diff options
Diffstat (limited to 'libraries')
| -rw-r--r-- | libraries/base/GHC/Stats.hsc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libraries/base/GHC/Stats.hsc b/libraries/base/GHC/Stats.hsc index 7bcc221c5f..0e501da08b 100644 --- a/libraries/base/GHC/Stats.hsc +++ b/libraries/base/GHC/Stats.hsc @@ -47,6 +47,7 @@ data GCStats = GCStats , 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 @@ -57,9 +58,11 @@ data GCStats = GCStats , 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 + -- | Wall clock time spent running mutator threads. This does not -- include initialization. , mutatorWallSeconds :: !Double @@ -67,11 +70,13 @@ data GCStats = GCStats , 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 + -- | 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 |