Today I did little benchmarking on my local machine to compare plain text speed of different Haskell web frameworks, and I noticed something strange. Almost all the frameworks that I tested, performed better when
#14256: GHCi is faster than compiled code -------------------------------------+------------------------------------- Reporter: mpickering | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- A stackoverflow user Milad Zahedi reports that running his code in GHCi is 50x faster than compiling it and running the compiled binary. they were run from GHCi compared to compiled version. here are my results
I know that these numbers do not reflect on these frameworks speed, since they are not well tuned or optimized, but my question is why are
{{{ +------------------------------------ |framework| GHCi rpm | compiled rpm +---------+------------+------------- |snap | 8000 | 150 +---------+------------+------------- |yesod | 6000 | 2500 +---------+------------+------------- |scotty | 22000 | 9500 +---------+------------+------------- |servant | 17000 | 8500 +---------+------------+------------- |spock | 3300 | 2700 +---------+------------+------------- }}} these frameworks performing better when launched from GHCi. Am I doing something wrong ?
in order to build them I simply run stack build
The benchmarks are from https://github.com/miladz68/haskell-webframework- comparison This ticket is to verify and investigate these claims. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14256 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler