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authorBen Gamari <ben@smart-cactus.org>2019-08-04 18:44:59 -0400
committerMarge Bot <ben+marge-bot@smart-cactus.org>2019-08-10 14:40:03 -0400
commit422ffce0c65f34046fa5b4aea4f801a070bb5249 (patch)
tree208b972543b6e0616ba112422b311a6b59aef973
parent818602818bb8553b241271204d159d5a40971d5a (diff)
downloadhaskell-422ffce0c65f34046fa5b4aea4f801a070bb5249.tar.gz
Add timing on loadInterface
AndreasK recently mentioned that he thought that interface file loading may be a non-trivial cost. Let's measure.
-rw-r--r--compiler/iface/LoadIface.hs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/iface/LoadIface.hs b/compiler/iface/LoadIface.hs
index 497ddfc179..16963dcb94 100644
--- a/compiler/iface/LoadIface.hs
+++ b/compiler/iface/LoadIface.hs
@@ -399,7 +399,8 @@ loadInterface doc_str mod from
-- Redo search for our local hole module
loadInterface doc_str (mkModule (thisPackage dflags) (moduleName mod)) from
| otherwise
- = do { -- Read the state
+ = withTiming getDynFlags (text "loading interface") (pure ()) $
+ do { -- Read the state
(eps,hpt) <- getEpsAndHpt
; gbl_env <- getGblEnv