Module proc_sys_parser::meminfo

source ·
Expand description

Read data from /proc/meminfo into the struct ProcMemInfo.

The processor of /proc/meminfo takes the values for the memory areas specified, and puts them in the struct ProcMemInfo. The values are in kilobytes (kB), just like the values in the original /proc/meminfo file.

Here is an example obtaining the data from /proc/meminfo:

use proc_sys_parser::{meminfo, meminfo::ProcMemInfo};

let proc_meminfo = meminfo::read();

println!("{:#?}", proc_meminfo);

Example output:

ProcMemInfo {
    memtotal: 3997876,
    memfree: 2415136,
    memavailable: 3654096,
    buffers: 37492,
    cached: 1305568,
    swapcached: 0,
    active: 880772,
    inactive: 549432,
    active_anon: 86968,
    inactive_anon: 5196,
    active_file: 793804,
    inactive_file: 544236,
    unevictable: 4000,
    mlocked: 0,
    swaptotal: 0,
    swapfree: 0,
    zswap: 0,
    zswapped: 0,
    dirty: 0,
    writeback: 0,
    anonpages: 91144,
    mapped: 140948,
    shmem: 5020,
    kreclaimable: 56680,
    slab: 93916,
    sreclaimable: 56680,
    sunreclaim: 37236,
    kernelstack: 3256,
    shadowcallstack: 828,
    pagetables: 2884,
    secpagetables: 0,
    nfs_unstable: 0,
    bounce: 0,
    writebacktmp: 0,
    commitlimit: 1998936,
    committed_as: 944240,
    vmalloctotal: 133141626880,
    vmallocused: 14124,
    vmallocchunk: 0,
    percpu: 2280,
    hardwarecorrupted: 0,
    anonhugepages: 4096,
    shmemhugepages: 0,
    shmempmdmapped: 0,
    filehugepages: 0,
    filepmdmapped: 0,
    cmatotal: 32768,
    cmafree: 31232,
    hugepages_total: 0,
    hugepages_free: 0,
    hugepages_rsvd: 0,
    hugepages_surp: 0,
    hugepagesize: 2048,
    hugetlb: 0
}

(edited for readability)

If you want to change the path and/or file that is read for ProcMemInfo, which is /proc/meminfo by default, use:

use proc_sys_parser::{meminfo, meminfo::{ProcMemInfo, Builder}};

let proc_meminfo = Builder::new().file_name("/myproc/meminfo").read();

Structs

Functions

  • read
    The main function for building a ProcMemInfo struct with current data. This uses the Builder pattern, which allows settings such as the filename to specified.