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systeminformation

4.16.0 • Public • Published

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systeminformation

System and OS information library for node.js
Explore Systeminformation docs »

Report bug · Request feature · Changelog

NPM Version NPM Downloads Git Issues Closed Issues deps status Code Quality: Javascript Total alerts Caretaker MIT license

This is amazing. Started as a small project just for myself, it now has > 9,000 lines of code, > 250 versions published, up to 900,000 downloads per month, > 2 Mio downloads overall. Thank you to all who contributed to this project!

New Version 4.0

This next major version release 4.0 comes with several optimizations and changes:

  • new systeminformation website with better documentation and examples systeminformation.io
  • added typescript definitions
  • reworked network section: this will now return more information and allows to get networkStats for more than one interface at once.
  • dockerContainerStats for multiple containers or all containers at once
  • optimized graphics controller and display detection
  • added wifiNetworks to get available wifi networks
  • added vboxInfo to get detailed vm information
  • added chassis information
  • better Raspberry-PI detection
  • lot of minor improvements

Breaking Changes: you will see some minor breaking changes. Read the detailed changelog.

Quick Start

Lightweight collection of 40+ functions to retrieve detailed hardware, system and OS information.

  • simple to use
  • get detailed information about system, cpu, baseboard, battery, memory, disks/filesystem, network, docker, software, services and processes
  • supports Linux, macOS, partial Windows, FreeBSD, OpenBSD, NetBSD and SunOS support
  • no npm dependencies (for production)

Installation

$ npm install systeminformation --save

Usage

All functions (except version and time) are implemented as asynchronous functions. Here a small example how to use them:

const si = require('systeminformation');
 
// promises style - new since version 3
si.cpu()
    .then(data => console.log(data))
    .catch(error => console.error(error));

Callback, Promises, Awync Await

News and Changes

Latest Activity

(last 7 major and minor version releases)

  • Version 4.15.0: cpu() added governor (linux)
  • Version 4.14.0: processes() added process path and params
  • Version 4.13.0: networkConnections() added PID, process
  • Version 4.12.0: networkInterfaces() added property virtual
  • Version 4.11.0: wifiNetworks() added available wifi networks
  • Version 4.10.0: graphics() added windows multiple display support, added display size, connection, ...
  • Version 4.9.0: graphics() added vendor, refresh rate, current resolution
  • ...

You can find all changes here: detailed changelog

Core concept

Node.js comes with some basic OS information, but I always wanted a little more. So I came up to write this little library. This library is still work in progress. It is supposed to be used as a backend/server-side library (will definilely not work within a browser). It requires node.js version 4.0 and above.

I was able to test it on several Debian, Raspbian, Ubuntu distributions as well as macOS (Mavericks, Yosemite, El Captain, Sierra, High Sierra, Mojave) and some Windows 7, Windows 10, FreeBSD, OpenBSD, NetBSD and SunOS machines. Not all functions are supported on all operating systems. Have a look at the function reference in the docs to get further details.

If you have comments, suggestions & reports, please feel free to contact me!

I also created a nice little command line tool called mmon (micro-monitor) for Linux and macOS, also available via github and npm

Reference

Function Reference and OS Support

1. General

Function Result object Linux BSD Mac Win Sun Comments
si.version() : string X X X X X lib version (no callback/promise)
si.time() {...} X X X X X (no callback/promise)
current X X X X X local (server) time
uptime X X X X X uptime
timezone X X X X X e.g. GMT+0200
timezoneName X X X X X e.g. CEST

2. System (HW)

Function Result object Linux BSD Mac Win Sun Comments
si.system(cb) {...} X X X X hardware information
manufacturer X X X X e.g. 'MSI'
model X X X X model/product e.g. 'MS-7823'
version X X X X version e.g. '1.0'
serial X X X X serial number
uuid X X X X UUID
sku X X X X SKU number
si.bios(cb) {...} X X X X bios information
vendor X X X X e.g. 'AMI'
version X X X version
releaseDate X X X release date
revision X X X revision
si.baseboard(cb) {...} X X X X baseboard information
manufacturer X X X X e.g. 'ASUS'
model X X X X model / product name
version X X X X version
serial X X X X serial number
assetTag X X X X asset tag
si.chassis(cb) {...} X X X X chassis information
manufacturer X X X X e.g. 'MSI'
model X X X X model / product name
type X X X X model / product name
version X X X X version
serial X X X X serial number
assetTag X X X X asset tag
sku X SKU number

