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PIOB is PL/SQL Input Output benchmarking tool.
It generates different kinds of I/O using Oracle database means and measures it.

PIOB Web Site



  • OS and platform independent because it is implemented purely in Oracle SQL*Plus, SQL and PL/SQL
  • does not use Oracle AWR (AWR requires additional licensing)
  • takes snapshots of only relevant performance metrics
  • is instrumented for monitoring its progress
  • SEED table is tuned to have 1 row per 8K block for more precise calculation of random I/O
  • uses RECYCLE buffer of minimal size to reduce caching (can be turned off)
  • work can be limited by amount of work cycles or by timer
  • can be gracefully stopped anytime

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Developers, Architects, System Administrators

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