Kepiye carane tune situs WordPress sing traffic dhuwur kanggo kinerja?

Question

Accepted Answer

**Optimalake lapis demi lapis — saben lapis nyerep beban sadurunge tekan lapis sabanjare.** Tujuane yaiku nyegani paling akeh request saka cache lan gawé PHP lan database isih cilik.

## 1. PHP-FPM lan OPcache

Gawe `php-fpm` pool ukurane RAM, lan nyalakké `OPcache` supaya PHP dikompilasi setunggal kali, dudu ing saben request:

```ini
; php-fpm pool: cap workers so you don't exhaust RAM
; pm.max_children = (available RAM for PHP) / (avg process size, ~50MB)
pm = dynamic
pm.max_children = 40          ; hard ceiling on concurrent PHP workers
pm.start_servers = 10
pm.min_spare_servers = 8
pm.max_spare_servers = 16
pm.max_requests = 500         ; recycle workers to avoid memory leaks

; OPcache: cache compiled bytecode in memory
opcache.enable = 1
opcache.memory_consumption = 256
opcache.max_accelerated_files = 20000
opcache.validate_timestamps = 0   ; skip file-stat checks in prod (flush on deploy)
```

Manawa `max_children` dhuwur banget sampeyan tukar lan crash; cilik banget lan request antri (502 nèng beban).

## 2. Object cache lan page cache + CDN

- **Object cache** (Redis/Memcached) — cache asil query DB lan WordPress object cache supaya query bola kudu MySQL.
- **Full-page cache** — ngaturake HTML sing cached kanggo pengunjung anonymous supaya PHP ora mlayu (Varnish, Nginx FastCGI cache, utawa plugin).
- **CDN** — nyepeké static assets (gambar, CSS, JS) lan cache kaca ing pinggir, katon marang user.

Lapis-lapisane iki tegese hit homepage bisa bali saka pinggir utawa page cache tanpa gawe PHP utawa DB.

## 3. Database lan plugins

Nyalakké **slow query log** kanggo nemokake penyerang, tambahké **indexes** kanggo custom queries, lan audit **autoloaded options** (`wp_options` karo `autoload = yes` ngemuat ing *saben* request — autoload data gemuk abot kabeh). Pungkasan, **kecilké plugin bloat**: saben plugin nambahké queries lan pekerjaan PHP, mula busaken sing ora digunakake.

## Kenapa kuwi penting

WordPress request abot PHP lan DB kanthi baku, mula ambruk nèng traffic tanpa tune. Layered caching (OPcache → object cache → page cache → CDN) plus PHP-FPM ukuran bener lan database lembut tegese server siji-siji bisa gawé lalu lintas jutaan kali - lan tetep up nalika spike.