Create filesystem based storage for performance. #209
Description
Motivation
Currently, Flame is using SQLite for the storage. But the performance of SQLite is not good enough for multi-thread read/write, including frontend/backend/scheduling.
As Flame has specific data struct, we'd like to build a file system based storage for better performance.
Function Specification
Build a high throughput storage for Flame.
Solutions
FS is required for that.
Additional context
N/A