Architecture optimisation with currawong

Abstract

We describe Currawong, a tool to perform system software architecture optimisation . Currawong is an extensible tool which applies optimisations at the point where an application invokes framework or library code. Currawong does not require source code to perform optimisations, effectively decoupling the relationship between compilation and optimisation. We show, through examples written for the popular Android smartphone platform, that Currawong is capable of significant performance improvement to existing applications.

An enhanced touch event processing on Android

“…They communicate across processes using a custom IPC mechanism. Moreover, the complex layout of Android application programs gives rise to complications such as long view system processing time, in which the next scene cannot be displayed quickly enough [2,3]. For example, a touch event is processed by multiple layers of Android, in which events are exchanged between many threads and processes, having many factors that slow down the process.…”