Faster traceEvent and traceMarker, and binary object logging for eventlog.

ghc-trace-events provides faster traceEvent and traceMarker as well as arbitrary binary object logging for the eventlog framework. Unlike the eventlog tracing functions in base, all the tracing functions in this library don't evaluate the input if user event logging (the -lu flag) is disabled, which can give a significant boost in performance. Take a look at the benchmark suite for the details.

This library provies the following modules:

Debug.Trace.String

Drop-in replacement for the event tracing functions in Debug.Trace.

Debug.Trace.ByteString

UTF-8 encoded ByteString variant of the event tracing functions in Debug.Trace. It's faster than the String variant.

Debug.Trace.Text

Text variant of the event tracing functions in Debug.Trace. It's faster than the String variant.

Debug.Trace.Binary

Arbitary binary object logging available for GHC 8.8 or later. Unlike the other tracing functions Debug.Trace.Binary.traceBinaryEvent takes an arbitrary ByteString object as opposed to a UTF-8 encoded string.

ghc-trace-events.