New opportunities for XO-1 memory pressure issues

[Daniel Drake]

On 22 November 2010 16:03, Martin Langhoff <martin.langhoff at gmail.com> wrote:
>  - XO-1 gets left alone in VM-lessness.

Regarding the issue where the XO-1 is brought to its knees and stops
responding (or just responds incredibly slowly) due to being
overloaded, 3 new possible options for solving this have cropped up in
the last few weeks:

1. Linux 2.6.36 has a new OOM killer, which might perform better and
kill things without letting the system become really unresponsive
http://lwn.net/Articles/391222/

2. As blogged about in various places, Linux has recently seen a lot
of attention in the area of performing well under load. According to
the blogs, the improvements are drastic. Some patches have gone into
2.6.37 and some will go into 2.6.38.

3. Some people think swap will help. F14 images now run UBIFS which
supports writable mmap. Therefore we can put a swap file on the root
filesystem and enable swap.

Daniel