Commit 2e2dfb7e authored by Rob Latham's avatar Rob Latham
Browse files

add optional logging

parent 85807d78
......@@ -62,3 +62,9 @@ system with a level of concurrency determined by the number of execution
streams in the abt-io pool. This is similar to aio functionality but with a
simpler interface and less serialization.
## Tracing
If you set the environment variable `ABT_IO_TRACE`, abt-io will log to stderr
the i/o operations it is doing in Darshan "DXT format":
# Module Rank Wt/Rd Segment Offset Length Start(s) End(s)
X_ABTIO 0 write 0 0 262144 0.0029 0.0032
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