From 0f03a01ca328b354e812751b2b307f244fcc463b Mon Sep 17 00:00:00 2001
From: Andreas Gampe <agampe@google.com>
Date: Mon, 9 May 2016 14:26:07 -0700
Subject: Frameworks/base: Make profile buffer adjustable

Add a debug system property to change the profile buffer size.

Bug: 26877591
Change-Id: Idd13f2bc6563fd88daadd1d6679f3243dab1a0ef
---
 core/java/android/app/ActivityThread.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index cf2ef4521291..938339410416 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -557,8 +557,9 @@ public final class ActivityThread {
                 return;
             }
             try {
+                int bufferSize = SystemProperties.getInt("debug.traceview-buffer-size-in-mb", 8);
                 VMDebug.startMethodTracing(profileFile, profileFd.getFileDescriptor(),
-                        8 * 1024 * 1024, 0, samplingInterval != 0, samplingInterval);
+                        bufferSize * 1024 * 1024, 0, samplingInterval != 0, samplingInterval);
                 profiling = true;
             } catch (RuntimeException e) {
                 Slog.w(TAG, "Profiling failed on path " + profileFile);
-- 
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