Perf improve

README.md

@@ -181,9 +181,9 @@ Check [benchmark](benchmark/README.md)
 ## TODO
 
 * SSL support
-* Performance improvement:
-  granular locking on client/server list
-  active wait list processing
+* Session pooling
+* Enrich Statistics & Output
+* Sharding?
 
 ## License
 

benchmark/README.md

@@ -1,6 +1,6 @@
 # PostgreSQL Connection Pool Benchmark Suite
 
-Comprehensive benchmarking suite for comparing **pgpool** vs **pgbouncer** vs **direct PostgreSQL** connections using the industry-standard `pgbench` tool.
+Comprehensive benchmarking suite for comparing **pgpool** vs **pgcat** vs **pgbouncer** vs **direct PostgreSQL** connections using the industry-standard `pgbench` tool.
 
 ## Overview
 
@@ -14,14 +14,18 @@ This benchmark suite tests:
 
 ```
 benchmark/
-├── config/               # Configuration files
-│   ├── pgpool.ini      # pgpool configuration
+├── config/              # Configuration files
+│   ├── pgpool.ini       # pgpool configuration
 │   ├── pgbouncer.ini    # pgbouncer configuration
+│   ├── pgcat.toml       # pgcat configuration
 │   └── userlist.txt     # pgbouncer auth file
 ├── scripts/             # Benchmark scripts
 │   ├── setup.sh         # Environment setup
 │   ├── run_benchmark.sh # Main benchmark runner
-│   ├── generate_report.sh # Report generator
+│   ├── generate_report.sh # Report gener
+
+4. **Connection Time** - Lower is better
+   - Overhead of establishing conator
 │   └── cleanup.sh       # Cleanup script
 ├── results/             # Benchmark results (auto-generated)
 │   └── YYYYMMDD_HHMMSS/ # Timestamped results
@@ -31,11 +35,11 @@ benchmark/
 
 ## Prerequisites
 
-1. **PostgreSQL** (tested with PostgreSQL 15+)
+1. **PostgreSQL** (tested with PostgreSQL 16+)
 2. **pgbench** (included with PostgreSQL client tools)
 3. **pgpool** (built from this repository)
-4. **pgbouncer** (optional, for comparison)
-5. **Go 1.22+** (to build pgpool)
+4. **pgcat** ([built from git repository](https://github.com/postgresml/pgcat))
+5. **pgbouncer** (1.24.0)
 
 ### Installation
 
@@ -91,18 +95,29 @@ max_clients = 200
 
 Edit `config/pgbouncer.ini` and `config/userlist.txt` with your credentials.
 
+
+#### pgcat Configuration
+
+Edit `pgcat.toml` with test db and credentials.
+
 ### 3. Start Poolers
 
 #### Start pgpool
 ```bash
 # In terminal 1
 cd /path/to/pgpool
-./pgpool -conf benchmark/config/pgpool.ini -debug
+./pgpool -conf benchmark/config/pgpool.ini
 ```
 
-#### Start pgbouncer (optional)
+#### Start pgbouncer
 ```bash
 # In terminal 2
+cargo run --release
+```
+
+#### Start pgbouncer
+```bash
+# In terminal 3
 cd benchmark/config
 pgbouncer -d pgbouncer.ini
 ```
@@ -139,7 +154,7 @@ export DB_NAME=postgres
 
 # Pool ports
 export PGPOOL_PORT=5433
-export PGBOUNCER_PORT=6432
+export PGBOUNCER_PORT=6433
 
 # Benchmark configuration
 export DURATION=60                          # seconds per test
@@ -171,12 +186,7 @@ The TPC-B workload is automatically initialized by pgbench with the specified sc
    - Mean response time
    - Overall user experience
 
-3. **P95/P99 Latency** - Lower is better
-   - Tail latency
-   - Worst-case performance
-   - Critical for user experience
-
-4. **Connection Time** - Lower is better
+3. **Connection Time** - Lower is better
    - Overhead of establishing connections
    - Important for connection churn scenarios
 

benchmark/config/pgbouncer.ini

@@ -3,7 +3,7 @@ postgres = host=127.0.0.1 port=5432 dbname=postgres
 
 [pgbouncer]
 listen_addr = 127.0.0.1
-listen_port = 6432
+listen_port = 6433
 auth_type = scram-sha-256
 auth_file = userlist.txt