{
  "id": "memtier-benchmark",
  "title": "Benchmarking Redis Software",
  "url": "https://redis.io/docs/latest/operate/rs/8.0/clusters/optimize/memtier-benchmark/",
  "summary": "Use the `memtier_benchmark` tool to perform a performance benchmark of Redis Software.",
  "content": "\nUse the `memtier_benchmark` tool to perform a performance benchmark of Redis Software.\n\nPrerequisites:\n\n- Redis Software installed\n- A cluster configured\n- A database created\n\nFor help with the prerequisites, see the [Redis Software quickstart](https://redis.io/docs/latest/operate/rs/installing-upgrading/quickstarts/redis-enterprise-software-quickstart).\n\nIt is recommended to run memtier_benchmark on a separate node that is\nnot part of the cluster being tested. If you run it on a node of the\ncluster, be mindful that it affects the performance of both the\ncluster and memtier_benchmark.\n\n```sh\n/opt/redislabs/bin/memtier_benchmark -s $DB_HOST -p $DB_PORT -a $DB_PASSWORD -t 4 -R --ratio=1:1\n```\n\nThis command instructs memtier_benchmark to connect to your Redis\nEnterprise database and generates a load doing the following:\n\n- A 50/50 Set to Get ratio\n- Each object has random data in the value\n\n## Populate a database with testing data\n\nIf you need to populate a database with some test data for a proof of\nconcept, or failover testing, etc. here is an example for you.\n\n```sh\n/opt/redislabs/bin/memtier_benchmark -s $DB_HOST -p $DB_PORT -a $DB_PASSWORD -R -n allkeys -d 500 --key-pattern=P:P --ratio=1:0\n```\n\nThis command instructs memtier_benchmark to connect to your Redis\nEnterprise database and generates a load doing the following:\n\n- Write objects only, no reads\n- A 500 byte object\n- Each object has random data in the value\n- Each key has a random pattern, then a colon, followed by a\n    random pattern.\n\nRun this command until it fills up your database to where you want it\nfor testing. The easiest way to check is on the database metrics page.\n\n![images/rs/memtier_metrics_page.png](https://redis.io/docs/latest/images/rs/memtier_metrics_page.png)\n\nAnother use for memtier_benchmark is to populate a database with data\nfor failure testing.\n",
  "tags": ["docs","operate","rs"],
  "last_updated": "2026-07-23T12:05:56-05:00"
}