Invention Grant
- Patent Title: Tail latency aware foreground garbage collection algorithm
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Application No.: US15461467Application Date: 2017-03-16
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Publication No.: US10261897B2Publication Date: 2019-04-16
- Inventor: Jongmin Gim , Hongzhong Zheng
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR
- Agency: Renaissance IP Law Group LLP
- Main IPC: G06F12/02
- IPC: G06F12/02

Abstract:
A Solid State Drive (SSD) is disclosed. The SSD may include a host interface logic to receive a write command from a host and flash memory to store data. The SSD may also include an SSD controller, which may include storage for a just-in-time threshold and a tail latency threshold flash translation layer. The flash translation layer may invoke a just-in-time garbage collection strategy when the number of free pages on the SSD is less than the just-in-time threshold, and a tail latency-aware garbage collection strategy when the number of free pages is less than the tail latency threshold. The tail latency-aware garbage collection strategy may pair the write command with a garbage collection command.
Public/Granted literature
- US20180210825A1 TAIL LATENCY AWARE FOREGROUND GARBAGE COLLECTION ALGORITHM Public/Granted day:2018-07-26
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