Commit Graph

2 Commits

Author SHA1 Message Date
Wei Liu
c9483fb080 tracer: avoid unnecessary allocations
Allocation is only required when creating a new entry in the hashmap.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-11-17 12:52:27 +00:00
Rob Bradford
b35e6f3018 tracing: Tracing infrastructure
Add a new feature "tracing" that enables tracing functionality via the
"tracer" crate (sadly features and crates cannot share the same name.)

Setup: tracer::start()

The main functionality is a tracer::trace_scope()! macro that will add
trace points for the duration of the scope. Tracing events are per
thread.

Finish: tracer::end() this will write the trace file (pretty printed
JSON) to a file in the current directory.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-09-22 18:09:31 +01:00