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From: Zach Brown <zab@redhat.com>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
	linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
	Dave Kleikamp <dave.kleikamp@oracle.com>
Subject: Re: linux-next: manual merge of the vfs tree with the aio-direct tree
Date: Wed, 18 Sep 2013 10:06:30 -0700	[thread overview]
Message-ID: <20130918170630.GA2103@lenny.msi.event> (raw)
In-Reply-To: <20130918020035.GK13318@ZenIV.linux.org.uk>

> As for aio-direct...  Two questions:
> 	* had anybody tried to measure the effect on branch predictor from
> introducing that method vector?  Commit d6afd4c4 ("iov_iter: hide iovec
> details behind ops function pointers")

FWIW, I never did.  I only went that route to begin with because the few
alternatives I tried before that were even more ugly :(.  It's been long
enough that I can't quite remember what I'd tried, though.

- z

  parent reply	other threads:[~2013-09-18 17:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-18  0:56 linux-next: manual merge of the vfs tree with the aio-direct tree Stephen Rothwell
2013-09-18  2:00 ` Al Viro
2013-09-18  3:25   ` Dave Kleikamp
2013-09-18 17:06   ` Zach Brown [this message]
  -- strict thread matches above, loose matches on Subject: below --
2013-09-05  3:02 Stephen Rothwell
2013-09-05  2:54 Stephen Rothwell

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