Re: [PATCH v3 04/13] kmem accounting basic infrastructure
From: Tejun Heo <tj@kernel.org>
Date: 2012-10-03 22:59:41
Also in:
linux-mm, lkml
From: Tejun Heo <tj@kernel.org>
Date: 2012-10-03 22:59:41
Also in:
linux-mm, lkml
Hello, Glauber. On Mon, Oct 01, 2012 at 12:46:02PM +0400, Glauber Costa wrote:
quoted
Yeah, it will need some hooks. For dentry and inode, I think it would be pretty well isolated tho. Wasn't it?We would still need something for the stack. For open files, and for everything that becomes a potential problem. We then end up with 35 different knobs instead of one. One of the perceived advantages of this approach, is that it condenses as much data as a single knob as possible, reducing complexity and over flexibility.
Oh, I didn't mean to use object-specific counting for all of them. Most resources don't have such common misaccounting problem. I mean, for stack, it doesn't exist by definition (other than cgroup migration). There's no reason to use anything other than first-use kmem based accounting for them. My point was that for particularly problematic ones like dentry/inode, it might be better to treat them differently. Thanks. -- tejun