# major/MySQLTuner-perl

MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.

Repository: https://github.com/major/MySQLTuner-perl
Canonical: https://ross.abutalabs.com/products/mysqltuner-perl
Language: Perl
License: GPL-3.0
License Family: copyleft
Last push: 2026-08-24T13:05:34+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 98, longevity 100
- inputs: {"age_days": 6305, "days_push": 9, "days_rel": 14, "gap_med": 17.5, "n_releases_24m": 9}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 9475, forks 1288 (observed 2026-08-28T04:10:31.304472+00:00)

## What it is
MySQLTuner is a Perl script that audits a running MySQL, MariaDB, or Percona Server instance and reports configuration variables, status metrics, and performance/stability recommendations. It supports 900+ indicators including health scoring, capacity planning, and SSL/TLS audits across many storage engines and cluster setups.

## Use cases
- tune mysql configuration for better performance
- audit mariadb server settings and get recommendations
- check mysql memory and buffer sizing
- review mysql security and ssl/tls configuration
- diagnose slow mysql server stability issues
- assess innodb and myisam performance health

## When to choose
- you run MySQL, MariaDB, or Percona Server and want quick, actionable tuning advice
- you need a lightweight, dependency-free script runnable directly on the database host
- you want broad coverage of storage engines, Galera clusters, and OS-level metrics

## When to avoid
- you need continuous monitoring and alerting rather than point-in-time audits
- you want automated tuning - MySQLTuner only recommends, it does not change configuration
- you run a database other than MySQL/MariaDB/Percona

## Facets
- artifact type: cli-tool
- maturity: active
- function: monitoring, database, developer-tools, benchmarking
- domain: databases, performance, developer-tools
- platform: cli, cross-platform
- tags: mysql, mariadb, percona-server, database-tuning, configuration-audit, perl, performance-recommendations, innodb, galera-cluster, devops, linux, docker

## Member repositories
- major/MySQLTuner-perl (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:31.304472+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 2026-08-29T17:22:04.403412+00:00, confidence not recorded.
  - readme: https://github.com/major/MySQLTuner-perl (fetched 2026-08-28T04:10:31.304472+00:00, sha 2b4634828e5c)
- Data as of 2026-08-30T08:39:29.467469+00:00.