# Performance Optimization (Laravel) > Optimasi query, masalah N+1, eager loading, lazy loading, strategi caching, pengindeksan database, alat profiling - 22 pertanyaan wawancara - Senior - [Pertanyaan Wawancara: Laravel](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara.md) ## 1. Apa itu masalah N+1 di Laravel? **Jawaban** Masalah N+1 terjadi ketika Eloquent menjalankan satu query untuk mengambil koleksi, lalu query tambahan per item untuk memuat sebuah relasi. Hal ini melipatgandakan akses database dan sangat menurunkan performa pada volume besar. Menggunakan eager loading dengan with() memuat semua relasi dalam satu query tambahan alih-alih N query. ## 2. Metode mana yang harus digunakan untuk menyelesaikan masalah N+1 saat memuat relasi? **Jawaban** Metode with() melakukan eager loading yang memuat relasi dalam satu query tambahan. Alih-alih menjalankan satu query per model saat mengakses relasi, semua relasi dimuat di awal. Hal ini secara drastis mengurangi jumlah query SQL dan meningkatkan performa. ## 3. Apa perbedaan antara eager loading dan lazy loading? **Jawaban** Eager loading memuat relasi segera bersama query utama melalui with(), sedangkan lazy loading memuat relasi sesuai permintaan saat pertama kali diakses. Lazy loading dapat menyebabkan masalah N+1 jika relasi diakses dalam sebuah loop. Eager loading direkomendasikan ketika relasi akan digunakan untuk menghindari query berulang. ## 19 pertanyaan lagi tersedia - Apa peran Cache::remember() di Laravel? - Apa perbedaan antara Cache::remember() dan Cache::rememberForever()? Daftar gratis: https://sharpskill.dev/id/login ## Topik wawancara Laravel lainnya - [Dasar-Dasar PHP](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/php-basics.md): 25 pertanyaan, Junior - [Dasar OOP PHP](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/php-oop-essentials.md): 20 pertanyaan, Junior - [Composer & Autoloading](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/composer-autoloading.md): 18 pertanyaan, Junior - [Dasar-Dasar Laravel](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/laravel-fundamentals.md): 20 pertanyaan, Junior - [Routing Laravel](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/laravel-routing.md): 20 pertanyaan, Junior - [Blade Templates](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/blade-templates.md): 18 pertanyaan, Junior - [Request & Response](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/request-response.md): 20 pertanyaan, Junior - [Dasar-Dasar Eloquent ORM](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/eloquent-orm-basics.md): 22 pertanyaan, Junior - [Eloquent Relationships](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/eloquent-relationships.md): 25 pertanyaan, Mid-Level - [Migrations & Schema Builder](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/database-migrations.md): 20 pertanyaan, Mid-Level - [Validasi & Formulir](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/validation-forms.md): 22 pertanyaan, Mid-Level - [Autentikasi](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/authentication.md): 20 pertanyaan, Mid-Level - [Otorisasi & Policies](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/authorization-policies.md): 18 pertanyaan, Mid-Level - [API Resources & Authentication](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/api-resources-authentication.md): 26 pertanyaan, Mid-Level - [Middleware](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/middleware.md): 18 pertanyaan, Mid-Level - [Service Container & DI](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/service-container-di.md): 20 pertanyaan, Mid-Level - [Queues & Jobs](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/queues-jobs.md): 22 pertanyaan, Mid-Level - [Events & Listeners](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/events-listeners.md): 18 pertanyaan, Mid-Level - [Notifikasi & Mail](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/notifications-mail.md): 20 pertanyaan, Mid-Level - [File Storage](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/file-storage.md): 18 pertanyaan, Mid-Level - [Testing & PHPUnit](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/testing-phpunit.md): 24 pertanyaan, Mid-Level - [Caching](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/caching.md): 18 pertanyaan, Mid-Level - [Livewire & Inertia](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/livewire-inertia.md): 20 pertanyaan, Mid-Level - [Eloquent Advanced](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/eloquent-advanced.md): 24 pertanyaan, Senior - [Repository Pattern](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/repository-pattern.md): 20 pertanyaan, Senior - [Laravel Packages](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/laravel-packages.md): 20 pertanyaan, Senior - [Security Best Practices](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/security-best-practices.md): 22 pertanyaan, Senior - [Laravel Octane](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/laravel-octane.md): 18 pertanyaan, Senior - [Laravel Distributed Systems](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/laravel-distributed-systems.md): 22 pertanyaan, Senior - [Observability & Monitoring](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/observability-monitoring.md): 20 pertanyaan, Senior - [Deployment & DevOps](https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/deployment-devops.md): 20 pertanyaan, Senior --- Source: SharpSkill (https://sharpskill.dev), tech interview preparation for your real stack. HTML version of this page: https://sharpskill.dev/id/technologies/laravel/pertanyaan-wawancara/performance-optimization