ext4discardperformance

2022年2月19日 — Discard can effect performance if it decides to trim during disk activity. Discard=async tries to delay trim until another later time, so ...

2021年9月2日 — ... performance improvements to big improvements for XFS and now ... Another significant optimization with Linux 5.15 for EXT4 is moving the DISCARD ...

2011年7月8日 — I'm trying to understand this completely. I somewhat recently setup an SSD under linux and ext4 as well. All the research I've done says by all ...

2023年5月25日 — I'd like to improve performance a bit, and I'm wondering if I could do that by setting discard=async . I know I could probably get better ...

2021年5月16日 — This often has a negative performance impact, so it's generally better not to use that mount option and to instead run fstrim periodically, ...

XFS does discard asynchronously, while ext4 and Btrfs do it synchronously. ... Did the possibility of running online measurements of TRIM performance come up?

This minimizes the impact on the system performance while file system's inode table is being initialized. discard Controls whether ext4 should issue discard ...

dm-crypt. Warning: The discard option allows discard requests to be passed through the encrypted block device. This may or may not improve performance on SSD ...

2023年5月29日 — ... discard/TRIM, or a particular firmware version). Basics. Use a reasonably recent Linux (kernel); Use the latest firmware for the SSD. Use a ...

2015年7月11日 — Since trim is supposed to (and does) prevent performance degradation - in the long term. Long term means it's fine to do fstrim weekly or ...