Kubo 0.20.0-dev is eating all my CPU.

[jvoisin]

Checklist

• This is a bug report, not a question. Ask questions on discuss.ipfs.io.
• I have searched on the issue tracker for my bug.
• I am running the latest kubo version or have an issue updating.

Installation method

built from source

Version

Kubo version: 0.20.0-dev-40d7f2fec
Repo version: 13
System version: amd64/linux
Golang version: go1.20.2

Config

{
  "API": {
    "HTTPHeaders": {
      "Access-Control-Allow-Methods": [
        "PUT",
        "POST"
      ],
      "Access-Control-Allow-Origin": [
        "http://localhost:3000",
        "http://127.0.0.1:5001",
        "https://webui.ipfs.io"
      ]
    }
  },
  "Addresses": {
    "API": "/ip4/127.0.0.1/tcp/5001",
    "Announce": [],
    "AppendAnnounce": [],
    "Gateway": "/ip4/127.0.0.1/tcp/8080",
    "NoAnnounce": [
      "/ip4/10.0.0.0/ipcidr/8",
      "/ip4/100.64.0.0/ipcidr/10",
      "/ip4/169.254.0.0/ipcidr/16",
      "/ip4/172.16.0.0/ipcidr/12",
      "/ip4/192.0.0.0/ipcidr/24",
      "/ip4/192.0.2.0/ipcidr/24",
      "/ip4/192.168.0.0/ipcidr/16",
      "/ip4/198.18.0.0/ipcidr/15",
      "/ip4/198.51.100.0/ipcidr/24",
      "/ip4/203.0.113.0/ipcidr/24",
      "/ip4/240.0.0.0/ipcidr/4",
      "/ip6/100::/ipcidr/64",
      "/ip6/2001:2::/ipcidr/48",
      "/ip6/2001:db8::/ipcidr/32",
      "/ip6/fc00::/ipcidr/7",
      "/ip6/fe80::/ipcidr/10"
    ],
    "Swarm": [
      "/ip4/0.0.0.0/tcp/4001",
      "/ip6/::/tcp/4001",
      "/ip4/0.0.0.0/udp/4001/quic",
      "/ip4/0.0.0.0/udp/4001/quic-v1",
      "/ip4/0.0.0.0/udp/4001/quic-v1/webtransport",
      "/ip6/::/udp/4001/quic",
      "/ip6/::/udp/4001/quic-v1",
      "/ip6/::/udp/4001/quic-v1/webtransport"
    ]
  },
  "AutoNAT": {},
  "Bootstrap": [
    "/dnsaddr/bootstrap.libp2p.io/p2p/QmcZf59bWwK5XFi76CZX8cbJ4BhTzzA3gU1ZjYZcYW3dwt",
    "/ip4/104.131.131.82/tcp/4001/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ",
    "/ip4/104.131.131.82/udp/4001/quic/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ",
    "/dnsaddr/bootstrap.libp2p.io/p2p/QmNnooDu7bfjPFoTZYxMNLWUQJyrVwtbZg5gBMjTezGAJN",
    "/dnsaddr/bootstrap.libp2p.io/p2p/QmQCU2EcMqAqQPR2i9bChDtGNJchTbq5TbXJJ16u19uLTa",
    "/dnsaddr/bootstrap.libp2p.io/p2p/QmbLHAnMoJPWSCR5Zhtx6BHJX9KiKNN6tpvbUcqanj75Nb"
  ],
  "DNS": {
    "Resolvers": {}
  },
  "Datastore": {
    "BloomFilterSize": 0,
    "GCPeriod": "1h",
    "HashOnRead": false,
    "Spec": {
      "mounts": [
        {
          "child": {
            "path": "blocks",
            "shardFunc": "/repo/flatfs/shard/v1/next-to-last/2",
            "sync": true,
            "type": "flatfs"
          },
          "mountpoint": "/blocks",
          "prefix": "flatfs.datastore",
          "type": "measure"
        },
        {
          "child": {
            "compression": "none",
            "path": "datastore",
            "type": "levelds"
          },
          "mountpoint": "/",
          "prefix": "leveldb.datastore",
          "type": "measure"
        }
      ],
      "type": "mount"
    },
    "StorageGCWatermark": 90,
    "StorageMax": "10GB"
  },
  "Discovery": {
    "MDNS": {
      "Enabled": false
    }
  },
  "Experimental": {
    "AcceleratedDHTClient": false,
    "FilestoreEnabled": true,
    "GraphsyncEnabled": false,
    "Libp2pStreamMounting": false,
    "P2pHttpProxy": false,
    "StrategicProviding": false,
    "UrlstoreEnabled": false
  },
  "Gateway": {
    "APICommands": [],
    "HTTPHeaders": {
      "Access-Control-Allow-Headers": [
        "X-Requested-With",
        "Range",
        "User-Agent"
      ],
      "Access-Control-Allow-Methods": [
        "GET"
      ],
      "Access-Control-Allow-Origin": [
        "*"
      ]
    },
    "NoDNSLink": false,
    "NoFetch": false,
    "PathPrefixes": [],
    "PublicGateways": null,
    "RootRedirect": ""
  },
  "Identity": {
    "PeerID": "12D3KooWLpm2byv3yD5gys2VHou3bBrDVuwYFYpbSEuisgxpYoHG"
  },
  "Internal": {},
  "Ipns": {
    "RecordLifetime": "",
    "RepublishPeriod": "",
    "ResolveCacheSize": 128
  },
  "Migration": {
    "DownloadSources": [],
    "Keep": ""
  },
  "Mounts": {
    "FuseAllowOther": false,
    "IPFS": "/ipfs",
    "IPNS": "/ipns"
  },
  "Peering": {
    "Peers": [
      {
        "Addrs": [
          "/dnsaddr/node-1.ingress.cloudflare-ipfs.com"
        ],
        "ID": "QmcFf2FH3CEgTNHeMRGhN7HNHU1EXAxoEk6EFuSyXCsvRE"
      }
    ]
  },
  "Pinning": {
    "RemoteServices": {}
  },
  "Plugins": {
    "Plugins": null
  },
  "Provider": {
    "Strategy": ""
  },
  "Pubsub": {
    "DisableSigning": false,
    "Router": ""
  },
  "Reprovider": {},
  "Routing": {
    "Methods": null,
    "Routers": null
  },
  "Swarm": {
    "AddrFilters": [
      "/ip4/10.0.0.0/ipcidr/8",
      "/ip4/100.64.0.0/ipcidr/10",
      "/ip4/169.254.0.0/ipcidr/16",
      "/ip4/172.16.0.0/ipcidr/12",
      "/ip4/192.0.0.0/ipcidr/24",
      "/ip4/192.0.2.0/ipcidr/24",
      "/ip4/192.168.0.0/ipcidr/16",
      "/ip4/198.18.0.0/ipcidr/15",
      "/ip4/198.51.100.0/ipcidr/24",
      "/ip4/203.0.113.0/ipcidr/24",
      "/ip4/240.0.0.0/ipcidr/4",
      "/ip6/100::/ipcidr/64",
      "/ip6/2001:2::/ipcidr/48",
      "/ip6/2001:db8::/ipcidr/32",
      "/ip6/fc00::/ipcidr/7",
      "/ip6/fe80::/ipcidr/10"
    ],
    "ConnMgr": {},
    "DisableBandwidthMetrics": false,
    "DisableNatPortMap": true,
    "RelayClient": {},
    "RelayService": {},
    "ResourceMgr": {},
    "Transports": {
      "Multiplexers": {},
      "Network": {},
      "Security": {}
    }
  }
}

