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http://haskell.org/haskellwiki/GHC
Profilingprofiling | -prof | show runtime-system statistics | +RTS -T | save runtime-system statistics to file | +RTS -tfile | all bindings not marked INLINE | -fprof-auto | all top-level bindings not marked INLINE | -fprof-auto-top | all exported bindings nto marked INLINE | -fprof-auto-exported | all call sites | -fprof-auto-calls |
Flow of Heap Profilingcompiling with | -prof -fprof-auto -rtsopts | running with | +RTS -h | visualizing with | hp2ps *.hp | colored OUTPUT | hp2ps -c *.hp |
- category settingbreak by cost-center | -hc | break by module | -hm | break by constructor/closure | -hd | break by type | -hy |
- hp2ps optionsplace rough bands on top | -d | big box for title | -b | EPS for latex | -e | for preview | -g | limit to n bands | -mn | use the previous parameters | -p | color output | -c | ignore marks | -y | print help | -? |
| | Flow of Time Profilingcompiling with | -prof -fprof-auto -rtsopts | running with | +RTS -p | OUTPUT | *.prof |
Flow of Stack Tracecompiling with | -prof -fprof-auto -rtsopts | running with | +RTC -xc |
Flow of Code Coveragecompiling with | -fhpc | running | no options need | reporting | hpc report tix file | making html files | hpc markup tix file |
Coverage data is stored in *.tix file. - hpc optionsdisplay help | hpc help | report coverage | hpc report | make html files | hpc markup | sum multiple coverages | hpc sum | combine two coverages | hpc combine | show in verbose mode | hpc show | display version | hpc version |
Optimizationoptimization level | -On (n =1,2,3,4) | no optimization | -O0 | make constructor fields strict | -funbox-strict-fields | static argument transformation | -fstatic-argument-transformation | for IO/ST monad | -fno-state-hack |
| | RTS options for GCallocation area size | -Asize (default: 512KB) | suggested heap size | -Hsize (default: 0KB) | maximum heap size | -Msize (default: unlimited) |
BackendsNative Code Generator | -fasm | LLVM | -fllvm |
SMP Parallelismuse thread | -threaded | avoid repeated computation of thunks | -feager-blackholing | avoid waiting | -fno-strictness | use n threads | +RTS -Nn | use all processors | +RTS -N | pin threads | +RTS -qa | enable auto thread migration | +RTS -qm |
- debug parallelismmake eventlog of parallel sparks (sampled) | -lp (default) | make eventlog of parallel sparks (fully accurate) | -lf |
eventlog is stored as *.eventlog |
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