3. CPU

Function Result object Linux BSD Mac Win Sun Comments
si.cpu(cb) {...} X X X X CPU information
manufacturer X X X X e.g. 'Intel(R)'
brand X X X X e.g. 'Core(TM)2 Duo'
speed X X X X in GHz e.g. '3.40'
speedmin X X X in GHz e.g. '0.80'
speedmax X X X X in GHz e.g. '3.90'
governor X e.g. 'powersave'
cores X X X X # cores
physicalCores X X X X # physical cores
processors X X X X # processors
socket X X X socket type e.g. "LGA1356"
vendor X X X X vendor ID
family X X X X processor family
model X X X X processor model
stepping X X X X processor stepping
revision X X X revision
voltage X voltage
cache X X X X cache in bytes (object)
cache.l1d X X X X L1D (data) size
cache.l1i X X X X L1I (instruction) size
cache.l2 X X X X L2 size
cache.l3 X X X X L3 size
si.cpuFlags(cb) : string X X X X CPU flags
si.cpuCache(cb) {...} X X X X CPU cache sizes
l1d X X X X L1D size
l1i X X X X L1I size
l2 X X X X L2 size
l3 X X X X L3 size
si.cpuCurrentspeed(cb) {...} X X X X X current CPU speed (in GHz)
avg X X X X X avg CPU speed (all cores)
min X X X X X min CPU speed (all cores)
max X X X X X max CPU speed (all cores)
cores X X X X X CPU speed per core (array)
si.cpuTemperature(cb) {...} X X X* X CPU temperature (if supported)
main X X X X main temperature (avg)
cores X X X X array of temperatures
max X X X X max temperature

4. Memory

Function Result object Linux BSD Mac Win Sun Comments
si.mem(cb) {...} X X X X X Memory information (in bytes)
total X X X X X total memory in bytes
free X X X X X not used in bytes
used X X X X X used (incl. buffers/cache)
active X X X X X used actively (excl. buffers/cache)
buffcache X X X X used by buffers+cache
buffers X used by buffers
cached X used by cache
slab X used by slab
available X X X X X potentially available (total - active)
swaptotal X X X X X
swapused X X X X X
swapfree X X X X X
si.memLayout(cb) [{...}] X X X X Memory Layout (array)
[0].size X X X X size in bytes
[0].bank X X X memory bank
[0].type X X X X memory type
[0].clockSpeed X X X X clock speed
[0].formFactor X X X form factor
[0].manufacturer X X X X manufacturer
[0].partNum X X X X part number
[0].serialNum X X X X serial number
[0].voltageConfigured X X X voltage conf.
[0].voltageMin X X X voltage min
[0].voltageMax X X X voltage max

5. Battery

Function Result object Linux BSD Mac Win Sun Comments
si.battery(cb) {...} X X X X battery information
hasbattery X X X X indicates presence of battery
cyclecount X X numbers of recharges
ischarging X X X X indicates if battery is charging
maxcapacity X X X max capacity of battery
currentcapacity X X X current capacity of battery
percent X X X X charging level in percent
timeremaining X X minutes left (if discharging)
acconnected X X X X AC connected
type X X battery type
model X X model
manufacturer X X manufacturer
serial X X battery serial
  • See known issues if you have problem with macOS temperature or windows temperature

6. Graphics

Function Result object Linux BSD Mac Win Sun Comments
si.graphics(cb) {...} X X X arrays of graphics controllers and displays
controllers[] X X X graphics controllers array
...[0].model X X X graphics controller model
...[0].vendor X X X e.g. ATI
...[0].bus X X X on which bus (e.g. PCIe)
...[0].vram X X X VRAM size (in MB)
...[0].vramDynamic X X X true if dynamicly allocated ram
displays[] X X X monitor/display array
...[0].vendor X monitor/display vendor
...[0].model X X X monitor/display model
...[0].main X X X true if main monitor
...[0].builtin X X true if built in monitor
...[0].connection X X X e.g. DisplayPort or HDMI
...[0].sizex X X X size in mm horizontal
...[0].sizey X X X size in mm vertical
...[0].pixeldepth X X X color depth in bits
...[0].resolutionx X X X pixel horizontal
...[0].resolutiony X X X pixel vertical
...[0].currentResX X X X current pixel horizontal
...[0].currentResY X X X current pixel vertical
...[0].positionX X display position X
...[0].positionY X display position Y
...[0].currentRefreshRate X X X current pixel vertical

