GHC.RTS.Events

Contents

• The event log types
• Reading an event log from a file
• Utilities
• Printing

Synopsis

• data EventLog = EventLog {
  • header :: Header
  • dat :: Data
  }
• data EventType = EventType {
  • num :: EventTypeNum
  • desc :: EventTypeDesc
  • size :: Maybe EventTypeSize
  }
• data Event = Event {
  • time :: !Timestamp
  • spec :: EventTypeSpecificInfo
  }
• data EventTypeSpecificInfo
  • = Startup {
    • n_caps :: Int
    }
  • | EventBlock {
    • end_time :: Timestamp
    • cap :: Int
    • block_events :: [Event]
    }
  • | CreateThread {
    • thread :: !ThreadId
    }
  • | RunThread {
    • thread :: !ThreadId
    }
  • | StopThread {
    • thread :: !ThreadId
    • status :: ThreadStopStatus
    }
  • | ThreadRunnable {
    • thread :: !ThreadId
    }
  • | MigrateThread {
    • thread :: !ThreadId
    • newCap :: !Int
    }
  • | RunSpark {
    • thread :: !ThreadId
    }
  • | StealSpark {
    • thread :: !ThreadId
    • victimCap :: !Int
    }
  • | CreateSparkThread {
    • sparkThread :: !ThreadId
    }
  • | WakeupThread {
    • thread :: !ThreadId
    • otherCap :: !Int
    }
  • | Shutdown {
    }
  • | RequestSeqGC {
    }
  • | RequestParGC {
    }
  • | StartGC {
    }
  • | GCWork {
    }
  • | GCIdle {
    }
  • | GCDone {
    }
  • | EndGC {
    }
  • | Message {
    • msg :: String
    }
  • | UserMessage {
    • msg :: String
    }
  • | UnknownEvent {
    • ref :: !EventTypeNum
    }
• data ThreadStopStatus
  • = NoStatus
  • | HeapOverflow
  • | StackOverflow
  • | ThreadYielding
  • | ThreadBlocked
  • | ThreadFinished
  • | ForeignCall
• newtype Header = Header {
  • eventTypes :: [EventType]
  }
• data Data = Data {
  • events :: [Event]
  }
• type Timestamp = Word64
• type ThreadId = Word32
• readEventLogFromFile :: FilePath -> IO (Either String EventLog)
• data CapEvent = CapEvent {
  • ce_cap :: Maybe Int
  • ce_event :: Event
  }
• sortEvents :: [Event] -> [CapEvent]
• groupEvents :: [Event] -> [(Maybe Int, [Event])]
• sortGroups :: [(Maybe Int, [Event])] -> [CapEvent]
• showEventTypeSpecificInfo :: EventTypeSpecificInfo -> String
• showThreadStopStatus :: ThreadStopStatus -> String

The event log types

Reading an event log from a file

Utilities

Printing