commit 6cff48f05894a60aa4742472983a75504536ca15
author Christopher Ferris <cferris@google.com> Sun Jan 26 21:36:13 2014 -0800
committer Andreas Gampe <agampe@google.com> Fri Oct 23 11:16:11 2015 -0700
tree bd399d46ef08cd836010f3119c8c5db054561267
parent 823e693aa946ba75cd047429e1290011a2ed8729

ART: Speed up thread stack tracing for ANRs

Share a BacktraceMap for all threads being dumped, which speeds up
ANR dumping. Results from Nexus 9 (average of five):

Before: 0.587s
After:  0.206s

Change-Id: Ia70e0dbd39049318c02de561e7b95258d4849467

runtime/runtime.cc

diff --git a/runtime/runtime.cc b/runtime/runtime.cc
index 6c459a3..556ba56 100644
--- a/runtime/runtime.cc
+++ b/runtime/runtime.cc
@@ -326,7 +326,7 @@
     if (self == nullptr) {
       os << "(Aborting thread was not attached to runtime!)\n";
       DumpKernelStack(os, GetTid(), "  kernel: ", false);
-      DumpNativeStack(os, GetTid(), "  native: ", nullptr);
+      DumpNativeStack(os, GetTid(), nullptr, "  native: ", nullptr);
     } else {
       os << "Aborting thread:\n";
       if (Locks::mutator_lock_->IsExclusiveHeld(self) || Locks::mutator_lock_->IsSharedHeld(self)) {