HASHCELL parameter: Difference between revisions
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==Summary== | ==Summary== | ||
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==Description== | ==Description== | ||
<p>The HASHCELL parameter indicates the number of hash cells to allocate for each buffer in the buffer pool. Hash cells are used to locate database pages in the buffer pool based on file, table, and page number. </p> | <p>The HASHCELL parameter indicates the number of hash cells to allocate for each buffer in the buffer pool. Hash cells are used to locate database pages in the buffer pool based on file, table, and page number. </p> | ||
<p>The default (and minimum) value for HASHCELL is 3 and the maximum value is 7. | <p>The default (and minimum) value for HASHCELL is 3 and the maximum value is 7. It is recommended that this parameter be reset from its default value only when running with <var>[[AMPSUBS_parameter|AMPSUBS]]</var>>0.</p> | ||
[[Category:System | [[Category:System parameters]] | ||
[[Category:Parameters]] | [[Category:Parameters]] | ||
Latest revision as of 12:51, 28 October 2014
Hash cells per buffer
Summary
- Default value
- 3
- Parameter type
- System
- Where set
- On User 0's parameter line
- Related products
- All
- Introduced
- Model 204 V7.4
Description
The HASHCELL parameter indicates the number of hash cells to allocate for each buffer in the buffer pool. Hash cells are used to locate database pages in the buffer pool based on file, table, and page number.
The default (and minimum) value for HASHCELL is 3 and the maximum value is 7. It is recommended that this parameter be reset from its default value only when running with AMPSUBS>0.