7. Operating System

Function Result object Linux BSD Mac Win Sun Comments
si.osInfo(cb) {...} X X X X X OS information
platform X X X X X 'linux', 'darwin', 'win32', ...
distro X X X X X
release X X X X X
codename X
kernel X X X X X kernel release - same as os.release()
arch X X X X X same as os.arch()
hostname X X X X X same as os.hostname()
codepage X X X X OS build version
logofile X X X X X e.g. 'apple', 'debian', 'fedora', ...
serial X X X X OS/Host serial number
build X X X OS build version
servicepack X service pack version
si.uuid(cb) {...} X X X X X object of several UUIDs
os X X X X os specific UUID
si.versions(cb) {...} X X X X X version information (kernel, ssl, node, ...)
si.shell(cb) : string X X X standard shell
si.users(cb) [{...}] X X X X X array of users online
[0].user X X X X X user name
[0].tty X X X X X terminal
[0].date X X X X X login date
[0].time X X X X X login time
[0].ip X X X X ip address (remote login)
[0].command X X X X last command or shell

8. Current Load, Processes & Services

Function Result object Linux BSD Mac Win Sun Comments
si.currentLoad(cb) {...} X X X X CPU-Load
avgload X X X average load
currentload X X X X CPU load in %
currentload_user X X X X CPU load user in %
currentload_system X X X X CPU load system in %
currentload_nice X X X X CPU load nice in %
currentload_idle X X X X CPU load idle in %
currentload_irq X X X X CPU load system in %
raw_currentload... X X X X CPU load raw values (ticks)
cpus[] X X X X current loads per CPU in % + raw ticks
si.fullLoad(cb) : integer X X X CPU full load since bootup in %
si.processes(cb) {...} X X X X X # running processes
all X X X X X # of all processes
running X X X X X # of all processes running
blocked X X X X X # of all processes blocked
sleeping X X X X X # of all processes sleeping
unknown X # of all processes unknown status
list[] X X X X X list of all processes incl. details
...[0].pid X X X X X process PID
...[0].parentPid X X X X X parent process PID
...[0].name X X X X X process name
...[0].pcpu X X X X X process % CPU usage
...[0].pcpuu X X X process % CPU usage (user)
...[0].pcpus X X X process % CPU usage (system)
...[0].pmem X X X X X process memory %
...[0].priority X X X X X process priotity
...[0].mem_vsz X X X X X process virtual memory size
...[0].mem_rss X X X X X process mem resident set size
...[0].nice X X X X process nice value
...[0].started X X X X X process start time
...[0].state X X X X X process state (e.g. sleeping)
...[0].tty X X X X tty from which process was started
...[0].user X X X X user who started process
...[0].command X X X X X process starting command
...[0].params X X X X process params
...[0].path X X X X X process path
proc X X X X process name
pid X X X X PID
pids X X X X additional pids
cpu X X X X process % CPU
mem X X X X process % MEM
si.services('mysql, apache2', cb) [{...}] X X X X pass comma separated string of services
pass "*" for ALL services (linux/win only)
[0].name X X X X name of service
[0].running X X X X true / false
[0].startmode X manual, automatic, ...
[0].pids X X X pids
[0].pcpu X X X process % CPU
[0].pmem X X X process % MEM

