lkml.org 
[lkml]   [2013]   [Aug]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [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.



    \
     
     \ /
      Last update: 2013-08-10 01:21    [W:2.672 / U:0.904 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site