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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Uwe Laverenz <uwe@laverenz.de>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Performance benchmarks pitting FreeBSD against Windows
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>> changed it to 1MB everywhere.
>
> I've found that increasing vfs.read_max increases read performance quite a 
> bit in bonnie++ benchmarks.
>
> sysctl vfs.read_max=32

what exactly this option do?

read_max 32 <what?>

UFS blocks? MAXPHYS blocks?