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：US12235817B2

公开(公告)日：2025-02-25

申请号：US18475695

申请日：2023-09-27

Applicant: Lemon Inc. ,  Beijing Volcano Engine Technology Co., Ltd.

Inventor： Jiaxin Ou ,  Jingwei Zhang ,  Hao Wang ,  Hui Zhang ,  Ming Zhao ,  Yi Wang ,  Zhengyu Yang

IPC: G06F16/22 ,  G06F16/2455

Abstract: Systems and methods are provided for improved point querying of a database. The index values are separated from data and retained in cache memory to allow access without requiring a disk input/output (I/O) operation and thereby having less latency resulting from such disk I/O operations. The index values can be compressed using an algorithm such as Crit-Bit-Trie to allow storage of the index values in limited cache memory space. The index values can be selected for storage according to a least recently used approach when cache memory is insufficient to store all index values to maintain a hit rate for the cached portion and reduce the disk I/O operations.

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.