7 Commits (56c8658700fc3e26977b0207384b5f6cba2c9f65)

Author	SHA1	Message	Date
0xb10c	799968e8b3	tracing: misc follow-ups to 22902 ... - 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.	3 years ago
Arnab Sen	36a6584703	tracing: correctly scope utxocache:flush tracepoint ... 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.	3 years ago
Arnab Sen	2bc51c5c32	[tracing] tracepoints to utxocache add, spent and uncache ... Signed-off-by: Arnab Sen <arnabsen1729@gmail.com>	3 years ago
0xb10c	53c9fa9e62	tracing: drop block_connected hash.toString() arg ... 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.	3 years ago
0xb10c	8f37f5c2a5	tracing: Tracepoint for connected blocks ... Can, for example, be used to benchmark block connections.	3 years ago
0xb10c	4224dec22b	tracing: Tracepoints for in- and outbound P2P msgs ... Can be used to monitor in- and outbound node traffic. Based on ealier work by jb55. Co-authored-by: William Casarin <jb55@jb55.com>	3 years ago
0xb10c	84ace9aef1	doc: Add initial USDT documentation ... 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>	3 years ago