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foxhunt/scripts/db_load_test_pgbench.sh
jgrusewski 8d89fe80ff chore: Second cleanup wave - organize root directory 
- Archive: 85 agent .txt files → docs/archive/agents/legacy_txt/
- Scripts: Move 110 shell scripts → scripts/ (keep deploy.sh in root)
- Models: Move 18 .safetensors → ml/models/checkpoints/training_artifacts/
- Delete: 34 directories (~33GB freed) - target/, coverage_*, test artifacts
- Build: Clean 14 build artifacts (.rlib, .o, .pid, binaries)
- Tests: Move 14 .rs files → tests/standalone/
- SQL: Move 5 files → sql/ (keep init-db*.sql for Docker)
- Wave 153: Archive to docs/archive/historical/wave153/
- Docs: Archive 9 markdown files to wave_d/reports/ and historical/

Total impact: ~34GB freed (both waves), root directory cleaned from 583 to ~40 essential files
Directory count reduced from 65 to 31 (52% reduction)
All historical data preserved in organized archive structure
2025-10-30 01:26:02 +01:00

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#!/bin/bash
# PostgreSQL Load Test using pgbench - Foxhunt Trading System
# Tests database performance under increasing concurrent load
set -e
DB_URL="postgresql://foxhunt:foxhunt_dev_password@localhost:5432/foxhunt"
DB_HOST="localhost"
DB_PORT="5432"
DB_NAME="foxhunt"
DB_USER="foxhunt"
DB_PASS="foxhunt_dev_password"
TEST_DURATION=30 # seconds per test
WORKLOAD_FILE="trading_workload.sql"
RESULTS_FILE="DB_LOAD_TEST_RESULTS_$(date +%Y%m%d_%H%M%S).txt"
export PGPASSWORD="$DB_PASS"
echo "========================================" | tee -a "$RESULTS_FILE"
echo "PostgreSQL Load Test - Foxhunt Trading" | tee -a "$RESULTS_FILE"
echo "Using pgbench with custom trading workload" | tee -a "$RESULTS_FILE"
echo "Test Duration: $TEST_DURATION seconds per scenario" | tee -a "$RESULTS_FILE"
echo "Start Time: $(date)" | tee -a "$RESULTS_FILE"
echo "========================================" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
# Function to check database health
check_db_health() {
echo "=== Database Health Check ===" | tee -a "$RESULTS_FILE"
echo "PostgreSQL Version:" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -t -c "SELECT version();" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
echo "Configuration:" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -t -c "SHOW max_connections;" | awk '{print " max_connections: " $1}' | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -t -c "SHOW shared_buffers;" | awk '{print " shared_buffers: " $1}' | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -t -c "SHOW synchronous_commit;" | awk '{print " synchronous_commit: " $1}' | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
echo "Cache Hit Ratio:" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -t -c "SELECT (sum(blks_hit)::float / NULLIF(sum(blks_hit) + sum(blks_read), 0) * 100)::numeric(5,2) || '%' AS cache_hit_ratio FROM pg_stat_database WHERE datname = 'foxhunt';" | awk '{print " " $1}' | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
}
# Function to get baseline table counts
get_baseline_counts() {
echo "=== Baseline Table Counts ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "SELECT 'orders' AS table_name, COUNT(*) FROM orders UNION ALL SELECT 'executions', COUNT(*) FROM executions UNION ALL SELECT 'fills', COUNT(*) FROM fills UNION ALL SELECT 'positions', COUNT(*) FROM positions;" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
}
# Function to run pgbench test
run_pgbench_test() {
local clients=$1
local test_name=$2
echo "========================================" | tee -a "$RESULTS_FILE"
echo "TEST: $test_name" | tee -a "$RESULTS_FILE"
echo "Concurrent Clients: $clients" | tee -a "$RESULTS_FILE"
echo "========================================" | tee -a "$RESULTS_FILE"
# Run pgbench
pgbench -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" \
-c "$clients" -j $(( clients > 4 ? 4 : clients )) \
-T "$TEST_DURATION" \
-f "$WORKLOAD_FILE" \
-n 2>&1 | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
# Check connection pool status
echo "=== Connection Pool Status ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "SELECT state, COUNT(*) FROM pg_stat_activity WHERE datname = 'foxhunt' GROUP BY state ORDER BY COUNT(*) DESC;" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
# Check for lock contention
echo "=== Lock Contention ===" | tee -a "$RESULTS_FILE"
