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Sender: Alexander Motin <mavbsd@gmail.com>
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Date: Sat, 30 Apr 2011 09:54:02 +0300
From: Alexander Motin <mav@FreeBSD.org>
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Subject: TRIM clustering
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X-List-Received-Date: Sat, 30 Apr 2011 06:54:21 -0000

Hi.

I've noticed that on file deletion from UFS with TRIM enabled, kernel
issues BIO_DELETE for each 16K (block size?) separately -- thousands per
second for single big file deletion. Fortunately ada driver will try to
aggregate them for the device, but won't some clustering code worth to
be there?

-- 
Alexander Motin