Messages in this thread | | | Date | Fri, 9 Aug 2013 15:53:09 -0700 | From | Andrew Morton <> | Subject | Re: [patch 0/9] mm: thrash detection-based file cache sizing v3 |
| |
On Tue, 6 Aug 2013 18:44:01 -0400 Johannes Weiner <hannes@cmpxchg.org> wrote:
> This series solves the problem by maintaining a history of pages > evicted from the inactive list, enabling the VM to tell streaming IO > from thrashing and rebalance the page cache lists when appropriate.
Looks nice. The lack of testing results is conspicuous ;)
It only really solves the problem in the case where
size-of-inactive-list < size-of-working-set < size-of-total-memory
yes? In fact less than that, because the active list presumably doesn't get shrunk to zero (how far *can* it go?). I wonder how many workloads fit into those constraints in the real world.
| |