local locks_waiting=$(psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -t -c "SELECT COUNT(*) FROM pg_locks WHERE NOT granted;" | tr -d ' ')
echo " Locks waiting: $locks_waiting" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
# Check deadlock count
echo "=== Deadlock Statistics ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "SELECT datname, deadlocks, conflicts FROM pg_stat_database WHERE datname = 'foxhunt';" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
}
# Function to analyze query performance
analyze_query_performance() {
echo "========================================" | tee -a "$RESULTS_FILE"
echo "QUERY PERFORMANCE ANALYSIS" | tee -a "$RESULTS_FILE"
echo "========================================" | tee -a "$RESULTS_FILE"
echo "=== Table Statistics ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "
SELECT relname,
n_tup_ins AS inserts,
n_tup_upd AS updates,
n_tup_del AS deletes,
seq_scan,
idx_scan,
CASE WHEN seq_scan + idx_scan > 0
THEN (idx_scan::float / (seq_scan + idx_scan) * 100)::numeric(5,2)
ELSE 0 END AS idx_scan_pct
FROM pg_stat_user_tables
WHERE schemaname = 'public'
AND relname IN ('orders', 'executions', 'fills', 'positions')
ORDER BY n_tup_ins DESC;
" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
echo "=== Index Usage ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "
SELECT tablename, indexname, idx_scan, idx_tup_read, idx_tup_fetch
FROM pg_stat_user_indexes
WHERE schemaname = 'public'
AND tablename IN ('orders', 'executions', 'fills', 'positions')
ORDER BY idx_scan DESC
LIMIT 10;
" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
}
# Function to check resource utilization
check_resource_utilization() {
echo "========================================" | tee -a "$RESULTS_FILE"
echo "RESOURCE UTILIZATION" | tee -a "$RESULTS_FILE"
echo "========================================" | tee -a "$RESULTS_FILE"
echo "=== Database Size ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "
SELECT datname, pg_size_pretty(pg_database_size(datname)) AS size
FROM pg_database
WHERE datname = 'foxhunt';
" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
echo "=== Table Sizes ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "
SELECT relname,
pg_size_pretty(pg_total_relation_size(relid)) AS total_size,
pg_size_pretty(pg_relation_size(relid)) AS table_size,
pg_size_pretty(pg_total_relation_size(relid) - pg_relation_size(relid)) AS index_size
FROM pg_stat_user_tables
WHERE schemaname = 'public'
AND relname IN ('orders', 'executions', 'fills', 'positions')
ORDER BY pg_total_relation_size(relid) DESC;
" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
echo "=== Final Cache Hit Ratio ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -t -c "
SELECT (sum(blks_hit)::float / NULLIF(sum(blks_hit) + sum(blks_read), 0) * 100)::numeric(5,2) || '%' AS cache_hit_ratio
FROM pg_stat_database
WHERE datname = 'foxhunt';
" | awk '{print " " $1}' | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
}
# Function to get final table counts
get_final_counts() {
echo "=== Final Table Counts ===" | tee -a "$RESULTS_FILE"
psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -c "
SELECT 'orders' AS table_name, COUNT(*) FROM orders
UNION ALL SELECT 'executions', COUNT(*) FROM executions
UNION ALL SELECT 'fills', COUNT(*) FROM fills
UNION ALL SELECT 'positions', COUNT(*) FROM positions;
" | tee -a "$RESULTS_FILE"
echo "" | tee -a "$RESULTS_FILE"
}
# Main test execution
main() {
echo "Starting PostgreSQL Load Test with pgbench..."
# Check if workload file exists
if [ ! -f "$WORKLOAD_FILE" ]; then
echo "ERROR: Workload file $WORKLOAD_FILE not found!" | tee -a "$RESULTS_FILE"
exit 1
fi
# Initial health check
check_db_health
get_baseline_counts
# Run tests with increasing concurrency
run_pgbench_test 1 "BASELINE (Single Client)"
run_pgbench_test 10 "MODERATE LOAD (10 Clients)"
run_pgbench_test 50 "HIGH LOAD (50 Clients)"
run_pgbench_test 100 "STRESS TEST (100 Clients)"
# Post-test analysis
analyze_query_performance
check_resource_utilization
get_final_counts
echo "========================================" | tee -a "$RESULTS_FILE"
echo "Test Completed: $(date)" | tee -a "$RESULTS_FILE"
echo "Results saved to: $RESULTS_FILE" | tee -a "$RESULTS_FILE"
echo "========================================" | tee -a "$RESULTS_FILE"
echo ""
echo "Test complete! Results saved to: $RESULTS_FILE"
}
# Run main test
main
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