Documentation

Fields

• bytesAllocated :: !Int64

  Total number of bytes allocated

• numGcs :: !Int64

  Number of garbage collections performed

• maxBytesUsed :: !Int64

  Maximum number of live bytes seen so far

• numByteUsageSamples :: !Int64

  Number of byte usage samples taken | Sum of all byte usage samples, can be used with numByteUsageSamples to calculate averages with arbitrary weighting (if you are sampling this record multiple times).

• cumulativeBytesUsed :: !Int64
   
• bytesCopied :: !Int64

  Number of bytes copied during GC

• currentBytesUsed :: !Int64

  Current number of live bytes

• currentBytesSlop :: !Int64

  Current number of bytes lost to slop

• maxBytesSlop :: !Int64

  Maximum number of bytes lost to slop at any one time so far

• peakMegabytesAllocated :: !Int64

  Maximum number of megabytes allocated | CPU time spent running mutator threads. This does not include any profiling overhead or initialization.

• mutatorCpuSeconds :: !Double
   
• mutatorWallSeconds :: !Double

  Wall clock time spent running mutator threads. This does not include initialization.

• gcCpuSeconds :: !Double

  CPU time spent running GC

• gcWallSeconds :: !Double

  Wall clock time spent running GC

• cpuSeconds :: !Double

  Total CPU time elapsed since program start

• wallSeconds :: !Double

  Total wall clock time elapsed since start | Number of bytes copied during GC, minus space held by mutable lists held by the capabilities. Can be used with parMaxBytesCopied to determine how well parallel GC utilized all cores.

• parTotBytesCopied :: !Int64
   
• parMaxBytesCopied :: !Int64

  Sum of number of bytes copied each GC by the most active GC thread each GC. The ratio of parTotBytesCopied divided by parMaxBytesCopied approaches 1 for a maximally sequential run and approaches the number of threads (set by the RTS flag -N) for a maximally parallel run.