Total number of bytes allocated

Number of garbage collections performed

Maximum number of live bytes seen so far

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).

Number of bytes copied during GC

Current number of live bytes

Current number of bytes lost to slop

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

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

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

CPU time spent running GC

Wall clock time spent running GC

Total CPU time elapsed since program start

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.

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.