commit c785344b87221f5e4e6473e5b762e4e61fe65dcf
author Mathieu Chartier <mathieuc@google.com> Fri Mar 27 14:35:38 2015 -0700
committer Mathieu Chartier <mathieuc@google.com> Fri Apr 10 12:57:27 2015 -0700
tree cd32ad2c2604596a18926f04d4c313dab255ecfd
parent a29d93b380c9aeb8270e281aefbdd0c77a430d43

Move ArtField to native

Add linear alloc. Moved ArtField to be native object. Changed image
writer to put ArtFields after the mirror section.

Savings:
2MB on low ram devices
4MB on normal devices

Total PSS measurements before (normal N5, 95s after shell start):
Image size: 7729152 bytes
23112 kB: .NonMoving
23212 kB: .NonMoving
22868 kB: .NonMoving
23072 kB: .NonMoving
22836 kB: .NonMoving
19618 kB: .Zygote
19850 kB: .Zygote
19623 kB: .Zygote
19924 kB: .Zygote
19612 kB: .Zygote
Avg: 42745.4 kB

After:
Image size: 7462912 bytes
17440 kB: .NonMoving
16776 kB: .NonMoving
16804 kB: .NonMoving
17812 kB: .NonMoving
16820 kB: .NonMoving
18788 kB: .Zygote
18856 kB: .Zygote
19064 kB: .Zygote
18841 kB: .Zygote
18629 kB: .Zygote
3499 kB: .LinearAlloc
3408 kB: .LinearAlloc
3424 kB: .LinearAlloc
3600 kB: .LinearAlloc
3436 kB: .LinearAlloc
Avg: 39439.4 kB

No reflection performance changes.

Bug: 19264997
Bug: 17643507

Change-Id: I10c73a37913332080aeb978c7c94713bdfe4fe1c

runtime/hprof/hprof.cc

diff --git a/runtime/hprof/hprof.cc b/runtime/hprof/hprof.cc
index cdb3e2a..23af25d 100644
--- a/runtime/hprof/hprof.cc
+++ b/runtime/hprof/hprof.cc
@@ -37,6 +37,7 @@
 
 #include <set>
 
+#include "art_field-inl.h"
 #include "base/logging.h"
 #include "base/stringprintf.h"
 #include "base/unix_file/fd_file.h"
@@ -51,7 +52,6 @@
 #include "globals.h"
 #include "jdwp/jdwp.h"
 #include "jdwp/jdwp_priv.h"
-#include "mirror/art_field-inl.h"
 #include "mirror/class.h"
 #include "mirror/class-inl.h"
 #include "mirror/object-inl.h"
@@ -999,7 +999,7 @@
     __ AddClassStaticsId(klass);
 
     for (size_t i = 0; i < sFieldCount; ++i) {
-      mirror::ArtField* f = klass->GetStaticField(i);
+      ArtField* f = klass->GetStaticField(i);
 
       size_t size;
       HprofBasicType t = SignatureToBasicTypeAndSize(f->GetTypeDescriptor(), &size);
@@ -1038,7 +1038,7 @@
   int iFieldCount = klass->IsObjectClass() ? 0 : klass->NumInstanceFields();
   __ AddU2((uint16_t)iFieldCount);
   for (int i = 0; i < iFieldCount; ++i) {
-    mirror::ArtField* f = klass->GetInstanceField(i);
+    ArtField* f = klass->GetInstanceField(i);
     __ AddStringId(LookupStringId(f->GetName()));
     HprofBasicType t = SignatureToBasicTypeAndSize(f->GetTypeDescriptor(), nullptr);
     __ AddU1(t);
@@ -1102,7 +1102,7 @@
   while (!klass->IsObjectClass()) {
     int ifieldCount = klass->NumInstanceFields();
     for (int i = 0; i < ifieldCount; ++i) {
-      mirror::ArtField* f = klass->GetInstanceField(i);
+      ArtField* f = klass->GetInstanceField(i);
       size_t size;
       auto t = SignatureToBasicTypeAndSize(f->GetTypeDescriptor(), &size);
       switch (t) {