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2023-06-12Use `int32_t` type for most transaction size/weight valuesHennadii Stepanov
This change gets rid of a few casts and makes the following commit diff smaller.
2023-03-20Add mempool tracepointsvirtu
Tracepoints for added, removed, replaced, and rejected transactions. The removal reason is passed as string instead of a numeric value, since the benefits of not having to maintain a redundant enum-string mapping seem to outweigh the small cost of string generation. The reject reason is passed as string as well, although here the string does not have to be generated but is readily available. So far, tracepoint PRs typically included two demo scripts: a naive bpftrace script to show raw tracepoint data and a bcc script for a more refined view. However, as some of the ongoing changes to bpftrace introduce a certain degree of unreliability (running some of the existing bpftrace scripts was not possible with standard kernels and bpftrace packages on latest stable Ubuntu, Debian, and NixOS), this PR includes only a single bcc script that fuses the functionality of former bpftrace and bcc scripts.
2022-12-24scripted-diff: Bump copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: - 2021: f47dda2c58b5d8d623e0e7ff4e74bc352dfa83d7 - 2020: fa0074e2d82928016a43ca408717154a1c70a4db - 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
2022-02-20Merge bitcoin/bitcoin#23907: tracing: utxocache tracepoints follow up for #22902fanquake
799968e8b38833dc7fd7b6d488a66a14580ef674 tracing: misc follow-ups to 22902 (0xb10c) 36a65847033540cf2203252c7baf42bc5ec97579 tracing: correctly scope utxocache:flush tracepoint (Arnab Sen) Pull request description: This PR is a follow-up to the [#22902](https://github.com/bitcoin/bitcoin/pull/22902). Previously, the tracepoint `utxocache:flush` was called, even when it was not flushing. So, the tracepoint is now scoped to write only when coins cache to disk. ACKs for top commit: 0xB10C: ACK 799968e8b38833dc7fd7b6d488a66a14580ef674 Tree-SHA512: ebb096cbf991c551c81e4339821f10d9768c14cf3d8cb14d0ad851acff5980962228a1c746914c6aba3bdb27e8be53b33349c41efe8bab5542f639916e437b5f
2022-02-18tracing: misc follow-ups to 229020xb10c
- mention 'Lost X events' workaround - clarify flush tracepoint docs - fix typo in tracepoint context - clarify flush for prune The documentation and examples for the `fFlushForPrune` argument of the utxocache flush tracepoint weren't clear without looking at the code. See these comments: https://github.com/bitcoin/bitcoin/pull/22902#issuecomment-987094612 - doc: note that there can be temporary UTXO caches Bitcoin Core uses temporary clones of it's _main_ UTXO cache in some places. The utxocache:add and :spent tracepoints are triggered when temporary caches are changed too. This is documented.
2021-12-30scripted-diff: Insert missed copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py insert contrib/guix/libexec/build.sh ./contrib/devtools/copyright_header.py insert contrib/guix/libexec/codesign.sh ./contrib/devtools/copyright_header.py insert contrib/tracing/log_raw_p2p_msgs.py ./contrib/devtools/copyright_header.py insert contrib/tracing/log_utxocache_flush.py ./contrib/devtools/copyright_header.py insert contrib/tracing/p2p_monitor.py ./contrib/devtools/copyright_header.py insert test/lint/lint-files.sh -END VERIFY SCRIPT-
2021-12-30tracing: correctly scope utxocache:flush tracepointArnab Sen
Previously, the `utxocache:flush` tracepoint was in the wrong scope and reached every time `CChainState::FlushStateToDisk` was called, even when there was no flushing of the cache. The tracepoint is now properly scoped and will be reached during a full flush. Inside the scope, the `fDoFullFlush` value will always be `true`, so it doesn't need to be logged separately. Hence, it's dropped from the tracepoint arguments.
2021-11-28[tracing] tracepoints to utxocache add, spent and uncacheArnab Sen
Signed-off-by: Arnab Sen <arnabsen1729@gmail.com>
2021-11-28[tracing] tracepoint for utxocache flushesArnab Sen
Signed-off-by: Arnab Sen <arnabsen1729@gmail.com>
2021-10-18tracing: drop block_connected hash.toString() arg0xb10c
The tracepoint `validation:block_connected` was introduced in #22006. The first argument was the hash of the connected block as a pointer to a C-like String. The last argument passed the hash of the connected block as a pointer to 32 bytes. The hash was only passed as string to allow `bpftrace` scripts to print the hash. It was (incorrectly) assumed that `bpftrace` cannot hex-format and print the block hash given only the hash as bytes. The block hash can be printed in `bpftrace` by calling `printf("%02x")` for each byte of the hash in an `unroll () {...}`. By starting from the last byte of the hash, it can be printed in big-endian (the block-explorer format). ```C $p = $hash + 31; unroll(32) { $b = *(uint8*)$p; printf("%02x", $b); $p -= 1; } ``` See also: https://github.com/bitcoin/bitcoin/pull/22902#discussion_r705176691 This is a breaking change to the block_connected tracepoint API, however this tracepoint has not yet been included in a release.
2021-07-27tracing: Tracepoint for connected blocks0xb10c
Can, for example, be used to benchmark block connections.
2021-07-27tracing: Tracepoints for in- and outbound P2P msgs0xb10c
Can be used to monitor in- and outbound node traffic. Based on ealier work by jb55. Co-authored-by: William Casarin <jb55@jb55.com>
2021-07-27doc: Add initial USDT documentation0xb10c
Both added files are extended in the following commits. doc/usdt.md is based on earlier work by laanwj. Co-authored-by: W. J. van der Laan <laanwj@protonmail.com>