O Discourse escala bem com núcleos?

Suporte Instalação
1

Pessoal, estou rodando 3 sites Discourse (um deles é de desenvolvimento!) em VPSs com 2 núcleos e 2 GB de RAM sem nenhum problema e com desempenho excelente… mas eu me perguntei:

  • Um servidor de 1 núcleo prejudica o desempenho em comparação?
  • Quais processos utilizam os núcleos extras quando disponíveis?
  • Núcleos extras ajudam a atender mais solicitações web ao mesmo tempo?

Para sites menores e de desenvolvimento, faz sentido escalar para baixo para 1 núcleo?

Alguém já grafou o uso de CPU em um servidor ocupado?

2

If you’re using multi-site install, my understanding is that the number of sites barely matters, what counts is the number of simultaneously active users on all sites.

3

Yeah, so performance does scale with cores?

You can serve ~twice as many users at once with double the cores? (assuming I/O can handle it)

No point in having low load dev server on a 2 core server?

(personally not running multi-site … they are all on virtually ‘discrete’ instances).

4

If you are simply asking if you can downgrade your dev instance, the answer is yes. You likely will never have enough active traffic to warrant the same setup you have for your active production sites.

For comparison purposes, my sandbox/dev site is a 1 core 1 GB RAM box on a 25 GB SSD and when I’m using it, it doesn’t feel sluggish to me at all. Rebuilds can take 15-30 minutes (since it is a full-fledge docker setup – not sure if you used the dev setup or official docker setup, but I imagine it will work with those specs for either).

5

This one might be of some help