From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <5032f8591800c63e04a9a8b18c1b63ea@swtch.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Clearing venti arena during install
From: "Russ Cox" <rsc@swtch.com>
Date: Sun, 26 Mar 2006 19:57:25 -0500
In-Reply-To: <ac08f785796f92ca07123b65fd5d4335@collyer.net>
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> In the common (real-life) case, the test of the first word suffices.
> The word-at-a-time scan can be made to run fairly fast, especially if
> you have the option of first putting a non-zero word just after the
> buffer, so that no explicit bounds test is necessary in the loop.

Or temporarily unzeroing the last word in the buffer.

Russ