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Linux SSD TRIM support in 2023
(lemmy.world)
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this post was submitted on 03 Sep 2023
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There are some differences between distros as to whether TRIM is enabled by default or not (I've read Ubuntu enables it by default, but Debian does not). That said, depending on what file-system your ssd is formatted with it may be enabled by default at that level. The most-often recommended file-systems for SSDs are Btrfs and F2FS, both of which support and enable TRIM by default (as of Linux 6.2 for Btrfs, so if you are running an older kernel version you might need to manually enable it). I think most distro installers support using Btrfs as the main file-system, but F2FS is a bit more hit and miss I think. Safest bet would be to investigate once you settle on a distro, but support should be pretty standard, even if it's not enabled by default.
This is great to know on multiple levels because in Windows it is triggered from the OS, I think as a weekly task, and NTFS has little to do with it as far as I know.
It's also good to know that support is pretty standard now, as a lot of what I found online was just old and the rest assumed I'd already be familiar with it. Bad assumption, lol.
I don't know enough to have a preference one way or another for a specific file system, so I can just start with Btrfs and go forward with that. I can also read up on Btrfs further on its own, which I now know to do.
Absolutely. But this gets me started, and pointed in the right direction. Many thanks.
This is a bit of misinformation. There is no evidence other filesystems have any downsides on an SSD. Use the default choice of your distribution. Roughly nobody uses F2FS on desktops. EXT4 is entirely reasonable and supports TRIM.
XFS supports trim too, and is arguably the highest performing filesystem for NVMEs in terms of multi-theaded use-cases. BTRFs is among the slowest filesystems for NVMEs both in IOPS and sequential metrics.
Indeed. BTRFS is a different class of filesystem in terms of features too. Their merits are more than “SSD support”.
Ext4 seems to be the default across the distros I've looked at so if I can just run with that, all the better. Thank you for pointing this out, much appreciated.