| Safe Haskell | Trustworthy |
|---|---|
| Language | Haskell2010 |
GHC.Internal.Profiling
Description
Since: base-4.7.0.0
Synopsis
- startProfTimer :: IO ()
- stopProfTimer :: IO ()
- startHeapProfTimer :: IO ()
- stopHeapProfTimer :: IO ()
- requestHeapCensus :: IO ()
- requestTickyCounterSamples :: IO ()
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
Ticky counters (eventlog)
requestTickyCounterSamples :: IO () Source #
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.
Since: base-4.20.0.0