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1ae087bfcf
- make `logging.GetLogger(ctx, Subsys)` the authoritative `logger.Logger` factory function
- the context carries a linked list of injected fields which
`logging.GetLogger` adds to the logger it returns
- introduce the concept of tasks and spans, also tracked as linked list within ctx
- [ ] TODO automatic logging of span begins and ends, with a unique
ID stack that makes it easy to follow a series of log entries in
concurrent code
- ability to produce a chrome://tracing-compatible trace file,
either via an env variable or a `zrepl pprof` subcommand
- this is not a CPU profile, we already have go pprof for that
- but it is very useful to visually inspect where the
replication / snapshotter / pruner spends its time
( fixes #307 )
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| .. | ||
| bytecounter | ||
| chainedio | ||
| chainlock | ||
| chunking | ||
| circlog | ||
| connlogger | ||
| devnoop | ||
| envconst | ||
| errorarray | ||
| iocommand | ||
| limitio | ||
| optionaldeadline | ||
| semaphore | ||
| socketpair | ||
| tcpsock | ||