memtester: memtester (memory test utility) memtester: memtester: memtester is a userspace utility for testing the memory subsystem memtester: for faults. Unlike memtest86, it runs as a process on a running memtester: Linux system, meaning it can't test all of memory the way memtest86 memtester: is able to... but you don't have to reboot to use it. memtester: memtester: memtester: memtester: memtester: