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B. APPENDIX - EVALUATION B.6. Performance Validation File 3 #fsync = on # turns forced synchronization on or off #synchronous_commit = on # immediate fsync at commit #wal_sync_method = fsync # the default is the first option # supported by the operating system: # open_datasync # fdatasync # fsync # fsync_writethrough # open_sync #full_page_writes = on # recover from partial page writes #wal_buffers = 64kB # min 32kB # (change requires restart) #wal_writer_delay = 200ms # 1-10000 milliseconds #commit_delay = 0 # range 0-100000, in microseconds #commit_siblings = 5 # range 1-1000 # - Checkpoints - #checkpoint_segments = 3 # in logfile segments, min 1, 16MB each #checkpoint_timeout = 5min # range 30s-1h #checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 - 1.0 #checkpoint_warning = 30s # 0 is off # - Archiving - #archive_mode = off # allows archiving to be done # (change requires restart) #archive_command = ’’ # command to use to archive a logfile segment #archive_timeout = 0 # force a logfile segment switch after this # time; 0 is off 148
B. APPENDIX - EVALUATION B.6. Performance Validation File 3 #----------------------------------------------------------------------------- # QUERY TUNING #----------------------------------------------------------------------------- # - Planner Method Configuration - #enable_bitmapscan = on #enable_hashagg = on #enable_hashjoin = on #enable_indexscan = on #enable_mergejoin = on #enable_nestloop = on #enable_seqscan = on #enable_sort = on #enable_tidscan = on # - Planner Cost Constants - #seq_page_cost = 1.0 # measured on an arbitrary scale #random_page_cost = 4.0 # same scale as above #cpu_tuple_cost = 0.01 # same scale as above #cpu_index_tuple_cost = 0.005 # same scale as above #cpu_operator_cost = 0.0025 # same scale as above #effective_cache_size = 128MB # - Genetic Query Optimizer - #geqo = on #geqo_threshold = 12 #geqo_effort = 5 # range 1-10 #geqo_pool_size = 0 # selects default based on effort #geqo_generations = 0 # selects default based on effort #geqo_selection_bias = 2.0 # range 1.5-2.0 # - Other Planner Options - 149
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Universidade Nova de Lisboa Faculda
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To my family and friends, who suppo
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Sumário Entre os sectores de tecno
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CONTENTS 3.5 Modifying the Configur
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List of Figures 2.1 Virtual applian
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List of Listings 1.1 Apache configu
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1 Introduction This dissertation pr
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1. INTRODUCTION 1.2. Problem Descri
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1. INTRODUCTION 1.5. Document Organ
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2. STATE OF THE ART AND RELATED WOR
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3 An application reconfiguration fr
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3. AN APPLICATION RECONFIGURATION F
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4. AN IMPLEMENTATION 4.2. Parser Ge
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4. AN IMPLEMENTATION 4.4. Data Stru
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4. AN IMPLEMENTATION 4.4. Data Stru
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4. AN IMPLEMENTATION 4.5. Original
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4. AN IMPLEMENTATION 4.6. Generatio
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4. AN IMPLEMENTATION 4.7. Generic t
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5 Framework Evaluation Chapter 3 pr
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5. FRAMEWORK EVALUATION 5.2. Operat
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5. FRAMEWORK EVALUATION 5.3. Perfor
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5. FRAMEWORK EVALUATION 5.3. Perfor
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6. INTEGRATION WITH VIRTU 6.2. VIRT
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6. INTEGRATION WITH VIRTU 6.4. SmAR
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6. INTEGRATION WITH VIRTU 6.4. SmAR
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6. INTEGRATION WITH VIRTU 6.5. Summ
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7. CONCLUSION AND FUTURE WORK 7.1.
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A.1 OGC sequence diagram A Appendix
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B.1 MySQL Configuration file # # Th
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B. APPENDIX - EVALUATION B.1. MySQL
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B. APPENDIX - EVALUATION B.2. Apach
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Dissertaç ˜ao de Mestrado Mestrado em Engenharia Informática Jo ...

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