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'use strict';
// @ts-check
// ==================================================================================
// memory.js
// ----------------------------------------------------------------------------------
// Description: System Information - library
// for Node.js
// Copyright: (c) 2014 - 2022
// Author: Sebastian Hildebrandt
// ----------------------------------------------------------------------------------
// License: MIT
// ==================================================================================
// 5. Memory
// ----------------------------------------------------------------------------------
const os = require('os');
const exec = require('child_process').exec;
const execSync = require('child_process').execSync;
const util = require('./util');
const fs = require('fs');
let _platform = process.platform;
const _linux = (_platform === 'linux' || _platform === 'android');
const _darwin = (_platform === 'darwin');
const _windows = (_platform === 'win32');
const _freebsd = (_platform === 'freebsd');
const _openbsd = (_platform === 'openbsd');
const _netbsd = (_platform === 'netbsd');
const _sunos = (_platform === 'sunos');
const OSX_RAM_manufacturers = {
'0x014F': 'Transcend Information',
'0x2C00': 'Micron Technology Inc.',
'0x802C': 'Micron Technology Inc.',
'0x80AD': 'Hynix Semiconductor Inc.',
'0x80CE': 'Samsung Electronics Inc.',
'0xAD00': 'Hynix Semiconductor Inc.',
'0xCE00': 'Samsung Electronics Inc.',
'0x02FE': 'Elpida',
'0x5105': 'Qimonda AG i. In.',
'0x8551': 'Qimonda AG i. In.',
'0x859B': 'Crucial',
'0x04CD': 'G-Skill'
};
const LINUX_RAM_manufacturers = {
'017A': 'Apacer',
'0198': 'HyperX',
'029E': 'Corsair',
'04CB': 'A-DATA',
'04CD': 'G-Skill',
'059B': 'Crucial',
'00CE': 'Samsung',
'1315': 'Crutial',
'014F': 'Transcend Information',
'2C00': 'Micron Technology Inc.',
'802C': 'Micron Technology Inc.',
'80AD': 'Hynix Semiconductor Inc.',
'80CE': 'Samsung Electronics Inc.',
'AD00': 'Hynix Semiconductor Inc.',
'CE00': 'Samsung Electronics Inc.',
'02FE': 'Elpida',
'5105': 'Qimonda AG i. In.',
'8551': 'Qimonda AG i. In.',
'859B': 'Crucial'
};
// _______________________________________________________________________________________
// | R A M | H D |
// |______________________|_________________________| | |
// | active buffers/cache | | |
// |________________________________________________|___________|_________|______________|
// | used free | used free |
// |____________________________________________________________|________________________|
// | total | swap |
// |____________________________________________________________|________________________|
// free (older versions)
// ----------------------------------
// # free
// total used free shared buffers cached
// Mem: 16038 (1) 15653 (2) 384 (3) 0 (4) 236 (5) 14788 (6)
// -/+ buffers/cache: 628 (7) 15409 (8)
// Swap: 16371 83 16288
//
// |------------------------------------------------------------|
// | R A M |
// |______________________|_____________________________________|
// | active (2-(5+6) = 7) | available (3+5+6 = 8) |
// |______________________|_________________________|___________|
// | active | buffers/cache (5+6) | |
// |________________________________________________|___________|
// | used (2) | free (3) |
// |____________________________________________________________|
// | total (1) |
// |____________________________________________________________|
//
// free (since free von procps-ng 3.3.10)
// ----------------------------------
// # free
// total used free shared buffers/cache available
