diff --git a/inventory/host_vars/db-koji01.phx2.fedoraproject.org b/inventory/host_vars/db-koji01.phx2.fedoraproject.org
index 587e561e9c..39da3ec7d9 100644
--- a/inventory/host_vars/db-koji01.phx2.fedoraproject.org
+++ b/inventory/host_vars/db-koji01.phx2.fedoraproject.org
@@ -45,5 +45,5 @@ nrpe_procs_warn: 600
 nrpe_procs_crit: 700
 
 db_backup_dir: ['/backups']
-shared_buffers: "30GB"
-effective_cache_size: "90GB"
+shared_buffers: "15GB"
+effective_cache_size: "45GB"
diff --git a/roles/postgresql_server/templates/postgresql.conf b/roles/postgresql_server/templates/postgresql.conf
index cbaaaaeb82..95fa94ce80 100644
--- a/roles/postgresql_server/templates/postgresql.conf
+++ b/roles/postgresql_server/templates/postgresql.conf
@@ -121,7 +121,7 @@ shared_buffers = {{ shared_buffers }}   # min 128kB or max_connections*16kB
 
 # 8 MB is probably on the high side.  We can probably do with 4MB.  But we
 # were seeing a problem and we have the RAM so we're going to try this.   
-work_mem = 157286kB
+work_mem = 8GB
 maintenance_work_mem = 2GB              # min 1MB
 #max_stack_depth = 2MB                  # min 100kB                       
 
@@ -504,4 +504,4 @@ default_text_search_config = 'pg_catalog.english'
 #custom_variable_classes = ''           # list of custom variable class names
 #
 # Number of concurrent i/o operations at the same time. The default is 1.
-effective_io_concurrency = 100
+effective_io_concurrency = 200