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HammerDB

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description HammerDB Overview

HammerDB is an open source load testing tool designed for evaluating database system performance. It simulates realistic database workloads using TPC benchmarks like TPC-C to generate accurate performance metrics. This makes it useful for developers and database administrators seeking to assess scalability, stability, and overall efficiency of databases across different platforms.

help HammerDB FAQ

Does HammerDB run official TPC benchmarks?

HammerDB runs TPC-C-like and TPC-H-like workloads, but its TPROC-C and TPROC-H results are not official audited TPC results. It is best used for repeatable internal database testing rather than publishing certified TPC numbers.

Which databases can HammerDB test?

HammerDB supports major relational databases such as Oracle Database, SQL Server, PostgreSQL, MySQL, MariaDB, and Db2. That broad support is why it is often used to compare hardware or cloud database configurations.

Can HammerDB be automated from the command line?

Yes, HammerDB includes scripting and command-line workflows in addition to a graphical interface. Teams commonly use its Tcl-based scripts to repeat the same load test after changing CPU, storage, or database parameters.

What is the difference between TPROC-C and TPROC-H in HammerDB?

TPROC-C models an order-entry OLTP workload similar in shape to TPC-C. TPROC-H models analytic decision-support queries, closer to the kind of workload TPC-H represents.

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