How can I find performance bottlenecks?

Tiny Tiny RSS Support
1

My tt-rss became ridiculously slow and I think it’s getting slower day by day. Sadly, I have no idea if I have something wrong with my settings or maybe the problem is the performance of my hosting. Sometimes it takes a few minutes to simply load tt-rss after logging in, sometimes when I’m already logged it it takes a few minutes to load fresh articles or simply… anything. I have no idea how can I check why it’s so slow, I don’t see any useful info anywhere in logs, actually, log is empty. Can you tell me what can I do to find out what’s the issue, what are bottlenecks?

Now I’m trying for 20 minutes to load tt-rss to provide info about the version I’m using. :expressionless:

Tiny Tiny RSS v18.12 (a482cb2), FreeBSD, PHP 7.1.21, PostgreSQL

2

First thing is to ssh into the server and get some basic stats on memory, storage (available space and IO), network and CPU usage. If you’re on a VPS you could have a bad neighbor utilizing some or all of the resources, that won’t show up in your stats.

Do you have anything else on this machine? If so, how does it perform?

3

Just fyi, using top you can see what CPU % was stolen by neighbors (or throttling, for things like AWS T2.) Understanding CPU Steal Time - when should you be worried? | Scout APM Blog has a decent intro.