On Wed, Nov 11, 2015 at 10:54:50AM -0500, Tejun Heo wrote: > Hello, > > On Tue, Nov 10, 2015 at 09:54:01PM +0300, Vladimir Davydov wrote: > > > Am I correct in thinking that we should eventually be able to removed > > > __GFP_ACCOUNT and that only caches explicitly marked with SLAB_ACCOUNT > > > would need to be handled by kmemcg? > > > > Don't think so, because sometimes we want to account kmalloc. > > I'm kinda skeptical about that because if those allocations are > occassional by nature, we don't care and if there can be a huge number > of them, splitting them into a separate cache makes sense. I think it > makes sense to pin down exactly which caches are memcg managed. That > has the potential to simplify the involved code path and shave off a > small bit of hot path overhead. What about external_name allocation in __d_alloc? Is it occasional? Depends on the workload I guess. Can we create a separate cache for it? No, because its size is variable. There are other things like that, e.g. pipe_buffer array. Thanks, Vladimir -- 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>