29 lines
1.6 KiB
C
29 lines
1.6 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2009 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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/*
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* STP_PARMS.H - String pool parameters
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*/
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#define INITIAL_STP_PAGES 12 /* This is in 8K pages */
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#define STP_PAGE_SIZE 8192 /* if necessary, change this under appropriate ifdefs for different platforms, or, use macros from
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* mdefsp.h */
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#define STP_INITSIZE (12 * STP_PAGE_SIZE) /* default initial size of string pool */
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#define STP_MAXINITSIZE (61035 * STP_PAGE_SIZE) /* maximum initial size of string pool */
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#define STP_INITSIZE_REQUESTED (INITIAL_STP_PAGES * STP_PAGE_SIZE) /* requested size of string pool */
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#define STP_MAXITEMS 8192 /* initial number of mval's for garbage collection; also grow by this value*/
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#define STP_NUM_INCRS 4 /* number of increments on the sliding scale used to grow string pool. Should be a power of 2 so that
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* so that divides can be done as shifts */
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#define STP_LOWRECLAIM_LEVEL(x) ((x >> 2) + (x >> 3) - (x >> 4)) /* level of available string pool (after reclaim) to
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* count as a low reclaim pass (31.25%) */
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#define STP_MAXLOWRECLAIM_PASSES 4 /* after compaction, if at least STP_LOWRECLAIM_LEVEL of string pool is not free for
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* STP_MAXLOWRECLAIM_PASSES, force an expansion */
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