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Re: hole punching performance

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: hole punching performance
From: "Bradley C. Kuszmaul" <kuszmaul@xxxxxxxxx>
Date: Sat, 5 Jan 2013 11:31:19 -0500
Cc: xfs@xxxxxxxxxxx
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In-reply-to: <20130103220717.GI3120@dastard>
References: <CAKSyJXf66H2U-BF-aYnSr2fF24_6LJw6swOx1RhUc_3Eqayaiw@xxxxxxxxxxxxxx> <20130102232706.GD3120@dastard> <CAKSyJXd8wsH3MDOOaqo24M8DSYQjE2S2hF3QcFnEWjYTOo3s4w@xxxxxxxxxxxxxx> <20130103220717.GI3120@dastard>
What are the requirements for alignment of punched holes?    Is 512-byte alignment good enough?  (I'll have 512-byte alignment anyway since I'll be using direct I/O on these files.)

-Bradley

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