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Date: Mon, 27 Jun 2005 12:22:45 -0700 (PDT)
From: Christoph Lameter <christoph@lameter.com>
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To: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
cc: "'Badari Pulavarty'" <pbadari@us.ibm.com>,
       "'Nick Piggin'" <nickpiggin@yahoo.com.au>, Lincoln Dale <ltd@cisco.com>,
       Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org,
       linux-mm@kvack.org
Subject: RE: [rfc] lockless pagecache
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On Mon, 27 Jun 2005, Chen, Kenneth W wrote:

> I don't recall seeing tree_lock to be a problem for DSS workload either.

I have seen the tree_lock being a problem a number of times with large 
scale NUMA type workloads.