diff options
Diffstat (limited to 'src/libexpr/eval.cc')
| -rw-r--r-- | src/libexpr/eval.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc index 38f198fb86ca..ee17c996c6f9 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(); } |