Re: [patch 0/9] mm: thrash detection-based file cache sizing v6

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sun, 24 Nov 2013 18:38:19 -0500 Johannes Weiner <hannes@xxxxxxxxxxx> wrote:

> This series solves the problem by maintaining a history of pages
> evicted from the inactive list, enabling the VM to detect frequently
> used pages regardless of inactive list size and facilitate working set
> transitions.

It's a very readable patchset - thanks for taking the time to do that.

> 31 files changed, 1253 insertions(+), 401 deletions(-)

It's also a *ton* of stuff.  More code complexity, larger kernel data
structures.  All to address a quite narrow class of workloads on a
relatively small window of machine sizes.  How on earth do we decide
whether it's worth doing?

Also, what's the memcg angle?  This is presently a global thing - do
you think we're likely to want to make it per-memcg in the future?

--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux