meminfo For Node.js

Get memory information on Linux.

You need to set up the Rust development environment: rustup

Usage

You can use the meminfo function to get the fields and values from /proc/meminfo.

If you like to use the free command on Linux, you probably prefer to use the free function to get the objects which have the same fields as the free command does.

import { meminfo, free } from "node-meminfo";

console.log(meminfo());
/*
{
    MemTotal: 33638309888,
    MemFree: 6813110272,
    MemAvailable: 25217355776,
    Buffers: 45658112,
    Cached: 17956536320,
    SwapCached: 0,
    Active: 20752044032,
    Inactive: 4362379264,
    'Active(anon)': 7117885440,
    'Inactive(anon)': 199598080,
    'Active(file)': 13634158592,
    'Inactive(file)': 4162781184,
    Unevictable: 1343488,
    Mlocked: 1343488,
    SwapTotal: 0,
    SwapFree: 0,
    Dirty: 1826816,
    Writeback: 0,
    AnonPages: 6723411968,
    Mapped: 1297338368,
    Shmem: 205258752,
    Slab: 1387651072,
    SReclaimable: 1089368064,
    SUnreclaim: 298283008,
    KernelStack: 23089152,
    PageTables: 84766720,
    NFS_Unstable: 0,
    Bounce: 0,
    WritebackTmp: 0,
    CommitLimit: 16819154944,
    Committed_AS: 18899087360,
    VmallocTotal: 35184372087808,
    VmallocUsed: 0,
    VmallocChunk: 0,
    HardwareCorrupted: 0,
    AnonHugePages: 3951034368,
    ShmemHugePages: 0,
    ShmemPmdMapped: 0,
    CmaTotal: 0,
    CmaFree: 0,
    HugePages_Total: 0,
    HugePages_Free: 0,
    HugePages_Rsvd: 0,
    HugePages_Surp: 0,
    Hugepagesize: 2097152,
    DirectMap4k: 3071623168,
    DirectMap2M: 26895974400,
    DirectMap1G: 5368709120
}
*/

console.log(free());
/*
{ 
    mem: { 
        total: 33638309888,
        used: 7504060416,
        free: 6697676800,
        shared: 211382272,
        buff: 45658112,
        cache: 19390914560,
        available: 25142546432
    },
    swap: {
        total: 0,
        used: 0, 
        free: 0,
        cache: 0
    }
}
*/

License

MIT