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How to quickly check RAM on Linux

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Post by alexeykovyazin » Wed, Aug 10, 2016, 1:32 PM UTC

Re: How to quickly check RAM on Linux

Post by basemi » Wed, Aug 10, 2016, 2:01 PM UTC

Also look at memtester[0] as a userspace tool.

Post by alexeykovyazin » Wed, Aug 10, 2016, 2:15 PM UTC

basemi wrote: post #2

Also look at memtester[0] as a userspace tool. [0] http://pyropus.ca/software/memtester/

thanks, I'll add the link.

Post by dalke » Wed, Aug 10, 2016, 3:08 PM UTC

How does the given command check RAM?

  dd if=/dev/zero of=/run/zero.bin bs=1G count=8
  sha1sum /run/zero.bin

/dev/zero is a special file that always returns zeros. Nothing in there looks like it touches more than a trivial amount of RAM.

Plus, this test can't tell if a bit is always zero.