memory

Package memory provides two methods reporting total physical system memory accessible to the kernel, and free memory available to the running application.

This package has no external dependency besides the standard library and default operating system tools.

Documentation:

This is useful for dynamic code to minimize thrashing and other contention, similar to the stdlib runtime.NumCPU See some history of the proposal at https://github.com/golang/go/issues/21816

Example

fmt.Printf("Total system memory: %d\n", memory.TotalMemory())
fmt.Printf("Free memory: %d\n", memory.FreeMemory())

Testing

Tested/working on:

macOS 10.12.6 (16G29), 10.15.7 (19H2)
Windows 10 1511 (10586.1045)
Linux RHEL (3.10.0-327.3.1.el7.x86_64)
Raspberry Pi 3 (ARMv8) on Raspbian, ODROID-C1+ (ARMv7) on Ubuntu, C.H.I.P (ARMv7).
Amazon Linux 2 aarch64 (m6a.large, 4.14.203-156.332.amzn2.aarch64)

Tested on virtual machines:

Windows 7 SP1 386
Debian stretch 386
NetBSD 7.1 amd64 + 386
OpenBSD 6.1 amd64 + 386
FreeBSD 11.1 amd64 + 386
DragonFly BSD 4.8.1 amd64

If you have access to untested systems please test and report success/bugs.

1.3 KiB Raw Blame History

memory

Example

Testing

1.3 KiB

Raw Blame History