umemtester - Micro-Memtester

Very simple memory tester - the tiny sibling of memtester.

What it does:

1. Allocate SIZE_MIB megabytes of RAM and mlockall() it
2. Fill it with pseudorandom data from rand()
3. Verify the contents

Usage

./umemtester SIZE_MIB

Example

$ ./umemtester 1000
testing 1000 MiB
warning: could not lock memory: Cannot allocate memory
filling
verifying
ok

Exit Value

• 0 = ok
• 1 = usage error
• 2 = memory corruption