feat: configure database connection pool parameters

Author: Alwayswithme

store/db/db.go

@@ -1,6 +1,9 @@
 package db
 
 import (
+	"runtime"
+	"time"
+
 	"github.com/pkg/errors"
 
 	"github.com/usememos/memos/server/profile"
@@ -28,5 +31,10 @@ func NewDBDriver(profile *profile.Profile) (store.Driver, error) {
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to create db driver")
 	}
+
+	cores := runtime.NumCPU()
+	driver.GetDB().SetMaxOpenConns(cores * 2)
+	driver.GetDB().SetMaxIdleConns(cores)
+	driver.GetDB().SetConnMaxLifetime(time.Minute * 5)
 	return driver, nil
 }