// Mem: 16038 (1) 628 (2) 386 (3) 0 (4) 15024 (5) 14788 (6)
// Swap: 16371 83 16288
//
// |------------------------------------------------------------|
// | R A M |
// |______________________|_____________________________________|
// | | available (6) estimated |
// |______________________|_________________________|___________|
// | active (2) | buffers/cache (5) | free (3) |
// |________________________________________________|___________|
// | total (1) |
// |____________________________________________________________|
//
// Reference: http://www.software-architect.net/blog/article/date/2015/06/12/-826c6e5052.html
// /procs/meminfo - sample (all in kB)
//
// MemTotal: 32806380 kB
// MemFree: 17977744 kB
// MemAvailable: 19768972 kB
// Buffers: 517028 kB
// Cached: 2161876 kB
// SwapCached: 456 kB
// Active: 12081176 kB
// Inactive: 2164616 kB
// Active(anon): 10832884 kB
// Inactive(anon): 1477272 kB
// Active(file): 1248292 kB
// Inactive(file): 687344 kB
// Unevictable: 0 kB
// Mlocked: 0 kB
// SwapTotal: 16768892 kB
// SwapFree: 16768304 kB
// Dirty: 268 kB
// Writeback: 0 kB
// AnonPages: 11568832 kB
// Mapped: 719992 kB
// Shmem: 743272 kB
// Slab: 335716 kB
// SReclaimable: 256364 kB
// SUnreclaim: 79352 kB
function mem(callback) {
return new Promise((resolve) => {
process.nextTick(() => {
let result = {
total: os.totalmem(),
free: os.freemem(),
used: os.totalmem() - os.freemem(),
active: os.totalmem() - os.freemem(), // temporarily (fallback)
available: os.freemem(), // temporarily (fallback)
buffers: 0,
cached: 0,
slab: 0,
buffcache: 0,
swaptotal: 0,
swapused: 0,
swapfree: 0
};
if (_linux) {
fs.readFile('/proc/meminfo', function (error, stdout) {
if (!error) {
const lines = stdout.toString().split('\n');
result.total = parseInt(util.getValue(lines, 'memtotal'), 10);
result.total = result.total ? result.total * 1024 : os.totalmem();
result.free = parseInt(util.getValue(lines, 'memfree'), 10);
result.free = result.free ? result.free * 1024 : os.freemem();
result.used = result.total - result.free;
result.buffers = parseInt(util.getValue(lines, 'buffers'), 10);
result.buffers = result.buffers ? result.buffers * 1024 : 0;
result.cached = parseInt(util.getValue(lines, 'cached'), 10);
result.cached = result.cached ? result.cached * 1024 : 0;
result.slab = parseInt(util.getValue(lines, 'slab'), 10);
result.slab = result.slab ? result.slab * 1024 : 0;
result.buffcache = result.buffers + result.cached + result.slab;
let available = parseInt(util.getValue(lines, 'memavailable'), 10);
result.available = available ? available * 1024 : result.free + result.buffcache;
result.active = result.total - result.available;
result.swaptotal = parseInt(util.getValue(lines, 'swaptotal'), 10);
result.swaptotal = result.swaptotal ? result.swaptotal * 1024 : 0;
result.swapfree = parseInt(util.getValue(lines, 'swapfree'), 10);
result.swapfree = result.swapfree ? result.swapfree * 1024 : 0;
result.swapused = result.swaptotal - result.swapfree;
}
if (callback) { callback(result); }
resolve(result);
});
}
if (_freebsd || _openbsd || _netbsd) {
exec('/sbin/sysctl hw.realmem hw.physmem vm.stats.vm.v_page_count vm.stats.vm.v_wire_count vm.stats.vm.v_active_count vm.stats.vm.v_inactive_count vm.stats.vm.v_cache_count vm.stats.vm.v_free_count vm.stats.vm.v_page_size', function (error, stdout) {
if (!error) {
let lines = stdout.toString().split('\n');
const pagesize = parseInt(util.getValue(lines, 'vm.stats.vm.v_page_size'), 10);
const inactive = parseInt(util.getValue(lines, 'vm.stats.vm.v_inactive_count'), 10) * pagesize;
