JetStress (WR1.2): Where storage hardware cache size is used

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JetStressUI 2004 (WR1.2: 6.5.7529.0) uses 'storage hardware cache size' for two places:

  • One is to check the test database size is large enough and to "please make sure that the total database size is at least double the size of the storage hardward cache size".
  • The other is to determine the initial number of threads for the tuning phase. JetStressUI 2004 (6.5.7529.0) initializes this number based on the target IOPS (I/O per seconds) and the cache size.
  • NOTE: JetStressUI 2004 (WR 2.1: 6.5.7726.0) initializes this number to be the number of CPU(s).

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