This section explains how to estimate the size of the memory required for a HiRDB single server configuration. The topics covered include:

• Memory allocation
• Calculation of required memory
• Formulas for shared memory used by a unit controller
• Formulas for shared memory used by a single server
• Formulas for size of shared memory used by global buffers
• Formulas for size of memory required during SQL execution
• Formula for size of memory required during SQL preprocessing
• Formula for size of memory required during BLOB-type data retrieval or updating
• Formula for size of memory required during block transfer or array FETCH

Organization of this section

15.1.1 Memory allocation

15.1.2 Calculation of required memory

15.1.3 Formulas for shared memory used by a unit controller

15.1.4 Formulas for shared memory used by a single server

15.1.5 Formula for size of shared memory used by global buffers

15.1.6 Formulas for size of memory required during SQL execution

15.1.7 Formula for size of memory required during SQL preprocessing

15.1.8 Formula for size of memory required during BLOB data retrieval or updating (HiRDB single server configuration)

15.1.9 Formula for size of memory required during block transfer or array FETCH

15.1.10 Memory required by in-memory data processing