9. File System

Function Result object Linux BSD Mac Win Sun Comments
si.diskLayout(cb) [{...}] X X X physical disk layout (array)
[0].device X X e.g. /dev/sda
[0].type X X X HD, SSD, NVMe
[0].name X X X disk name
[0].vendor X X vendor/producer
[0].size X X X size in bytes
[0].bytesPerSector X bytes per sector
[0].totalCylinders X total cylinders
[0].totalHeads X total heads
[0].totalSectors X total sectors
[0].totalTracks X total tracks
[0].tracksPerCylinder X tracks per cylinder
[0].sectorsPerTrack X sectors per track
[0].firmwareRevision X X X firmware revision
[0].serialNum X X X serial number
[0].interfaceType X X SATA, PCIe, ...
[0].smartStatus X X X S.M.A.R.T Status (see Known Issues)
si.blockDevices(cb) [{...}] X X X returns array of disks, partitions,
raids and roms
[0].name X X X name
[0].type X X X type
[0].fstype X X X file system type (e.g. ext4)
[0].mount X X X mount point
[0].size X X X size in bytes
[0].physical X X X physical type (HDD, SSD, CD/DVD)
[0].uuid X X X UUID
[0].label X X X label
[0].model X X model
[0].serial X X serial
[0].removable X X X serial
[0].protocol X X protocol (SATA, PCI-Express, ...)
si.disksIO(cb) {...} X X current transfer stats
rIO X X read IOs on all mounted drives
wIO X X write IOs on all mounted drives
tIO X X write IOs on all mounted drives
rIO_sec X X read IO per sec (* see notes)
wIO_sec X X write IO per sec (* see notes)
tIO_sec X X total IO per sec (* see notes)
ms X X interval length (for per second values)
si.fsSize(cb) [{...}] X X X X returns array of mounted file systems
[0].fs X X X X name of file system
[0].type X X X X type of file system
[0].size X X X X sizes in bytes
[0].used X X X X used in bytes
[0].use X X X X used in %
[0].mount X X X X mount point
si.fsOpenFiles(cb) {...} X X X count max/allocated file descriptors
max X X X max file descriptors
allocated X X X current open files count
available X X X count available
si.fsStats(cb) {...} X X current transfer stats
rx X X bytes read since startup
wx X X bytes written since startup
tx X X total bytes read + written since startup
rx_sec X X bytes read / second (* see notes)
wx_sec X X bytes written / second (* see notes)
tx_sec X X total bytes reads + written / second
ms X X interval length (for per second values)

10. Network related functions

Function Result object Linux BSD Mac Win Sun Comments
si.networkInterfaces(cb) [{...}] X X X X X array of network interfaces
[0].iface X X X X X interface
[0].ifaceName X X X X X interface name (differs on Windows)
[0].ip4 X X X X X ip4 address
[0].ip6 X X X X X ip6 address
[0].mac X X X X X MAC address
[0].internal X X X X X true if internal interface
[0].virtual X X X X X true if virtual interface
[0].operstate X X X up / down
[0].type X X X wireless / wired
[0].duplex X X duplex
[0].mtu X X maximum transmission unit
[0].speed X X X speed in MBit / s
[0].carrierChanges X # changes up/down
si.networkInterfaceDefault(cb) : string X X X X X get name of default network interface
si.networkGatewayDefault(cb) : string X X X X X get default network gateway
si.networkStats(ifaces,cb) [{...}] X X X X current network stats of given interfaces
iface list: space or comma separated
iface parameter is optional
defaults to first external network interface,
Pass '*' for all interfaces
[0].iface X X X X interface
[0].operstate X X X X up / down
[0].rx_bytes X X X X received bytes overall
[0].rx_dropped X X X X received dropped overall
[0].rx_errors X X X X received errors overall
[0].tx_bytes X X X X transferred bytes overall
[0].tx_dropped X X X X transferred dropped overall
[0].tx_errors X X X X transferred errors overall
[0].rx_sec X X X X received bytes / second (* see notes)
[0].tx_sec X X X X transferred bytes per second (* see notes)
[0].ms X X X X interval length (for per second values)
si.networkConnections(cb) [{...}] X X X X current network network connections
returns an array of all connections
[0].protocol X X X X tcp or udp
[0].localaddress X X X X local address
[0].localport X X X X local port
[0].peeraddress X X X X peer address
[0].peerport X X X X peer port
[0].state X X X X like ESTABLISHED, TIME_WAIT, ...
[0].pid X X X X process ID
[0].process X X process name
si.inetChecksite(url, cb) {...} X X X X X response-time (ms) to fetch given URL
url X X X X X given url
ok X X X X X status code OK (2xx, 3xx)
status X X X X X status code
ms X X X X X response time in ms
si.inetLatency(host, cb) : number X X X X X response-time (ms) to external resource
host parameter is optional (default 8.8.8.8)

