GHC.Stats (original) (raw)

Contents

• Runtime statistics

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.

Since: 4.5.0.0

Synopsis

• data RTSStats = RTSStats {
  • gcs :: Word32
  • major_gcs :: Word32
  • allocated_bytes :: Word64
  • max_live_bytes :: Word64
  • max_large_objects_bytes :: Word64
  • max_compact_bytes :: Word64
  • max_slop_bytes :: Word64
  • max_mem_in_use_bytes :: Word64
  • cumulative_live_bytes :: Word64
  • copied_bytes :: Word64
  • par_copied_bytes :: Word64
  • cumulative_par_max_copied_bytes :: Word64
  • cumulative_par_balanced_copied_bytes :: Word64
  • init_cpu_ns :: RtsTime
  • init_elapsed_ns :: RtsTime
  • mutator_cpu_ns :: RtsTime
  • mutator_elapsed_ns :: RtsTime
  • gc_cpu_ns :: RtsTime
  • gc_elapsed_ns :: RtsTime
  • cpu_ns :: RtsTime
  • elapsed_ns :: RtsTime
  • gc :: GCDetails
    }
• data GCDetails = GCDetails {
  • gcdetails_gen :: Word32
  • gcdetails_threads :: Word32
  • gcdetails_allocated_bytes :: Word64
  • gcdetails_live_bytes :: Word64
  • gcdetails_large_objects_bytes :: Word64
  • gcdetails_compact_bytes :: Word64
  • gcdetails_slop_bytes :: Word64
  • gcdetails_mem_in_use_bytes :: Word64
  • gcdetails_copied_bytes :: Word64
  • gcdetails_par_max_copied_bytes :: Word64
  • gcdetails_par_balanced_copied_bytes :: Word64
  • gcdetails_sync_elapsed_ns :: RtsTime
  • gcdetails_cpu_ns :: RtsTime
  • gcdetails_elapsed_ns :: RtsTime
    }
• type RtsTime = Int64
• getRTSStats :: IO RTSStats
• getRTSStatsEnabled :: IO Bool