# google/rowhammer-test

Test DRAM for bit flips caused by the rowhammer problem

Repository: https://github.com/google/rowhammer-test
Canonical: https://ross.abutalabs.com/products/rowhammer-test
Language: C++
License Family: other
Archived: true
Last push: 2015-09-02T08:12:30+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4257, "days_push": 4018, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1003, forks 202 (observed 2026-09-03T02:15:12.428249+00:00)

## What it is
A userland test program that checks DRAM modules for bit flips caused by the rowhammer problem, where repeatedly accessing memory rows disturbs adjacent rows. It works on x86 Linux and Mac OS X by repeatedly accessing uncached memory locations using the CLFLUSH instruction.

## Use cases
- test if my RAM is vulnerable to rowhammer
- check DRAM for bit flips caused by memory disturbance errors
- verify whether a machine is susceptible to the rowhammer bug
- detect rowhammer vulnerability on x86 hardware
- research hardware security by hammering memory rows

## When to choose
- you need to test x86 Linux or Mac machines for rowhammer susceptibility
- you are researching DRAM disturbance errors or hardware security
- you want a simple userland tool with no kernel driver required

## When to avoid
- you need testing on ARM or other non-x86 architectures
- the machine contains important data, since the test can corrupt memory
- you need an actively maintained tool with recent hardware support

## Facets
- artifact type: cli-tool
- maturity: abandoned
- function: testing, security, developer-tools
- domain: security, hardware, developer-tools
- platform: cpp, cli
- tags: rowhammer, dram, hardware-vulnerability, memory-testing, bit-flips, linux, macos

## Member repositories
- google/rowhammer-test (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:12.428249+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:13:51.589511+00:00, confidence not recorded.
  - readme: https://github.com/google/rowhammer-test (fetched 2026-09-03T02:15:12.428249+00:00, sha 8690abfad726)
- Data as of 2026-08-30T08:39:29.467469+00:00.