Moduleghc-internal-10.0.0Haskell2010

GHC.Internal.Profiling

Contents

Synopsis

Cost Centre Profiling

valuestartProfTimer :: IO ()

Start attributing ticks to cost centres. This is called by the RTS on startup but can be disabled using the rts flag --no-automatic-time-samples.

valuestopProfTimer :: IO ()

Stop attributing ticks to cost centres. Allocations will still be attributed.

valuestartHeapProfTimer :: IO ()

Start heap profiling. This is called normally by the RTS on start-up, but can be disabled using the rts flag --no-automatic-heap-samples.

Note: This won't do anything unless you also specify a profiling mode on the command line using the normal RTS options.

valuestopHeapProfTimer :: IO ()

Stop heap profiling.

Note: This won't do anything unless you also specify a profiling mode on the command line using the normal RTS options.

valuerequestHeapCensus :: IO ()

Request a heap census on the next context switch. The census can be requested whether or not the heap profiling timer is running.

Note: This won't do anything unless you also specify a profiling mode on the command line using the normal RTS options.

valuerequestTickyCounterSamples :: IO ()

Request ticky counter samples to be written to the eventlog.

Note: This won't do anything unless you have specified RTS options on the command line to log ticky samples to the eventlog.