Posted on by HammerDB

HammerDB v5.0 Released – Powered by Tcl 9.0 and Single-File Executables

🚀 We’re excited to announce the release of HammerDB v5.0, a major leap forward for the world’s leading open-source database benchmarking tool. With this release, we’ve delivered the HammerDB we’ve always envisioned—modern, portable, and more powerful than ever.

Built on Tcl/Tk 9.0—the first major upgrade in over 27 years—HammerDB v5.0 brings a fully streamlined experience, enhanced performance, and unmatched ease of installation across platforms.

🧪 Benchmark Any Major Database

Whether you’re running MariaDB, PostgreSQL, Oracle, SQL Server, MySQL, or IBM Db2, HammerDB v5.0 makes comparing databases, faster, easier, and more consistent across platforms than ever before.

👉 Download HammerDB v5.0 now and start benchmarking with ease.

✅ Single-File Executables

No more juggling directories—v5.0 introduces standalone binaries for:

  • hammerdb (Graphical User Interface)

  • hammerdbcli (Command Line Interface)

  • hammerdbws (Web Service)

Each tool is now delivered as a single file with everything you need bundled inside. While Python dependencies remain external, they’re still fully supported via the familiar pylib directory.

✅ Effortless Installation

Getting started is now simpler than ever, with native packages for major platforms:

  • .deb packages for Ubuntu/Debian

  • .rpm packages for Red Hat/CentOS/Fedora

  • Native builds for Windows and Linux

  • ARM support coming soon

✅ Improved Windows Thread Handling

In earlier versions, Windows required 3x the threads per virtual user compared to Linux. With Tcl 9.0, HammerDB v5.0 now uses a 1:1 thread-to-virtual-user model across all platforms—bringing consistency and improved efficiency to Windows environments.

⚡ Performance Enhancements

Thanks to the Tcl 9 upgrade and native C package ports, v5.0 delivers internal performance boosts:

  • Up to 2–5% gains on TPROC-C workloads

  • Minimal changes for TPROC-H (by design)

While HammerDB benchmarks databases—not itself—these improvements can impact comparative results against earlier versions.

🔓 Still 100% Open Source

HammerDB remains fully open source under the GNU GPL v3.0. The source code is available on GitHub, and you can still build from source. Developer partners also have access to a special edition with the full directory structure of previous versions.

👉 Read the full changelog on GitHub

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