CPU hogging

[anduck]

Brief Description:

Operating System (OS and version): Ubuntu 14.04.4 LTS OpenBazaar version: Cloned from the repo Hardware: VPS with 2-core Intel Atom C2750 (2.40GHz)

Reproducible (Always / Almost Always / Sometimes / Rarely / Couldn't Reproduce): Always

Steps to reproduce:

1. Run ob
2. Do ~anything. For example, I try to "follow" Bazaarbay and CPU usage of the process goes to 100% for a long time (around 10 seconds maybe) and the "follow" is canceled.

Observed Behavior: CPU usage goes to 100%. (Blocks all the incoming requests so the "follow" timeouts?)

Expected Behavior: CPU usage doesn't go to 100%.

Additional info (links, images, etc go here): This shouldn't happen as the server is (I think?) more powerful than for example Raspberry Pi's. Some people AFAIK runs OB on RPi.

[schwab]

I'm also getting frequent periods where 1 (of 4 ) cores is maxed out at 100% for long periods of time as well. Usually it's after navigating through the app. It's always the openbazzard.py process. Is there anyway to determine why it's using a lot of cpu and how to correct? During that time, the client is unresponsive.

[marcdraco]

I've seen similar behavior. The problem seems to lie with Python which isn't the fastest language around. Always seemed an odd choice to me for this sort of thing. There is a compiled Python now but from what little I know that isn't 100% compatible.

The way things are looking, it looks like the whole daemon needs writing in C/C++/Rust etc. as this is just too sluggish. Even on my 16 core Xeon it's fairly sluggish.