I’m running a CentOS server (specs below) with 32 GB memory. My problem is 18.49 GB of the 32GB is used by cache. That seems to be a lot. Is that a good thing or cache is using too much? I’m running a live cryptocurrency prices website. I cache a lot of stuff because I’m using API to pull cryptocurrency prices.
Is cache keeping the site from running out of memory or it’s using too much and I should I reduce the number of pages cache? If I don’t cache so much, will my the site slows down?
OS: CentOS Linux 7.7.1908 (Core)
CPU: Intel® Xeon® CPU E3-1225 v3 @ 3.20GHz (4 core(s))
System Uptime: 3 day(s) 09:58
Total memory: 31.17 GB
Used: 20.04 GB
Cache: 18.49 GB