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
diff --git a/runtime/primitive.h b/runtime/primitive.h
index 32bfdaf..3818487 100644
--- a/runtime/primitive.h
+++ b/runtime/primitive.h
@@ -27,21 +27,11 @@
static constexpr size_t kObjectReferenceSize = 4;
-template<size_t kComponentSize>
-size_t ComponentSizeShiftWidth() {
- switch (kComponentSize) {
- case 1:
- return 0U;
- case 2:
- return 1U;
- case 4:
- return 2U;
- case 8:
- return 3U;
- default:
- LOG(FATAL) << "Unexpected component size : " << kComponentSize;
- return 0U;
- }
+constexpr size_t ComponentSizeShiftWidth(size_t component_size) {
+ return component_size == 1u ? 0u :
+ component_size == 2u ? 1u :
+ component_size == 4u ? 2u :
+ component_size == 8u ? 3u : 0u;
}
class Primitive {
@@ -95,7 +85,7 @@
case kPrimFloat: return 2;
case kPrimLong:
case kPrimDouble: return 3;
- case kPrimNot: return ComponentSizeShiftWidth<kObjectReferenceSize>();
+ case kPrimNot: return ComponentSizeShiftWidth(kObjectReferenceSize);
default:
LOG(FATAL) << "Invalid type " << static_cast<int>(type);
return 0;