diff --git a/gtsam/base/cholesky.cpp b/gtsam/base/cholesky.cpp
index 9585d024b..80c983323 100644
--- a/gtsam/base/cholesky.cpp
+++ b/gtsam/base/cholesky.cpp
@@ -225,11 +225,12 @@ void choleskyPartial(MatrixColMajor& ABC, size_t nFrontal) {
     }
     toc(1, "dpotrf");
   } else {
+    tic(1, "choleskyCareful");
     bool fullRank = choleskyCareful(ABC, nFrontal).second;
     if(!fullRank)
       throw invalid_argument("Rank-deficient");
+    toc(1, "choleskyCareful");
   }
-  toc(1, "dpotrf");
 
 #ifndef NDEBUG
   // Check for non-finite values
diff --git a/gtsam/base/timing.h b/gtsam/base/timing.h
index 28bfce9c8..c72e51c3b 100644
--- a/gtsam/base/timing.h
+++ b/gtsam/base/timing.h
@@ -188,7 +188,13 @@ inline void toc_(size_t id) {
 }
 
 inline void toc_(size_t id, const std::string& label) {
-  assert(label == timingCurrent.lock()->label_);
+#ifndef NDEBUG
+  if(label != timingCurrent.lock()->label_) {
+    std::cerr << "gtsam timing:  toc called with id=" << id << ", label=\"" << label << "\", but expecting \"" << timingCurrent.lock()->label_ << "\"" << std::endl;
+    timingRoot->print();
+    exit(1);
+  }
+#endif
   toc_(id);
 }
 
diff --git a/gtsam/inference/JunctionTree-inl.h b/gtsam/inference/JunctionTree-inl.h
index 517691ee7..4ce33da41 100644
--- a/gtsam/inference/JunctionTree-inl.h
+++ b/gtsam/inference/JunctionTree-inl.h
@@ -38,6 +38,7 @@ namespace gtsam {
   /* ************************************************************************* */
   template <class FG>
   void JunctionTree<FG>::construct(const FG& fg, const VariableIndex& variableIndex) {
+    tic(1, "JT Constructor");
     tic(1, "JT symbolic ET");
     const typename EliminationTree<IndexFactor>::shared_ptr symETree(EliminationTree<IndexFactor>::Create(fg, variableIndex));
     toc(1, "JT symbolic ET");
@@ -52,6 +53,7 @@ namespace gtsam {
     tic(4, "distributeFactors");
     this->root_ = distributeFactors(fg, sbt.root());
     toc(4, "distributeFactors");
+    toc(1, "JT Constructor");
   }
 
   /* ************************************************************************* */
@@ -191,9 +193,11 @@ namespace gtsam {
   template <class FG>
   typename JunctionTree<FG>::BayesTree::sharedClique JunctionTree<FG>::eliminate(bool cache) const {
     if(this->root()) {
+      tic(2,"JT eliminate");
       pair<typename BayesTree::sharedClique, typename FG::sharedFactor> ret = this->eliminateOneClique(this->root(), cache);
       if (ret.second->size() != 0)
         throw runtime_error("JuntionTree::eliminate: elimination failed because of factors left over!");
+      toc(2,"JT eliminate");
       return ret.first;
     } else
       return typename BayesTree::sharedClique();