| commit | 052693578547681fdce5d61c3d59ec89cc445808 | [log] [tgz] |
|---|---|---|
| author | Romain Guy <romainguy@google.com> | Fri May 05 18:06:52 2023 -0700 |
| committer | Romain Guy <romainguy@google.com> | Mon May 08 12:08:01 2023 -0700 |
| tree | e364accb675e63a2816aa70e1d7e2ee0c5f648ce | |
| parent | dc4017bd6f7d544f5235ea80f513b8c5e046a411 [diff] |
Reduce memory allocations
This change removes several sources of memory allocations. In the descriptions
below, the use case was unchecking a checkbox in the Material 2 catalog demo
app:
- Removed the *largest* source of allocations (365 instances, also the largest
source in other tests) in Composition. addPendingInvalidationsLocked() used
a method-local function which caused the creation of a Ref$ObjectRef on every
invocation. This change promotes the function to a method that receives the
necessary parameters and returns the value previously directly assigned to
the invalidated variable in addPendingInvalidationsLocked().
- Removed ~300 allocations by using a built-in OkLab to/from sRGB color space
connector instead of falling back on the generic Rgb connector mechanism.
That fallback mechanism requires several types of objects to be allocated.
- Removed ~30 iterators or so by avoiding a call to addAll() in Recomposer.
- Removed ~30 iterators or so by introducing fastLastOrNull {} for
AndroidComposeView.
In compose.integration-tests.demo:
- Fixed NodeCoordinator.parentData to avoid creating a Ref$ObjectRef on
every call. Saves ~155 allocations when opening the row/colum demo.
Extra optimizations:
- Don't iterate the list of pointer changes twice in PointerEvent.android.kt
(fastForEach + map{} combined).
- Properly set the capacity for the list allocated in
MotionEventAdapter.android.kt.
RelNote: Removed allocations in recomposition, color animations, and AndroidComposeView
Test: compose.integration-tests.material-catalog
Test: compose.integration-tests.demos
Test: ListUtilsTest
Test: All tests in androidx.compose.runtime
Test: runtime.integration-tests
Change-Id: Ib2bfaf0af40bc0970424f86141ae24607a2b1223
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