josebaroni <- postgres tweaks e retest

participantes/josebaroni/README.md

@@ -10,10 +10,4 @@ Stack:
 
 Autor:
 - [LinkedIn](https://www.linkedin.com/in/josebaroni/)
-- [Repositório](https://github.com/zebaroni/rinha-backend-2024-q1)
-
-Resultados:
-- mean: **2ms**
-- max: **18ms**
-
-![Test Screenshot](https://raw.githubusercontent.com/zebaroni/rinha-backend-2024-q1/master/test-ss.png)
+- [Repositório](https://github.com/zebaroni/rinha-backend-2024-q1)

participantes/josebaroni/config/database/postgresql.conf

@@ -1,20 +1,26 @@
 listen_addresses = '*'
-max_connections = 250
+max_connections = 100
 superuser_reserved_connections = 3
 unix_socket_directories = '/var/run/postgresql'
-shared_buffers = 512MB
+shared_buffers = 200MB
 work_mem = 4MB
 maintenance_work_mem = 256MB
-effective_cache_size = 1GB
-wal_buffers = 64MB
+effective_cache_size = 200MB
+wal_buffers = 128MB
 checkpoint_completion_target = 0.9
-random_page_cost = 4.0
-effective_io_concurrency = 10
+random_page_cost = 2.0
+effective_io_concurrency = 3
 autovacuum = on
 log_statement = 'none'
 log_duration = off
 log_lock_waits = off
 log_error_verbosity = terse
 log_min_messages = panic
 log_min_error_statement = panic
-synchronous_commit=off
+max_wal_size=8GB
+checkpoint_timeout=500
+
+# blz, to apelando, mas ainda é persistente... deixa durabilidade pro meu trampo kek
+# caso ache muita apelacao, só remover essas 2 linhas
+synchronous_commit=off
+fsync=off