[LSF/MM TOPIC] File system memory management topics

[LSF/MM TOPIC] File system memory management topics

[Josef Bacik]

Hello,

I've been lazily working through various mm related issues with file systems for
the last couple of years and would like to talk about current progress and work
thats left to be done.  Some of the topics I want to cover are

* Metadata tracking, writeback, and reclaim
* Smarter fs cache shrinking
* Non-page size block size handling

Dave please tell me you are going to be there this year?  It's going to be
completely useless for me to talk about this stuff if you aren't in the room.
These are all big topics in and of themselves so if we just need to get you, me,
Jan, and some poor MM guy locked in a room with a couple of bottles of liquor
until we figure it out then that's fine.

I'm hoping to have the metadata tracking stuff fixed up and at least mergable by
LSF, but there's still stuff to be added to that infrastructure later on, and
the other topics we need to agree on a direction.  Thanks,

Josef

Re: [LSF/MM TOPIC] File system memory management topics

[Chandan Rajendra]

On Thursday, February 1, 2018 8:04:22 PM IST Josef Bacik wrote:
> Hello,
> 
> I've been lazily working through various mm related issues with file systems for
> the last couple of years and would like to talk about current progress and work
> thats left to be done.  Some of the topics I want to cover are
> 
> * Metadata tracking, writeback, and reclaim
> * Smarter fs cache shrinking
> * Non-page size block size handling
> 

The above list of items mentioned by Josef is very important (especially w.r.t
Btrfs' subpage-blocksize support) for getting 4k blocksized filesystems to
work well for architectures like PPC64 and AARCH64 which [can] have 64k page
size. Hence I would request that these topics gets discussed during this
year's LSF/MM summit.

> Dave please tell me you are going to be there this year?  It's going to be
> completely useless for me to talk about this stuff if you aren't in the room.
> These are all big topics in and of themselves so if we just need to get you, me,
> Jan, and some poor MM guy locked in a room with a couple of bottles of liquor
> until we figure it out then that's fine.
> 
> I'm hoping to have the metadata tracking stuff fixed up and at least mergable by
> LSF, but there's still stuff to be added to that infrastructure later on, and
> the other topics we need to agree on a direction.  Thanks,
> 

-- 
chandan