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Performance vs scalability
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@ -421,19 +421,21 @@ Perlu diingat bahwa **segala sesuatunya adalah hasil kompromi**.
Selanjutnya kita akan mempelajari lebih dalam topik-topik tertentu seperti DNS, CDNs, dan penyeimbang beban.
## Performance vs scalability
## Kinerja vs skalabilitas
A service is **scalable** if it results in increased **performance** in a manner proportional to resources added. Generally, increasing performance means serving more units of work, but it can also be to handle larger units of work, such as when datasets grow.<sup><a href=http://www.allthingsdistributed.com/2006/03/a_word_on_scalability.html>1</a></sup>
Sebuah layanan disebut terskala jika layanan tersebut menghasilkan peningkatan kinerja secara proposional terhadap pertambahan sumber daya.
Secara umum, peningkatan kinerja berarti pertambahan unit kerja yang bisa diselesaikan.
kemungkinan lainnya adalah kemampuan menangani unit kerja ukurannya yang lebih besar, contohnya ketika himpunan data berkembang.<sup><a href=http://www.allthingsdistributed.com/2006/03/a_word_on_scalability.html>1</a></sup>
Another way to look at performance vs scalability:
Cara lain melihat kinerja vs skalabilitas:
* If you have a **performance** problem, your system is slow for a single user.
* If you have a **scalability** problem, your system is fast for a single user but slow under heavy load.
* Jika layanan terkena masalah kinerja, sistem terasa lambat oleh pengguna tunggal.
* Jika layanan terkena masalah skalabilitas, sistem terasa cepat oleh pengguna tunggal tetapi menjadi lambat ketika di bawah tekanan.
### Source(s) and further reading
### Sumber dan bacaan lanjutan
* [A word on scalability](http://www.allthingsdistributed.com/2006/03/a_word_on_scalability.html)
* [Scalability, availability, stability, patterns](http://www.slideshare.net/jboner/scalability-availability-stability-patterns/)
* [Sepatah kata untuk skalabilitas](http://www.allthingsdistributed.com/2006/03/a_word_on_scalability.html)
* [Skalabilitas, ketersediaan, stabilitas, pola](http://www.slideshare.net/jboner/scalability-availability-stability-patterns/)
## Latency vs throughput