libp2p
Rust peer exhausting resources
Problem
Every since https://github.com/libp2p/universal-connectivity/pull/114 was merged and the Rust peer is now part of the IPFS Kademlia DHT, it's resource consumption has spiked significantly. It's running on a pretty beefy machine (32GB RAM), yet manages to eat up the CPU cycles from the moment it starts:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1687 root 20 0 1384924 1.0g 33812 S 650.3 3.3 11:30.25 rust-libp2p-web
1718 root 20 0 2651788 131636 22300 S 2.7 0.4 0:11.17 go-peer
Especially when compared to the go-peer (which also joins the IPFS DHT as a DHT Server)
Potential solutions
It's probably sensible to figure out why the Rust peer is consuming so much resources in order to come up with solutions. We know that this problem started every since it joined the IPFS DHT and connected to the bootstrap nodes.
It may be sensible to instrument the code to figure out why this is happening, in addition to adding some connection limits and having a look at https://github.com/libp2p/rust-libp2p/tree/master/misc/server as a comparison rust-libp2p DHT Server.