const cache = parseInt(util.getValue(lines, 'vm.stats.vm.v_cache_count'), 10) * pagesize;
result.total = parseInt(util.getValue(lines, 'hw.realmem'), 10);
if (isNaN(result.total)) { result.total = parseInt(util.getValue(lines, 'hw.physmem'), 10); }
result.free = parseInt(util.getValue(lines, 'vm.stats.vm.v_free_count'), 10) * pagesize;
result.buffcache = inactive + cache;
result.available = result.buffcache + result.free;
result.active = result.total - result.free - result.buffcache;
result.swaptotal = 0;
result.swapfree = 0;
result.swapused = 0;
}
if (callback) { callback(result); }
resolve(result);
});
}
if (_sunos) {
if (callback) { callback(result); }
resolve(result);
}
if (_darwin) {
let pageSize = 4096;
try {
let sysPpageSize = util.toInt(execSync('sysctl -n vm.pagesize').toString());
pageSize = sysPpageSize || pageSize;
} catch (e) {
util.noop();
}
exec('vm_stat 2>/dev/null | grep "Pages active"', function (error, stdout) {
if (!error) {
let lines = stdout.toString().split('\n');
result.active = parseInt(lines[0].split(':')[1], 10) * pageSize;
result.buffcache = result.used - result.active;
result.available = result.free + result.buffcache;
}
exec('sysctl -n vm.swapusage 2>/dev/null', function (error, stdout) {
if (!error) {
let lines = stdout.toString().split('\n');
if (lines.length > 0) {
let line = lines[0].replace(/,/g, '.').replace(/M/g, '');
line = line.trim().split(' ');
for (let i = 0; i < line.length; i++) {
if (line[i].toLowerCase().indexOf('total') !== -1) { result.swaptotal = parseFloat(line[i].split('=')[1].trim()) * 1024 * 1024; }
if (line[i].toLowerCase().indexOf('used') !== -1) { result.swapused = parseFloat(line[i].split('=')[1].trim()) * 1024 * 1024; }
if (line[i].toLowerCase().indexOf('free') !== -1) { result.swapfree = parseFloat(line[i].split('=')[1].trim()) * 1024 * 1024; }
}
}
}
if (callback) { callback(result); }
resolve(result);
});
});
}
if (_windows) {
let swaptotal = 0;
let swapused = 0;
try {
util.powerShell('Get-CimInstance Win32_PageFileUsage | Select AllocatedBaseSize, CurrentUsage').then((stdout, error) => {
if (!error) {
let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0);
lines.forEach(function (line) {
if (line !== '') {
line = line.trim().split(/\s\s+/);
swaptotal = swaptotal + (parseInt(line[0], 10) || 0);
swapused = swapused + (parseInt(line[1], 10) || 0);
}
});
}
result.swaptotal = swaptotal * 1024 * 1024;
result.swapused = swapused * 1024 * 1024;
result.swapfree = result.swaptotal - result.swapused;
if (callback) { callback(result); }
resolve(result);
});
} catch (e) {
if (callback) { callback(result); }
resolve(result);
}
}
});
});
}
exports.mem = mem;
function memLayout(callback) {
function getManufacturerDarwin(manId) {
if ({}.hasOwnProperty.call(OSX_RAM_manufacturers, manId)) {
return (OSX_RAM_manufacturers[manId]);
}
return manId;
}
function getManufacturerLinux(manId) {
const manIdSearch = manId.replace('0x', '').toUpperCase();
if (manIdSearch.length === 4 && {}.hasOwnProperty.call(LINUX_RAM_manufacturers, manIdSearch)) {
return (LINUX_RAM_manufacturers[manIdSearch]);
}
return manId;
}
return new Promise((resolve) => {
process.nextTick(() => {
let result = [];
if (_linux || _freebsd || _openbsd || _netbsd) {
exec('export LC_ALL=C; dmidecode -t memory 2>/dev/null | grep -iE "Size:|Type|Speed|Manufacturer|Form Factor|Locator|Memory Device|Serial Number|Voltage|Part Number"; unset LC_ALL', function (error, stdout) {
if (!error) {
let devices = stdout.toString().split('Memory Device');
devices.shift();
devices.forEach(function (device) {
let lines = device.split('\n');
