Enable sendfile() and splice() optimizations.

This can easily be reverted if we uncover any trouble.

Test: bit FrameworksCoreTests:android.os.FileUtilsTest
Test: vogar --mode app_process --benchmark frameworks/base/core/tests/benchmarks/src/android/os/FileUtilsBenchmark.java
Bug: 71932978
Change-Id: Iac97c342948074c4f373e5f2ae70e563b308a11e

diff --git a/core/java/android/os/FileUtils.java b/core/java/android/os/FileUtils.java
index 9a64cc7..21d245d 100644 (file)
--- a/core/java/android/os/FileUtils.java
+++ b/core/java/android/os/FileUtils.java
@@ -89,7 +89,7 @@ public class FileUtils {
 
     private static final File[] EMPTY = new File[0];
 
-    private static final boolean ENABLE_COPY_OPTIMIZATIONS = false;
+    private static final boolean ENABLE_COPY_OPTIMIZATIONS = true;
 
     private static final long COPY_CHECKPOINT_BYTES = 524288;