11. Wifi networks

Function Result object Linux BSD Mac Win Sun Comments
si.wifiNetworks(cb) [{...}] X X X array of available wifi networks
[0].ssid X X X Wifi network SSID
[0].bssid X X X BSSID (mac)
[0].mode X mode
[0].channel X X X channel
[0].frequency X X X frequengy in MHz
[0].signalLevel X X X signal level in dB
[0].quality X X X quaility in %
[0].security X X X array e.g. WPA, WPA-2
[0].wpaFlags X X X array of WPA flags
[0].rsnFlags X array of RDN flags

12. Docker

Function Result object Linux BSD Mac Win Sun Comments
si.dockerInfo(cb) {...} X X X X X returns general docker info
id X X X X X Docker ID
containers X X X X X number of containers
containersRunning X X X X X number of running containers
containersPaused X X X X X number of paused containers
containersStopped X X X X X number of stopped containers
images X X X X X number of images
driver X X X X X driver (e.g. 'devicemapper', 'overlay2')
memoryLimit X X X X X has memory limit
swapLimit X X X X X has swap limit
kernelMemory X X X X X has kernal memory
cpuCfsPeriod X X X X X has CpuCfsPeriod
cpuCfsQuota X X X X X has CpuCfsQuota
cpuShares X X X X X has CPUShares
cpuSet X X X X X has CPUShares
ipv4Forwarding X X X X X has IPv4Forwarding
bridgeNfIptables X X X X X has BridgeNfIptables
bridgeNfIp6tables X X X X X has BridgeNfIp6tables
debug X X X X X Debug on
nfd X X X X X named data networking forwarding daemon
oomKillDisable X X X X X out-of-memory kill disabled
ngoroutines X X X X X number NGoroutines
systemTime X X X X X docker SystemTime
loggingDriver X X X X X logging driver e.g. 'json-file'
cgroupDriver X X X X X cgroup driver e.g. 'cgroupfs'
nEventsListener X X X X X number NEventsListeners
kernelVersion X X X X X docker kernel version
operatingSystem X X X X X docker OS e.g. 'Docker for Mac'
osType X X X X X OSType e.g. 'linux'
architecture X X X X X architecture e.g. x86_64
ncpu X X X X X number of CPUs
memTotal X X X X X memory total
dockerRootDir X X X X X docker root directory
httpProxy X X X X X http proxy
httpsProxy X X X X X https proxy
noProxy X X X X X NoProxy
name X X X X X Name
labels X X X X X array of labels
experimentalBuild X X X X X is experimental build
serverVersion X X X X X server version
clusterStore X X X X X cluster store
clusterAdvertise X X X X X cluster advertise
defaultRuntime X X X X X default runtime e.g. 'runc'
liveRestoreEnabled X X X X X live store enabled
isolation X X X X X isolation
initBinary X X X X X init binary
productLicense X X X X X product license
si.dockerContainers(all, cb) [{...}] X X X X X returns array of active/all docker containers
[0].id X X X X X ID of container
[0].name X X X X X name of container
[0].image X X X X X name of image
[0].imageID X X X X X ID of image
[0].command X X X X X command
[0].created X X X X X creation time (unix)
[0].started X X X X X creation time (unix)
[0].finished X X X X X creation time (unix)
[0].createdAt X X X X X creation date time string
[0].startedAt X X X X X creation date time string
[0].finishedAt X X X X X creation date time string
[0].state X X X X X created, running, exited
[0].ports X X X X X array of ports
[0].mounts X X X X X array of mounts
si.dockerContainerStats(ids, cb) [{...}] X X X X X statistics for specific containers
container IDs: space or comma separated,
pass '*' for all containers
[0].id X X X X X Container ID
[0].mem_usage X X X X X memory usage in bytes
[0].mem_limit X X X X X memory limit (max mem) in bytes
[0].mem_percent X X X X X memory usage in percent
[0].cpu_percent X X X X X cpu usage in percent
[0].pids X X X X X number of processes
[0].netIO.rx X X X X X received bytes via network
[0].netIO.wx X X X X X sent bytes via network
[0].blockIO.r X X X X X bytes read from BlockIO
[0].blockIO.w X X X X X bytes written to BlockIO
[0].cpu_stats X X X X X detailed cpu stats
[0].percpu_stats X X X X X detailed per cpu stats
[0].memory_stats X X X X X detailed memory stats
[0].networks X X X X X detailed network stats per interface
si.dockerContainerProcesses(id, cb) [{...}] X X X X X array of processes inside a container
[0].pid_host X X X X X process ID (host)
[0].ppid X X X X X parent process ID
[0].pgid X X X X X process group ID
[0].user X X X X X effective user name
[0].ruser X X X X X real user name
[0].group X X X X X effective group name
[0].rgroup X X X X X real group name
[0].stat X X X X X process state
[0].time X X X X X accumulated CPU time
[0].elapsed X X X X X elapsed running time
[0].nice X X X X X nice value
[0].rss X X X X X resident set size
[0].vsz X X X X X virtual size in Kbytes
[0].command X X X X X command and arguments
si.dockerAll(cb) {...} X X X X X list of all containers including their stats
and processes in one single array