const sizeString = util.getValue(lines, 'Size');
const size = sizeString.indexOf('GB') >= 0 ? parseInt(sizeString, 10) * 1024 * 1024 * 1024 : parseInt(sizeString, 10) * 1024 * 1024;
if (parseInt(util.getValue(lines, 'Size'), 10) > 0) {
const totalWidth = util.toInt(util.getValue(lines, 'Total Width'));
const dataWidth = util.toInt(util.getValue(lines, 'Data Width'));
result.push({
size,
bank: util.getValue(lines, 'Bank Locator'),
type: util.getValue(lines, 'Type:'),
ecc: dataWidth && totalWidth ? totalWidth > dataWidth : false,
clockSpeed: (util.getValue(lines, 'Configured Clock Speed:') ? parseInt(util.getValue(lines, 'Configured Clock Speed:'), 10) : (util.getValue(lines, 'Speed:') ? parseInt(util.getValue(lines, 'Speed:'), 10) : null)),
formFactor: util.getValue(lines, 'Form Factor:'),
manufacturer: getManufacturerLinux(util.getValue(lines, 'Manufacturer:')),
partNum: util.getValue(lines, 'Part Number:'),
serialNum: util.getValue(lines, 'Serial Number:'),
voltageConfigured: parseFloat(util.getValue(lines, 'Configured Voltage:')) || null,
voltageMin: parseFloat(util.getValue(lines, 'Minimum Voltage:')) || null,
voltageMax: parseFloat(util.getValue(lines, 'Maximum Voltage:')) || null,
});
} else {
result.push({
size: 0,
bank: util.getValue(lines, 'Bank Locator'),
type: 'Empty',
ecc: null,
clockSpeed: 0,
formFactor: util.getValue(lines, 'Form Factor:'),
partNum: '',
serialNum: '',
voltageConfigured: null,
voltageMin: null,
voltageMax: null,
});
}
});
}
if (!result.length) {
result.push({
size: os.totalmem(),
bank: '',
type: '',
ecc: null,
clockSpeed: 0,
formFactor: '',
partNum: '',
serialNum: '',
voltageConfigured: null,
voltageMin: null,
voltageMax: null,
});
// Try Raspberry PI
try {
let stdout = execSync('cat /proc/cpuinfo 2>/dev/null');
let lines = stdout.toString().split('\n');
let model = util.getValue(lines, 'hardware', ':', true).toUpperCase();
let version = util.getValue(lines, 'revision', ':', true).toLowerCase();
if (model === 'BCM2835' || model === 'BCM2708' || model === 'BCM2709' || model === 'BCM2835' || model === 'BCM2837') {
const clockSpeed = {
'0': 400,
'1': 450,
'2': 450,
'3': 3200
};
result[0].type = 'LPDDR2';
result[0].type = version && version[2] && version[2] === '3' ? 'LPDDR4' : result[0].type;
result[0].ecc = false;
result[0].clockSpeed = version && version[2] && clockSpeed[version[2]] || 400;
result[0].clockSpeed = version && version[4] && version[4] === 'd' ? 500 : result[0].clockSpeed;
result[0].formFactor = 'SoC';
stdout = execSync('vcgencmd get_config sdram_freq 2>/dev/null');
lines = stdout.toString().split('\n');
let freq = parseInt(util.getValue(lines, 'sdram_freq', '=', true), 10) || 0;
if (freq) {
result[0].clockSpeed = freq;
}
stdout = execSync('vcgencmd measure_volts sdram_p 2>/dev/null');
lines = stdout.toString().split('\n');
let voltage = parseFloat(util.getValue(lines, 'volt', '=', true)) || 0;
if (voltage) {
result[0].voltageConfigured = voltage;
result[0].voltageMin = voltage;
result[0].voltageMax = voltage;
}
}
} catch (e) {
util.noop();
}
}
if (callback) { callback(result); }
resolve(result);
});
}
if (_darwin) {
exec('system_profiler SPMemoryDataType', function (error, stdout) {
if (!error) {
const allLines = stdout.toString().split('\n');
const eccStatus = util.getValue(allLines, 'ecc', ':', true).toLowerCase();
let devices = stdout.toString().split(' BANK ');
let hasBank = true;
if (devices.length === 1) {
devices = stdout.toString().split(' DIMM');
hasBank = false;
}
devices.shift();
devices.forEach(function (device) {
let lines = device.split('\n');