Description

I'm running the latest git kubo and it's eating a ton of CPU (profile), I don't think this is working as intended, since my node is apparently not doing much if anything at all

~ $ /home/ipfs/kubo/cmd/ipfs/ipfs swarm peers | wc -l
25
~  $ /home/ipfs/kubo/cmd/ipfs/ipfs stats bw
Bandwidth
TotalIn: 25 MB
TotalOut: 8.4 MB
RateIn: 354 B/s
RateOut: 5.8 kB/s
~ $ 

[Jorropo]

@jvoisin something is putting a huge load on the scheduler that indeed does look like a bug. On the actual usage even tho it's sad 188% cpu usage aint that much. We certainly want to improve this but not wildly out of the ordinary.

How many cores do you have ?

[jvoisin]

It's running on a AMD Ryzen 7 5700G with 16 cores and 4G of RAM.

For reference, Kubo is eating twice as much CPU than a fishtest runner, and 4 times a 10MiB/s tor node .

[celeduc]

v0.18.1 used to take around 5% CPU on average, across 4 cores. v0.19.0 takes 48-51% on average. It's not doing much either, on either of my nodes ~20-50kB/s up/down.

Ubuntu 22.04.2 LTS, Intel® Core™ i7-7500U CPU @ 2.70GHz × 4, 16GB
and
Ubuntu 22.04.2 LTS, Intel® Core™ i5-6600 CPU @ 3.30GHz × 4, 20GB

[Jorropo]

Btw we know of a bug in the latest libp2p release where it waste lots of CPU.

I have no idea what versions you are talking about tho because v0.20.0 does not exists and v0.19.1 will be released this week (with this fix), the current latest release is v0.19.0.
I would love to know where you got your time travel machine. :D

I would like you to test once v0.19.1 is released please.

[celeduc]

I would love to know where you got your time travel machine. :D

Classic developer off-by-one error :)

[celeduc]

Tested master @ 3ab1086 and this bug is gone, CPU usage back to normal. I'd consider it fixed for v0.19.1.

[jvoisin]

I can confirm that the issue is gone :)

[Jorropo]

We discovered an other busyloop which is only using resources while downloading data using Blockservice().GetBlocks this gonna be fixed in v0.19.1 too. This affects CPU usage when using ipfs get for example.
ipfs/boxo#232

[Jorropo]

The profile you sent 404 for me, so I can't check if it is the exact one we fixed.
Many peoples reporting it's fixed, two of thoses have been fixed in v0.19.1 🎉

If this is still an issue please reopen this issue.