Re: [PATCH 3/4] mm: slub: Do not take expensive steps for SLUBs speculative high-order allocations

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

 



On Tue, 17 May 2011, Mel Gorman wrote:

> entirely. Christoph wants to maintain historic behaviour of SLUB to
> maximise the number of high-order pages it uses and at the end of the
> day, which option performs better depends entirely on the workload
> and machine configuration.

That is not what I meant. I would like more higher order allocations to
succeed. That does not mean that slubs allocation methods and flags passed
have to stay the same. You can change the slub behavior if it helps.

I am just suspicious of compaction. If these mods are needed to reduce the
amount of higher order pages then compaction does not have the
beneficial effect that it should have. It does not actually
increase the available higher order pages. Fix that first.



--
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