On Tue, Oct 28, 2014 at 9:47 PM, Matt Mullins <mmullins@xxxxxxx> wrote: > On Sat, Sep 27, 2014 at 11:15:16PM +0400, Konstantin Khlebnikov wrote: >> This patch fixes all of them. > > It seems to have rendered virtio_balloon completely ineffective without > CONFIG_COMPACTION and CONFIG_BALLOON_COMPACTION, even for the case that I'm > expanding the memory available to my VM. What do you mean by ineffective? That it cannot handle fragmentation? I saw that without compaction ballooning works even better: it allocates pages without GFP_MOVABLE and buddy allocator returns much less scattered pages. > > Was this intended? Should Kconfig be updated so that VIRTIO_BALLOON depends on > BALLOON_COMPACTION now? Nope, this is independent feature. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>