GHC.Stats (original) (raw)

Description

This module provides access to internal garbage collection and memory usage statistics. These statistics are not available unless a program is run with the -T RTS flag.

This module is GHC-only and should not be considered portable.

Synopsis

• data GCStats = GCStats {
  • bytesAllocated ::
  • numGcs ::
  • maxBytesUsed ::
  • numByteUsageSamples ::
  • cumulativeBytesUsed ::
  • bytesCopied ::
  • currentBytesUsed ::
  • currentBytesSlop ::
  • maxBytesSlop ::
  • peakMegabytesAllocated ::
  • mutatorCpuSeconds ::
  • mutatorWallSeconds ::
  • gcCpuSeconds ::
  • gcWallSeconds ::
  • cpuSeconds ::
  • wallSeconds ::
  • parTotBytesCopied ::
  • parMaxBytesCopied ::
    }
• getGCStats :: IO GCStats
• getGCStatsEnabled :: IO Bool

Documentation

data GCStats Source

Global garbage collection and memory statistics.

getGCStats :: IO GCStatsSource

Retrieves garbage collection and memory statistics as of the last garbage collection. If you would like your statistics as recent as possible, first run a [performGC](System-Mem.html#t:performGC).