Projects

Porting and Packing of Thunderbird 102.0 from X86 to Loongarch64 | Rust, Shell - May. 2023 ~ Jul.2023

Cross-compiled Rustc on LoongArch and established the necessary compilation environment for compiling Thunderbird.
Adapted the source code to ensure successful compilation and execution on the LoongArch64 platform.
- Conducted comprehensive testing with a total of 406 tests, achieving a pass rate of 95\% with 387 successful tests.
Integrated all modifications into a single patch and packaged the source code into an APT package.

Formulated a comprehensive set of syntactic and lexical rules and successfully implemented the parser and lexer.
Developed robust data structures and algorithms to facilitate semantic analysis.
Implemented seven basic operators and enabled the definition and invocation of custom functions.
Constructed a custom function that able to interpreter this language to achieve interpreter bootstrapping.

Developed a multithreaded program which leveraged MPI to parallelize the Sieve of Eratosthenes algorithm for the calculations of prime numbers up to any given limit.
Achieved a good performance metric, with calculations for a data size of one billion completed in just 0.52 seconds.

Designed and implemented a cluster storage engine and a B+ Tree based search engine of database.
Conducted and successfully passed more than 500 unit tests, covering basic storage functionalities to large-scale data retrieval scenarios.
Evaluated by a dataset of 10 million variable-length records, each averaging 8 bytes in size, and demonstrated the following performance metrics:
- Average search time per record: 0.04 ms.
- Average insertion time per record: 12,931 ms.

Designed and implemented a filesystem which combines traditional SSD and emerging non-volatile memory (NVM).
Proposed an innovative space layout management scheme that stores metadata on high-performance NVM and file data on SSD separately, reducing random Disk I/O.
Devised a buffer solution that fully utilized NVM as write buffer, consolidating multiple write disk requests into a single sequential write request for enhanced write throughput.
Implemented the prototype filesystem using Filesystem in Userspace (FUSE) and leveraged the Storage Performance Development Kit (SPDK) to drive the SSD while bypassing the kernel.

Evaluated various algorithms for the Five-in-a-Row board game and ultimately designed an AI agent primarily based on the Minimax algorithm, augmented with alpha-beta pruning and heuristic search for higher computational efficiency.
Demonstrated the robust performance of the agent, reacting to moves within approximately 4 seconds on average and exhibiting strong strategic gameplay.