A kind reminder to please provide your feedback on the #XDP implementation we did for NSD, our authoritative #DNS server.
With zero-copy disabled, weI saw a 1.7x improvement in handled queries per second compared to UDP through the network stack. We expect the improvement to be higher with a driver that fully supports AF_XDP zero-copy mode.
We're curious to hear about your experiences!
https://blog.nlnetlabs.nl/experimental-support-for-af_xdp-sockets-in-nsd/
NLnet Labs
npub1qy…9rffr
2025-06-12 10:57:52 UTC
Author Public Key
npub1qyqtcu2yp540xnc6l6znm7npnlwm6pn47fpjnwtw66plhwrkcddq89rffrPublished at
2025-06-12 10:57:52 UTCEvent JSON
{
"id": "b601348ef704f4b056750f20895092efaf5f5febbeb0b6c238649772e6727e17",
"pubkey": "0100bc71440d2af34f1afe853dfa619fddbd0675f24329b96ed683fbb876c35a",
"created_at": 1749725872,
"kind": 1,
"tags": [
[
"t",
"xdp"
],
[
"t",
"dns"
],
[
"proxy",
"https://fosstodon.org/users/nlnetlabs/statuses/114670034772554139",
"activitypub"
],
[
"client",
"Mostr",
"31990:6be38f8c63df7dbf84db7ec4a6e6fbbd8d19dca3b980efad18585c46f04b26f9:mostr",
"wss://relay.mostr.pub"
]
],
"content": "A kind reminder to please provide your feedback on the #XDP implementation we did for NSD, our authoritative #DNS server. \n\nWith zero-copy disabled, weI saw a 1.7x improvement in handled queries per second compared to UDP through the network stack. We expect the improvement to be higher with a driver that fully supports AF_XDP zero-copy mode.\n\nWe're curious to hear about your experiences!\nhttps://blog.nlnetlabs.nl/experimental-support-for-af_xdp-sockets-in-nsd/",
"sig": "596e411a4b9170710441b580eca6713c6237706a0f86dbef69807486e5288014b8aa95e4c3fd0b032d27105efb99f8b54e6a5ea7f1edac6ddea73cda21fe2249"
}