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Tutorials › CodeIgniter 4 › CI4 Performance

CI4 Performance

5 min read
Speed up CI4 with OPcache, select(), page caching, database indexes, and insertBatch().

CI4 Performance Tips

  • Enable OPcache — biggest single win
  • Use database indexes on all WHERE/JOIN/ORDER columns
  • Use $model->select() — fetch only needed columns
  • Cache expensive queries with $cache->save()
  • Use page caching for static-ish pages
  • Use insertBatch() for bulk inserts — much faster than loop
  • Use lazy/chunked queries for large datasets
  • Enable PHP compression: zlib.output_compression=On
  • Use a CDN for static assets
  • Profile with CI_DEBUG=true toolbar