13. Virtual Box

Function Result object Linux BSD Mac Win Sun Comments
si.vboxInfo(cb) [{...}] X X X X X returns array general virtual box info
[0].id X X X X X virtual box ID
[0].name X X X X X name
[0].running X X X X X vbox is running
[0].started X X X X X started date time
[0].runningSince X X X X X running since (secs)
[0].stopped X X X X X stopped date time
[0].stoppedSince X X X X X stopped since (secs)
[0].guestOS X X X X X Guest OS
[0].hardwareUUID X X X X X Hardware UUID
[0].memory X X X X X Memory in MB
[0].vram X X X X X VRAM in MB
[0].cpus X X X X X CPUs
[0].cpuExepCap X X X X X CPU exec cap
[0].cpuProfile X X X X X CPU profile
[0].chipset X X X X X chipset
[0].firmware X X X X X firmware
[0].pageFusion X X X X X page fusion
[0].configFile X X X X X config file
[0].snapshotFolder X X X X X snapshot folder
[0].logFolder X X X X X log folder path
[0].HPET X X X X X HPET
[0].PAE X X X X X PAE
[0].longMode X X X X X long mode
[0].tripleFaultReset X X X X X triple fault reset
[0].APIC X X X X X APIC
[0].X2APIC X X X X X X2APIC
[0].ACPI X X X X X ACPI
[0].IOAPIC X X X X X IOAPIC
[0].biosAPICmode X X X X X BIOS APIC mode
[0].bootMenuMode X X X X X boot menu Mode
[0].bootDevice1 X X X X X bootDevice1
[0].bootDevice2 X X X X X bootDevice2
[0].bootDevice3 X X X X X bootDevice3
[0].bootDevice4 X X X X X bootDevice4
[0].timeOffset X X X X X time Offset
[0].RTC X X X X X RTC

14. "Get All at once" - functions

Function Result object Linux BSD Mac Win Sun Comments
si.getStaticData(cb) {...} X X X X X all static data at once
si.getDynamicData(srv,iface,cb) {...} X X X X X all dynamic data at once
Specify services and interfaces to monitor
Defaults to first external network interface
Pass "" for ALL services (linux/win only)
Pass "
" for ALL network interfaces
si.getAllData(srv,iface,cb) {...} X X X X X all data at once
Specify services and interfaces to monitor
Defaults to first external network interface
Pass "" for ALL services (linux/win only)
Pass "
" for ALL network interfaces

cb: Asynchronous Function Calls (callback)

Remember: all functions (except version and time) are implemented as asynchronous functions! There are now three ways to consume them:

Callback Style

const si = require('systeminformation');
 
si.cpu(function(data) {
    console.log('CPU Information:');
    console.log('- manufucturer: ' + data.manufacturer);
    console.log('- brand: ' + data.brand);
    console.log('- speed: ' + data.speed);
    console.log('- cores: ' + data.cores);
    console.log('- physical cores: ' + data.physicalCores);
    console.log('...');
})

Promises

Promises Style is new in version 3.0.

