ghc-internal-9.1001.0: Basic libraries
Safe HaskellTrustworthy
LanguageHaskell2010

GHC.Internal.Profiling

Description

@since base-4.7.0.0

Synopsis

Cost Centre Profiling

startProfTimer :: IO () Source #

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.

@since base-4.7.0.0

stopProfTimer :: IO () Source #

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

@since base-4.7.0.0

Heap Profiling

startHeapProfTimer :: IO () Source #

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.

@since base-4.16.0.0

stopHeapProfTimer :: IO () Source #

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.

@since base-4.16.0.0

requestHeapCensus :: IO () Source #

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.

@since base-4.16.0.0