CacheParams.h

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00001 /*
00002 // $Id: //open/dev/fennel/cache/CacheParams.h#11 $
00003 // Fennel is a library of data storage and processing components.
00004 // Copyright (C) 2005-2009 The Eigenbase Project
00005 // Copyright (C) 2005-2009 SQLstream, Inc.
00006 // Copyright (C) 2005-2009 LucidEra, Inc.
00007 // Portions Copyright (C) 1999-2009 John V. Sichi
00008 //
00009 // This program is free software; you can redistribute it and/or modify it
00010 // under the terms of the GNU General Public License as published by the Free
00011 // Software Foundation; either version 2 of the License, or (at your option)
00012 // any later version approved by The Eigenbase Project.
00013 //
00014 // This program is distributed in the hope that it will be useful,
00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017 // GNU General Public License for more details.
00018 //
00019 // You should have received a copy of the GNU General Public License
00020 // along with this program; if not, write to the Free Software
00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 */
00023 
00024 #ifndef Fennel_CacheParams_Included
00025 #define Fennel_CacheParams_Included
00026 
00027 #include "fennel/device/DeviceAccessSchedulerParams.h"
00028 
00029 FENNEL_BEGIN_NAMESPACE
00030 
00031 class ConfigMap;
00032 
00036 class FENNEL_CACHE_EXPORT CacheParams
00037 {
00038 public:
00039     static ParamName paramMaxPages;
00040     static ParamName paramPagesInit;
00041     static ParamName paramPageSize;
00042     static ParamName paramIdleFlushInterval;
00043     static ParamName paramFreshmenQueuePercentage;
00044     static ParamName paramPageHistoryQueuePercentage;
00045     static ParamName paramPrefetchPagesMax;
00046     static ParamName paramPrefetchThrottleRate;
00047 
00048     static uint defaultMemPagesMax;
00049     static uint defaultMemPagesInit;
00050     static uint defaultPageSize;
00051     static uint defaultIdleFlushInterval;
00052     static uint defaultFreshmenQueuePercentage;
00053     static uint defaultPageHistoryQueuePercentage;
00054     static uint defaultPrefetchPagesMax;
00055     static uint defaultPrefetchThrottleRate;
00056 
00060     DeviceAccessSchedulerParams schedParams;
00061 
00066     uint nMemPagesMax;
00067 
00071     uint cbPage;
00072 
00076     uint nMemPagesInit;
00077 
00081     uint idleFlushInterval;
00082 
00087     uint freshmenQueuePercentage;
00088 
00094     uint pageHistoryQueuePercentage;
00095 
00099     uint prefetchPagesMax;
00100 
00106     uint prefetchThrottleRate;
00107 
00111     explicit CacheParams();
00112 
00116     void readConfig(ConfigMap const &configMap);
00117 };
00118 
00119 FENNEL_END_NAMESPACE
00120 
00121 #endif
00122 
00123 // End CacheParams.h

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