@article{ART003218761},
author={Byung-Gook Kim and Ryu Gab Sang},
title={An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices},
journal={Journal of Internet of Things and Convergence},
issn={2466-0078},
year={2025},
volume={11},
number={3},
pages={195-201}
TY - JOUR
AU - Byung-Gook Kim
AU - Ryu Gab Sang
TI - An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices
JO - Journal of Internet of Things and Convergence
PY - 2025
VL - 11
IS - 3
PB - The Korea Internet of Things Society
SP - 195
EP - 201
SN - 2466-0078
AB - This paper presents a method to optimize garbage collection (GC) performance in NAND flash-based storage devices by applying a dynamic priority scheduling technique for input/output commands, including the TRIM command. The TRIM command, introduced in the ATA standard, enables the operating system to inform the storage device of data blocks that are no longer in use. This allows the device to proactively erase those blocks and secure available space for future writes.
However, because the processing of TRIM commands may interfere with the performance of read and write operations, it is typically treated with low priority. Meanwhile, when a NAND flash-based storage device enters a sustained performance state, the cost of garbage collection increases sharply due to a shortage of available blocks. To address this issue, this study proposes a dynamic priority scheduling scheme that adjusts the priority of TRIM commands during the sustained performance phase.
Experimental results demonstrate that the proposed approach improves garbage collection efficiency and has a positive impact on overall system performance
KW - NAND Flash Memory;Storage System;TRIM Command; Garbage Collection;Dynamic Priority Scheduling
DO -
UR -
ER -
Byung-Gook Kim and Ryu Gab Sang. (2025). An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices. Journal of Internet of Things and Convergence, 11(3), 195-201.
Byung-Gook Kim and Ryu Gab Sang. 2025, "An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices", Journal of Internet of Things and Convergence, vol.11, no.3 pp.195-201.
Byung-Gook Kim, Ryu Gab Sang "An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices" Journal of Internet of Things and Convergence 11.3 pp.195-201 (2025) : 195.
Byung-Gook Kim, Ryu Gab Sang. An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices. 2025; 11(3), 195-201.
Byung-Gook Kim and Ryu Gab Sang. "An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices" Journal of Internet of Things and Convergence 11, no.3 (2025) : 195-201.
Byung-Gook Kim; Ryu Gab Sang. An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices. Journal of Internet of Things and Convergence, 11(3), 195-201.
Byung-Gook Kim; Ryu Gab Sang. An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices. Journal of Internet of Things and Convergence. 2025; 11(3) 195-201.
Byung-Gook Kim, Ryu Gab Sang. An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices. 2025; 11(3), 195-201.
Byung-Gook Kim and Ryu Gab Sang. "An Efficient TRIM Scheduling Method for Optimizing Garbage Collection in NAND Flash-Based Storage Devices" Journal of Internet of Things and Convergence 11, no.3 (2025) : 195-201.
