From 310e605995dc104bee29d330ac135e3e2bb82f97 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Mon, 8 May 2006 10:00:37 +0000
Subject: * Show evaluation stats when NIX_SHOW_STATS=1.

---
 src/libexpr/eval.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/libexpr/eval.cc')

diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 38f198fb86..ee17c996c6 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -527,9 +527,12 @@ extern "C" {
 
 void printEvalStats(EvalState & state)
 {
-    printMsg(lvlInfo,
+    bool showStats = getEnv("NIX_SHOW_STATS", "0") != "0";
+    printMsg(showStats ? lvlInfo : lvlDebug,
         format("evaluated %1% expressions, %2% cache hits, %3%%% efficiency, used %4% ATerm bytes")
         % state.nrEvaluated % state.nrCached
         % ((float) state.nrCached / (float) state.nrEvaluated * 100)
         % AT_calcAllocatedSize());
+    if (showStats)
+        printATermMapStats();
 }
-- 
cgit 1.4.1