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Testing Your Queries and Performance

Warning

SingleStore 9.0 gives you the opportunity to preview, evaluate, and provide feedback on new and upcoming features prior to their general availability. In the interim, SingleStore 8.9 is recommended for production workloads, which can later be upgraded to SingleStore 9.0.

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Running Queries

Hopefully at this point you have your data in SingleStore. You can check this by running some basic SELECT statements within the SQL Editor. Next, you may want to try out some queries that you were running with your last database. Generally, you’ll want to run queries twice to get a true understanding of the runtime as the first run must create and cache the query plan.

See why here.

Visual Explain

One great feature of SingleStore is Visual Explain. If you encounter a situation in which your query is taking longer than expected, highlight the desired query in the SQL Editor and click the Visual Explain icon to the left of the Run button. The icon resembles a tree. After clicking, you may then choose between EXPLAIN and PROFILE. Refer to SingleStore Visual Explain to learn how to navigate the visual explanation or profiling of your query.

Once you identify a bottleneck, you should be able to make changes either to your schema or to your query itself in order to improve speed.

You can manually (non-visually) run EXPLAIN or PROFILE from any client; see the links above for details on the commands.

Benchmarking

If you’re moving over from any of the databases we’ve talked about so far, you are probably interested in improving performance. At SingleStore, we’ve developed an easy-to-use tool for benchmarking called dbbench. You can check that out here.

Once you’ve installed the packages to your host machine, you can walk through this tutorial. All you will have to do is change the host from 127.0.0.1 to the endpoint listed for your cluster in the Cloud Portal (it should look something like: svc-xxx-dml.aws-virginia-1.db.memsql.com). The port will remain 3306, as listed. You can then move onto testing based on your application workload.

Last modified: August 1, 2023

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

  1. (Optional) Run the following command to view the associated signature files.

    curl undefined

  2. Download the signature file from the SingleStore release server.

    • Option 1: Click the Download Signature button next to the SingleStore file.

    • Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.

    • Option 3: Run the following command to download the signature file.

      curl -O undefined

  3. After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

    echo -n undefined |
        cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
          --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
          --bundle undefined \
          --new-bundle-format -
    Verified OK