Re: [PATCH 00/23] per device dirty throttling -v8

Christoph Hellwig
2007-08-05T20:34:13Z

On Sun, Aug 05, 2007 at 11:01:18AM -0700, Arjan van de Ven wrote:
>
> on the journalling side this would be one transaction (not 5 milion)
> and... since inodes are grouped on disk, you can even get some better
> coalescing this way...
>
> Wonder if we could do inode-grouping smartly; eg if we HAVE to write
> inode X, also write out the atime-dirty inodes in range X-Y to X+Y
> (where Y is some tunable) in the same IO..

We already have filesystems in the tree that do such advances things as
inode writeback clustering for more than ten years :)