公开(公告)号：US20240103722A1

公开(公告)日：2024-03-28

申请号：US17953242

申请日：2022-09-26

Applicant: Lemon Inc.

Inventor： Ping Zhou ,  Chaohong Hu ,  Kan Frankie Fan ,  Fei Liu ,  Longxiao Li ,  Hui Zhang

IPC: G06F3/06

CPC classification number: G06F3/0608 ,  G06F3/064 ,  G06F3/0644 ,  G06F3/0673

Abstract: The present disclosure describes techniques of metadata management for transparent block level compression. A first area may be created in a backend solid state drive. The first area may comprise a plurality of entries. The plurality of entries may be indexed by addresses of a plurality of blocks of uncompressed data. Each of the plurality of entries comprises a first part configured to store metadata and a second part configured to store compressed data. Each of the plurality blocks of uncompressed data may be compressed individually to generate a plurality of compressed blocks. Metadata and at least a portion of compressed data associated with each of the plurality of compressed blocks may be stored in one of the plurality of entries based on an address of a corresponding block of uncompressed data. A second area may be created in the backend solid state drive for storing the rest of the compressed data.

公开(公告)号：US12282655B2

公开(公告)日：2025-04-22

申请号：US18163612

申请日：2023-02-02

Applicant: Lemon Inc.

Inventor： Ping Zhou ,  Longxiao Li ,  Peng Xu ,  Kan Frankie Fan ,  Chaohong Hu ,  Fei Liu ,  Hui Zhang ,  Di Xu

IPC: G06F3/06

Abstract: A method for adaptive mapping for data compression includes determining an input/output (I/O) request pattern, dynamically switching between a segment mapping mode and a flat hash table mapping mode based on the determined I/O request pattern, updating a shared mapping table for the segment mapping mode and the flat hash table mapping mode, and adjusting an entry of the mapping table based on the determined I/O request pattern and a status of the entry.

公开(公告)号：US20230418512A1

公开(公告)日：2023-12-28

申请号：US18462108

申请日：2023-09-06

Applicant: Lemon Inc. ,  Douyin Vision Co., Ltd.

Inventor： Chul Lee ,  Hui Zhang ,  Bo Li ,  Shan Xiao ,  Ping Zhou ,  Fei Liu

IPC: G06F3/06

CPC classification number: G06F3/0655 ,  G06F3/0613 ,  G06F3/067

Abstract: Solutions are presented to reduce a number of data transfers between a host system and a storage device by utilizing a file path to identify data to be processed, thus enabling an offloading engine to independently locate the file and read corresponding data.