const bank = (hasBank ? 'BANK ' : 'DIMM') + lines[0].trim().split('/')[0];
const size = parseInt(util.getValue(lines, ' Size'));
if (size) {
result.push({
size: size * 1024 * 1024 * 1024,
bank: bank,
type: util.getValue(lines, ' Type:'),
ecc: eccStatus ? eccStatus === 'enabled' : null,
clockSpeed: parseInt(util.getValue(lines, ' Speed:'), 10),
formFactor: '',
manufacturer: getManufacturerDarwin(util.getValue(lines, ' Manufacturer:')),
partNum: util.getValue(lines, ' Part Number:'),
serialNum: util.getValue(lines, ' Serial Number:'),
voltageConfigured: null,
voltageMin: null,
voltageMax: null,
});
} else {
result.push({
size: 0,
bank: bank,
type: 'Empty',
ecc: null,
clockSpeed: 0,
formFactor: '',
manufacturer: '',
partNum: '',
serialNum: '',
voltageConfigured: null,
voltageMin: null,
voltageMax: null,
});
}
});
}
if (!result.length) {
const lines = stdout.toString().split('\n');
const size = parseInt(util.getValue(lines, ' Memory:'));
const type = util.getValue(lines, ' Type:');
if (size && type) {
result.push({
size: size * 1024 * 1024 * 1024,
bank: '0',
type,
ecc: false,
clockSpeed: 0,
formFactor: '',
manufacturer: 'Apple',
partNum: '',
serialNum: '',
voltageConfigured: null,
voltageMin: null,
voltageMax: null,
});
}
}
if (callback) { callback(result); }
resolve(result);
});
}
if (_sunos) {
if (callback) { callback(result); }
resolve(result);
}
if (_windows) {
const memoryTypes = 'Unknown|Other|DRAM|Synchronous DRAM|Cache DRAM|EDO|EDRAM|VRAM|SRAM|RAM|ROM|FLASH|EEPROM|FEPROM|EPROM|CDRAM|3DRAM|SDRAM|SGRAM|RDRAM|DDR|DDR2|DDR2 FB-DIMM|Reserved|DDR3|FBD2|DDR4|LPDDR|LPDDR2|LPDDR3|LPDDR4'.split('|');
const FormFactors = 'Unknown|Other|SIP|DIP|ZIP|SOJ|Proprietary|SIMM|DIMM|TSOP|PGA|RIMM|SODIMM|SRIMM|SMD|SSMP|QFP|TQFP|SOIC|LCC|PLCC|BGA|FPBGA|LGA'.split('|');
try {
util.powerShell('Get-WmiObject Win32_PhysicalMemory | select DataWidth,TotalWidth,Capacity,BankLabel,MemoryType,SMBIOSMemoryType,ConfiguredClockSpeed,FormFactor,Manufacturer,PartNumber,SerialNumber,ConfiguredVoltage,MinVoltage,MaxVoltage | fl').then((stdout, error) => {
if (!error) {
let devices = stdout.toString().split(/\n\s*\n/);
devices.shift();
devices.forEach(function (device) {
let lines = device.split('\r\n');
const dataWidth = util.toInt(util.getValue(lines, 'DataWidth', ':'));
const totalWidth = util.toInt(util.getValue(lines, 'TotalWidth', ':'));
const size = parseInt(util.getValue(lines, 'Capacity', ':'), 10) || 0;
if (size) {
result.push({
size,
bank: util.getValue(lines, 'BankLabel', ':'), // BankLabel
type: memoryTypes[parseInt(util.getValue(lines, 'MemoryType', ':'), 10) || parseInt(util.getValue(lines, 'SMBIOSMemoryType', ':'), 10)],
ecc: dataWidth && totalWidth ? totalWidth > dataWidth : false,
clockSpeed: parseInt(util.getValue(lines, 'ConfiguredClockSpeed', ':'), 10) || parseInt(util.getValue(lines, 'Speed', ':'), 10) || 0,
formFactor: FormFactors[parseInt(util.getValue(lines, 'FormFactor', ':'), 10) || 0],
manufacturer: util.getValue(lines, 'Manufacturer', ':'),
partNum: util.getValue(lines, 'PartNumber', ':'),
serialNum: util.getValue(lines, 'SerialNumber', ':'),
voltageConfigured: (parseInt(util.getValue(lines, 'ConfiguredVoltage', ':'), 10) || 0) / 1000.0,
voltageMin: (parseInt(util.getValue(lines, 'MinVoltage', ':'), 10) || 0) / 1000.0,
voltageMax: (parseInt(util.getValue(lines, 'MaxVoltage', ':'), 10) || 0) / 1000.0,
});
}
});
}
if (callback) { callback(result); }
resolve(result);
});
} catch (e) {
if (callback) { callback(result); }
resolve(result);
}
}
});
});
}
exports.memLayout = memLayout;
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