Datafold vs Percona pstress

Datafold has no write-up on Specifiction yet; its figures are above.

Percona pstress is a free, open-source Linux tool for concurrent database and crash-recovery testing. It creates randomized transactions from command-line options and runs concurrent workloads against a single server or cluster. Documented uses include checking database features, regressions, and recovery behavior for MySQL, Percona Server, and Percona XtraDB Cluster. A multithreaded C++ generator works with a Bash driver that coordinates concurrency and recovery steps. The driver can stop and restart a server between steps, change server variables, and continue with the preceding step’s data directory. Options control thread count, tables, records, transaction size, and SQL-operation probabilities. Trial directories normally retain the data directory, error logs, thread logs, mysqld binaries, and configuration. Building requires CMake 2.6 or later, a C++ compiler 4.7 or later, and development files for the target database version or fork. The repository identifies GPL-2.0 licensing. pstress runs self-hosted and does not verify that successful queries returned correct data.