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comparison config/blitz.config @ 30:5a2eeff2a043

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Update configuration to cover optimistic batcher
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 12 Jun 2010 10:41:30 +0100
parents 3d83b0e0b75a
children
comparison
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29:e11623cfc457 30:5a2eeff2a043
124 logCkpts = new Boolean(false); 124 logCkpts = new Boolean(false);
125 125
126 // Maximum number of entry instances to cache for a particular Entry type 126 // Maximum number of entry instances to cache for a particular Entry type
127 // 127 //
128 entryReposCacheSize = 4096; 128 entryReposCacheSize = 4096;
129 // entryReposCacheSize = 100; 129 // entryReposCacheSize = 128;
130 // entryReposCacheSize = 512; 130 // entryReposCacheSize = 512;
131
132 cacheEntriesPerPartition = 32;
131 133
132 // Enable generic readahead for all types by setting this to non-zero. 134 // Enable generic readahead for all types by setting this to non-zero.
133 // Actual value determines how many Entry's will be loaded from disk 135 // Actual value determines how many Entry's will be loaded from disk
134 // when readahead is activated. Note this value should be smaller than 136 // when readahead is activated. Note this value should be smaller than
135 // cache size. As per cache size above, this can be set per Entry using 137 // cache size. As per cache size above, this can be set per Entry using
191 193
192 // Maximum number of task threads to be used in posting remote events 194 // Maximum number of task threads to be used in posting remote events
193 // and dispatching blocked takes or reads 195 // and dispatching blocked takes or reads
194 // 196 //
195 maxTaskThreads = 8; 197 maxTaskThreads = 8;
196 maxEventProcessors = 4; 198 maxEventProcessors = 4;
197 199
198 storageModel = new Transient(); 200 storageModel = new Transient();
199 201
200 // storageModel = new TimeBarrierPersistent(true, true, 10000, 524288, 10000); 202 // storageModel = new TimeBarrierPersistent(true, true, 10000, 524288, 5000);
201 203
202 // Persistent storage settings 204 // Persistent storage settings
203 // Note: The third parameter (batching time) can radically affect 205 // Note: The third parameter (batching time) can radically affect
204 // throughput in concurrent conditions. You're advised to try various 206 // throughput in concurrent conditions. You're advised to try various
205 // settings for your desired load as variations in OS and hard-disk 207 // settings for your desired load as variations in OS and hard-disk
206 // performance determine what is appropriate for each machine. 208 // performance determine what is appropriate for each machine.
207 // 209 //
208 // A safe setting to start with is 10ms but you might also wish to try 0ms 210 // Note: the fourth parameter has changed behaviour. Most users likely have this set to true
209 // Use this setting for local/embedded usage 211 // which will select the concurrent (production-tested) batcher and represents the stable option.
210 // 212 // Setting this parameter to false no longer selects the old (low performance) serial batcher,
211 213 // rather it enables an optimistic batcher that gives even higher performance than the concurrent
212 // For raw, single-threaded benchmarks, use 0 log buffering time 214 // batcher.
213 // storageModel = new Persistent(true, true, 0, true, 10000, 32768); 215 //
214 // notifytest storageModel = new Persistent(true, true, 0, true, 10, 32768); 216 // storageModel = new Persistent(true, true, 0, 500000, true, 10000, 32768);
215 217 // storageModel = new Persistent(true, true, 1, true, 10000, 32768);
216 // For concurrent benchmark or application use non-zero log buffering time 218
217 // storageModel = new Persistent(true, true, 10, true, 10000, 32768); 219 statsDump = 60000;
218
219 statsDump = 60000;
220 220
221 // Enable standard destroy semantics - by default, Blitz does NOT 221 // Enable standard destroy semantics - by default, Blitz does NOT
222 // delete state at destroy. Enable that feature here and invoke 222 // delete state at destroy. Enable that feature here and invoke
223 // BlitzAdmin::shutdown to perform a shutdown whilst retaining state 223 // BlitzAdmin::shutdown to perform a shutdown whilst retaining state
224 compliantDestroy = new Boolean(false); 224 compliantDestroy = new Boolean(false);