Re: [PATCH 10/11] VFS: Cache request_queue in struct block_device
From: Andi Kleen
Date: Thu Aug 18 2011 - 17:03:59 EST
Is the performance gain because of this one less dereference really
substantial.
Yes it is measurable on a large macro benchmark.
The gain is from doing the prefetch early enough, and that needs the
additional pointer.
-Andi
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