指南。
常见错误可参考错误码。
v3.2 及以上版本
获取系统虚拟内存信息
> System.getSystemConfigs( "vm" ) { "vm.admin_reserve_kbytes": "8192", "vm.block_dump": "0", "vm.compact_unevictable_allowed": "1", "vm.dirty_background_bytes": "0", "vm.dirty_background_ratio": "10", "vm.dirty_bytes": "0", "vm.dirty_expire_centisecs": "3000", "vm.dirty_ratio": "20", "vm.dirty_writeback_centisecs": "500", "vm.dirtytime_expire_seconds": "43200", "vm.drop_caches": "0", "vm.extfrag_threshold": "500", "vm.hugepages_treat_as_movable": "0", "vm.hugetlb_shm_group": "0", "vm.laptop_mode": "0", "vm.legacy_va_layout": "0", "vm.lowmem_reserve_ratio": "256 256 32 1", "vm.max_map_count": "65530", "vm.memory_failure_early_kill": "0", "vm.memory_failure_recovery": "1", "vm.min_free_kbytes": "67584", "vm.min_slab_ratio": "5", "vm.min_unmapped_ratio": "1", "vm.mmap_min_addr": "65536", "vm.nr_hugepages": "0", "vm.nr_hugepages_mempolicy": "0", "vm.nr_overcommit_hugepages": "0", "vm.nr_pdflush_threads": "0", "vm.numa_zonelist_order": "default", "vm.oom_dump_tasks": "1", "vm.oom_kill_allocating_task": "0", "vm.overcommit_kbytes": "0", "vm.overcommit_memory": "0", "vm.overcommit_ratio": "50", "vm.page-cluster": "3", "vm.panic_on_oom": "0", "vm.percpu_pagelist_fraction": "0", "vm.stat_interval": "1", "vm.swappiness": "60", "vm.user_reserve_kbytes": "131072", "vm.vfs_cache_pressure": "100", "vm.zone_reclaim_mode": "0" }