0xB10C boosted

[bitcoin] Merged PR from 0xB10C: tracing: first tracepoints and documentation on User-Space, Statically Defined Tracing (USDT) github.com/bitcoin/bitcoin/pul

If future tracepoints for e.g. peer dis / connections, addrman, UTXO set changes, etc get merged, this might be an alternative to
's Statoshi.info which requires a rebase on each Bitcoin Core release. I'd also argue that the bitcoind-observer setup is easier.

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And block connection timings during IBD and data about validated blocks/second, transactions/second, inputs/second, and sigops/second.


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While limited by the three trancepoints added in #22006, it is already showing real time P2P message count and traffic per message type.


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I build an experimental Bitcoin Core Prometheus metrics exporter based on the eBPF and USDT tracepoints I add in PR #22006 (github.com/bitcoin/bitcoin/pul).


Grafana demo available on bitcoind.observer

@michaelfolkson you might find this interesting

Couldn't really talk about it on Tuesday as everything was still in limbo 😬

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0xB10C boosted

RT @0xb10c
We donated 4 of the 6 existing mainnet Pay-to-Taproot outputs (currently anyone-can-spend) to @bitcoinbrink.

Thank you @f2pool_official and @satofishi for including the non-standard transaction in a block!🐟


We donated 4 of the 6 existing mainnet Pay-to-Taproot outputs (currently anyone-can-spend) to brink.dev.

Thank you f2pool.com and @satofishi for including the non-standard transaction in a block!


0xB10C boosted

Discussing the roll out of Taproot at next week's online Socratic Seminar. Would be great to have you there @0xb10c :) meetup.com/BitDevsLDN/events/2

@harding @jb55

YIL about git add -p
TIL about git crecord

Thank you both! ❤️

I was surprised to learn that there are only 20 key-path and 5 script-path spends of P2TR outputs on SigNet yet. Had assumed more people played around with taproot on SigNet.

Maybe it's to early for e.g. wallets to be testing this or they test on regtest.

@michaelfolkson thank you for asking (and answering or archiving answers to) all these questions on bitcoin.stackexchange.com

super helpful

@smartbrain it shows the two addrman (Peer Address Manager) tables. The _new_ table for addresses we received from peers holds 1024 buckets and the _tried_ table has 256 buckets with addresses we already connected to. Each bucket holds 64 addresses.

🟥 IPv4
🟩 IPv6
🟦 Tor v3
⬛ empty

0xB10C boosted

still blown away by @0xb10c's p2p ebpf tool for bitcoin-core. detailed node introspection with only a few traces added to the codebase 🤯


@smartbrain nope, it's something specifically from Bitcoin Core

Quiz: Which Bitcoin Core data-structure does this visualization show?

0xB10C boosted

Wednesday's Bitcoin Core PR Review Club will dive into User-Space, Statically Defined Tracing (USDT).

Our host @0xb10c opens the door to peeking into runtime internals of Bitcoin Core at statically defined tracepoints.

Come discuss and learn; notes and questions are up!


@waxwing on Libera or freenode? In which channel? Can't seem to find it

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