Summary

Allocates memory in 1Mb blocks, up to the total requested by user. Intended use is to validate container image memory constraints.

Usage

allocate 4Mb of data ./golang-memtest 4

allocate 8Mb of data ./golang-memtest 8

use environment variable to specity number of Mb. useful when running in container nmb=3 ./golang-memtest

Prerequisites

• make utility (sudo apt-get install make)
• GoLang (https://fabianlee.org/2018/05/09/golang-installing-the-go-programming-language-on-ubuntu-16-04/)

Makefile targets

• go-compile (compiles go program, although I already compiled Linux binary as convenience)
• docker-run (builds golang binary, docker image, runs)
• docker-run-ok (puts 8Mb limit on docker container, allocates 4, should run OK)
• docker-run-bigmem (puts 8Mb limit on docker container, allocates 12, should FAIL)