![]() ![]() This optimization reduces memory consumption. Then some performance and memory consumption optimizations were applied.NET Core versions differ in performance and memory consumption, thus optimizations applied were not universal. As this support is required for Tizen, it had to be implemented from scratch.ĭuring this work all of the stages of compilation, that precede Code Generation, had to be updated to support ARM. RyuJIT was chosen as a compiler, but it didn’t support ARM. JIT translates stack-based Microsoft Intermediate Language (MSIL) bytecode to the target CPU machine code and applies various optimizations. NET Core on Tizen was performed in runtime, specifically, in JIT compiler. Main part of work related to enabling of. Section 2.2 describes Tizen-specific development tools. Section 2.1 includes high-level overview of. NET implementation specifics, both of virtual machine and developer tools. The goal of this paper is to describe Tizen. The details of those optimizations will be described below. NET Core on devices with small amount of memory and low- and mid-level CPUs. All this work has been done for Tizen and ARM CPU, as well as Tizen specific performance optimizations, which allowed to deploy. Furthermore, development tools like debuggers and profilers should also be created for non-supported operating system. For example, the following parts of virtual machine should be updated or created from scratch: JIT compiler, low level code of virtual machine, which deals with operating system, parts of frameworks interacting with hardware. Moving an ecosystem to a new operating system and CPU requires a large amount of work and optimization of existing code base. Table 1 shows comparison for different languages and technologies on the Samsung Galaxy Gear Watch 2 with Tizen 5.0 and Stopwatch application. They provide reach set of features and frameworks for application developers and demonstrate good performance and memory consumption. NET Core and C# language mitigate problems of the two approaches described above. These metrics are essential for consumer electronics, thus web-applications can not be chosen as the most satisfying development solution. Native applications are much better optimized and customized in comparison with web-applications. However, this approach is not effective in terms of hardware resources usage, specifically, startup time and memory consumption. It allows to create applications very easily and fast. While JavaScript and HTML5 gained popularity, this approach became very attractive. Web applications propose another approach to applications development on Tizen. They require long development cycle and provide poor memory safety. This solution has demonstrated good performance and memory consumption of applications, but currently C/C++ languages are not very popular anymore because of difficulty of development. Initially developers were provided with native SDK with C/C++ support. Throughout the long history of Tizen, variety of different technologies and languages were available to application developers.
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