Should I use Noatime SSD?

Mounting SSD filesystems The performance of SSDs is also influenced by filesystem mounting options: Add the “noatime” (or “relatime”) mount option in /etc/fstab, to disable (or significantly reduce) disk writes whenever a file is read. This improves filesystem read performance for both SSDs and HDDs.

Is Ext4 good for SSD?

Ext4 is the most common Linux filesystem (well maintained). It provides good performance with SSD and supports the TRIM (and FITRIM) feature to keep good SSD performance over time (this clears unused memory blocks for quick later write access).

Does Linux support SSD TRIM?

SSD TRIM commands are only supported on Linux distributions using the 2.6. 33 kernel or later versions.

Do modern SSDs need TRIM?

TRIM isn’t magical, and you don’t have to have it. Modern SSDs with garbage collection will work fine without it (and most SSD OEMs have utilities available to “refresh” SSDs that are being used in non-TRIM environments).

What does Noatime mean?

Linux records information about when files were created and last modified as well as when it was last accessed. The importance of the noatime setting is that it eliminates the need by the system to make writes to the file system for files which are simply being read. …

Do NVME SSD need trim?

Trim is something that was never required for HDDs, so it was a new command that was defined once SSDs became prevalent. The command is required because of one of those awkward encumbrances that NAND users must accommodate: Erase before write.

What is fstab Noatime?

Linux has a special mount option for file systems called noatime that can be added to each line that addresses one file system in the /etc/fstab file. The importance of the noatime setting is that it eliminates the need by the system to make writes to the file system for files which are simply being read.

When to use The noatime mount flag in fstab?

noatime Mount Flag. Using the noatime mount flag in the /etc/fstab file stops the logging of read access times to the file system. The noatime mount flag eliminates the need for the system to make timestamp writes for files which are simply being read.

Is it possible to get a performance boost with noatime?

This performance tweak might not be very noticeable on very fast modern drives (like NVME or a fast SSD), but there’s still a little boost there. If you know you don’t use software that requires atime, then you can get a slight performance boost by setting noatime in your /etc/fstab file.

When was last modified / etc / fstab file?

Here’s an example of the /etc/fstab file on one of my test servers: From the output, you can see this file was created on April 25, 2019, when I installed the system. My /etc/fstab file was last modified on May 16, 2019, and any other attributes were changed at around the same time.

What is the relatime option for noatime in Linux?

The relatime option was introduced to mitigate the issues with the noatime option. If relatime option is used, the atime is updated when: old atime is <= than mtime/ctime. at least 24 hours (hardcoded in fs/inode.c) have passed since the last atime update.