| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
GHC.RTS.Flags
Description
Accessors to GHC RTS flags.
Descriptions of flags can be seen in
GHC User's Guide,
or by running RTS help message using +RTS --help.
Since: 4.8.0.0
Synopsis
- data RTSFlags = RTSFlags {}
- data GCFlags = GCFlags {
- statsFile :: Maybe FilePath
- giveStats :: GiveGCStats
- maxStkSize :: Nat
- initialStkSize :: Nat
- stkChunkSize :: Nat
- stkChunkBufferSize :: Nat
- maxHeapSize :: Nat
- minAllocAreaSize :: Nat
- minOldGenSize :: Nat
- heapSizeSuggestion :: Nat
- heapSizeSuggestionAuto :: Bool
- oldGenFactor :: Double
- pcFreeHeap :: Double
- generations :: Nat
- steps :: Nat
- squeezeUpdFrames :: Bool
- compact :: Bool
- compactThreshold :: Double
- sweep :: Bool
- ringBell :: Bool
- frontpanel :: Bool
- idleGCDelayTime :: Time
- doIdleGC :: Bool
- heapBase :: Word
- allocLimitGrace :: Word
- data ConcFlags = ConcFlags {
- ctxtSwitchTime :: Time
- ctxtSwitchTicks :: Int
- data MiscFlags = MiscFlags {
- tickInterval :: Time
- installSignalHandlers :: Bool
- machineReadable :: Bool
- linkerMemBase :: Word
- data DebugFlags = DebugFlags {}
- data CCFlags = CCFlags {
- doCostCentres :: DoCostCentres
- profilerTicks :: Int
- msecsPerTick :: Int
- data ProfFlags = ProfFlags {
- doHeapProfile :: DoHeapProfile
- heapProfileInterval :: Time
- heapProfileIntervalTicks :: Word
- includeTSOs :: Bool
- showCCSOnException :: Bool
- maxRetainerSetSize :: Word
- ccsLength :: Word
- modSelector :: Maybe String
- descrSelector :: Maybe String
- typeSelector :: Maybe String
- ccSelector :: Maybe String
- ccsSelector :: Maybe String
- retainerSelector :: Maybe String
- bioSelector :: Maybe String
- data TraceFlags = TraceFlags {
- tracing :: DoTrace
- timestamp :: Bool
- traceScheduler :: Bool
- traceGc :: Bool
- sparksSampled :: Bool
- sparksFull :: Bool
- user :: Bool
- data TickyFlags = TickyFlags {
- showTickyStats :: Bool
- tickyFile :: Maybe FilePath
- getRTSFlags :: IO RTSFlags
- getGCFlags :: IO GCFlags
- getConcFlags :: IO ConcFlags
- getMiscFlags :: IO MiscFlags
- getDebugFlags :: IO DebugFlags
- getCCFlags :: IO CCFlags
- getProfFlags :: IO ProfFlags
- getTraceFlags :: IO TraceFlags
- getTickyFlags :: IO TickyFlags
Documentation
Constructors
Fields
Constructors
Fields
- statsFile :: Maybe FilePath
- giveStats :: GiveGCStats
- maxStkSize :: Nat
- initialStkSize :: Nat
- stkChunkSize :: Nat
- stkChunkBufferSize :: Nat
- maxHeapSize :: Nat
- minAllocAreaSize :: Nat
- minOldGenSize :: Nat
- heapSizeSuggestion :: Nat
- heapSizeSuggestionAuto :: Bool
- oldGenFactor :: Double
- pcFreeHeap :: Double
- generations :: Nat
- steps :: Nat
- squeezeUpdFrames :: Bool
- compact :: Bool
True = "compact all the time"
- compactThreshold :: Double
- sweep :: Bool
use "mostly mark-sweep" instead of copying for the oldest generation
- ringBell :: Bool
- frontpanel :: Bool
- idleGCDelayTime :: Time
- doIdleGC :: Bool
- heapBase :: Word
address to ask the OS for memory
- allocLimitGrace :: Word
Constructors
Fields
- tickInterval :: Time
- installSignalHandlers :: Bool
- machineReadable :: Bool
- linkerMemBase :: Word
address to ask the OS for memory for the linker, 0 ==> off
data DebugFlags Source
Flags to control debugging output & extra checking in various subsystems.
Constructors
Fields
- scheduler :: Bool
s- interpreter :: Bool
i- weak :: Bool
w- gccafs :: Bool
G- gc :: Bool
g- block_alloc :: Bool
b- sanity :: Bool
S- stable :: Bool
t- prof :: Bool
p- linker :: Bool
lthe object linker- apply :: Bool
a- stm :: Bool
m- squeeze :: Bool
zstack squeezing & lazy blackholing- hpc :: Bool
ccoverage- sparks :: Bool
r
Instances
Constructors
Fields
- doHeapProfile :: DoHeapProfile
- heapProfileInterval :: Time
time between samples
- heapProfileIntervalTicks :: Word
ticks between samples (derived)
- includeTSOs :: Bool
- showCCSOnException :: Bool
- maxRetainerSetSize :: Word
- ccsLength :: Word
- modSelector :: Maybe String
- descrSelector :: Maybe String
- typeSelector :: Maybe String
- ccSelector :: Maybe String
- ccsSelector :: Maybe String
- retainerSelector :: Maybe String
- bioSelector :: Maybe String
data TraceFlags Source
Constructors
Fields
- tracing :: DoTrace
- timestamp :: Bool
show timestamp in stderr output
- traceScheduler :: Bool
trace scheduler events
- traceGc :: Bool
trace GC events
- sparksSampled :: Bool
trace spark events by a sampled method
- sparksFull :: Bool
trace spark events 100% accurately
- user :: Bool
trace user events (emitted from Haskell code)
Instances
data TickyFlags Source
Instances