When omitting callback parameter (cb), then you can use all function in a promise oriented way. All functions (exept of version and time) are returning a promise, that you can consume:

const si = require('systeminformation');
 
si.cpu()
    .then(data => {
        console.log('CPU Information:');
        console.log('- manufucturer: ' + data.manufacturer);
        console.log('- brand: ' + data.brand);
        console.log('- speed: ' + data.speed);
        console.log('- cores: ' + data.cores);
        console.log('- physical cores: ' + data.physicalCores);
        console.log('...');
    })
    .catch(error => console.error(error));

Async / Await

Using async / await (available since node v7.6)

Since node v7.6 you can also use the async / await pattern. The above example would then look like this:

const si = require('systeminformation');
 
async function cpuData() {
    try {
        const data = await si.cpu();
        console.log('CPU Information:');
        console.log('- manufucturer: ' + data.manufacturer);
        console.log('- brand: ' + data.brand);
        console.log('- speed: ' + data.speed);
        console.log('- cores: ' + data.cores);
        console.log('- physical cores: ' + data.physicalCores);
        console.log('...');
    } catch (e) {
        console.log(e)
    }
}

Known Issues

macOS - Temperature Sensor

To be able to measure temperature on macOS I created a little additional package. Due to some difficulties in NPM with optionalDependencies I unfortunately was getting unexpected warnings on other platforms. So I decided to drop this optional dependency for macOS - so by default, you will not get correct values.

But if you need to detect macOS temperature just run the following additional installation command:

$ npm install osx-temperature-sensor --save

systeminformation will then detect this additional library and return the temperature when calling systeminformations standard function cpuTemperature()

Windows Temperature, Battery, ...

wmic - which is used to determine temperature and battery sometimes needs to be run with admin privileges. So if you do not get any values, try to run it again with according privileges. If you still do not get any values, your system might not support this feature. In some cases we also discovered that wmic returned incorrect temperature values.

Linux Temperature

In some cases you need to install the linux sensors package to be able to measure temperature e.g. on DEBIAN based systems by running sudo apt-get install lm-sensors

Linux S.M.A.R.T. Status

To be able to detect S.M.A.R.T. status on Linux you need to install smartmontools. On DEBIAN based linux distributions you can install it by running sudo apt-get install smartmontools

*: Additional Notes

In fsStats(), disksIO() and networkStats() the results / sec. values (rx_sec, IOPS, ...) are calculated correctly beginning with the second call of the function. It is determined by calculating the difference of transferred bytes / IOs divided by the time between two calls of the function.

The first time you are calling one of this functions, you will get -1 for transfer rates. The second time, you should then get statistics based on the time between the two calls ...

So basically, if you e.g. need a values for network stats every second, your code should look like this:

const si = require('systeminformation');
 
setInterval(function() {
    si.networkStats().then(data => {
        console.log(data);
    })
}, 1000)

Beginning with the second call, you get network transfer values per second.

Finding new issues

I am happy to discuss any comments and suggestions. Please feel free to contact me if you see any possibility of improvement!

Comments

If you have ideas or comments, please do not hesitate to contact me.

Happy monitoring!

Sincerely,

Sebastian Hildebrandt, +innovations

Credits

Written by Sebastian Hildebrandt sebhildebrandt

Contributers

OSX Temperature: credits here are going to:

Copyright Information

Linux is a registered trademark of Linus Torvalds. Apple, macOS, OS X are registered trademarks of Apple Inc., Windows is a registered trademark of Microsoft Corporation. Node.js is a trademark of Joyent Inc., Intel is a trademark of Intel Corporation, AMD is a trademark of Advanced Micro Devices Inc., Raspberry Pi is a trademark of the Raspberry Pi Foundation, Debian is a trademark of the Debian Project, Ubuntu is a trademark of Canonical Ltd., FreeBSD is a registered trademark of The FreeBSD Foundation, NetBSD is a registered trademark of The NetBSD Foundation, Docker is a trademark of Docker, Inc., Sun, Solaris, OpenSolaris and registered trademarks of Sun Microsystems.

All other trademarks are the property of their respective owners.

License MIT license

The MIT License (MIT)

Copyright © 2014-2019 Sebastian Hildebrandt, +innovations.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Further details see LICENSE file.

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