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Re: noatime mounts inhibiting atime updates via utime()

On Tue, Dec 04, 2018 at 08:23:20PM -0800, Jason Thorpe wrote:
> This is especially important with solid state drives.  Those inode updates that write less-than-a-NAND-chunk worth fragment the drive's translation tables, which eventually leads to write amplification and reduced lifespan of the drive.

Yes - this originally came to my attention with LFS, where at one
point in the distant past, the atime updates were triggering
full-segment writes for every file *read*!

I think LFS may still have a local workaround for this.  Perhaps it
should be generalized.

 Thor Lancelot Simon	                           
  "Whether or not there's hope for change is not the question.  If you
   want to be a free person, you don't stand up for human rights because
   it will work, but because it is right."	--Andrei Sakharov

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