Re: Proposal: Use hi-res clock for file timestamps

Andi Kleen
2010-08-18T17:50:47Z

> - nfsd updates it whenever it reads an mtime out of an inode that matches
> current_fs_time to the granularity of 1/HZ.

That means you have a very very hot cache line on a larger system
if there are a lot of mtime changes. Probably a bad idea.

-Andi