Difference between revisions of "Tuning the PostgreSQL Database"

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Line 4: Line 4:
  
 
shared_buffers='''1/4 of the available memory'''
 
shared_buffers='''1/4 of the available memory'''
 +
 
effective_cache_size = '''1/2 of available memory'''
 
effective_cache_size = '''1/2 of available memory'''
  
Line 12: Line 13:
 
  log_min_duration_statement = 5000
 
  log_min_duration_statement = 5000
 
  synchronous_commit = off  
 
  synchronous_commit = off  
  work_mem = 4MB
+
  work_mem = 10MB
 
  wal_buffers= 10MB
 
  wal_buffers= 10MB
 
  commit_delay 10
 
  commit_delay 10
 
  max_locks_per_transaction=3000
 
  max_locks_per_transaction=3000
work_mem=4
 
  
For 2GB system
+
 
  effective_cache_size = 1GB
+
Example for a server with 16GB of RAM
  shared_buffers = 500MB
+
  effective_cache_size = 8GB
 +
  shared_buffers = 4000MB

Revision as of 08:38, 13 October 2016

Tuning of postgres is done via the postgresql.conf file.

Settings based on available RAM

shared_buffers=1/4 of the available memory

effective_cache_size = 1/2 of available memory

Standard Settings

autovacuum_max_workers = 1
checkpoint_completion_target = 0.9
checkpoint_segments = 32
log_min_duration_statement = 5000
synchronous_commit = off 
work_mem = 10MB
wal_buffers= 10MB
commit_delay 10
max_locks_per_transaction=3000


Example for a server with 16GB of RAM

effective_cache_size = 8GB
shared_buffers = 4000MB