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Date:      Thu, 5 Feb 2009 11:13:27 +0200
From:      "Yavuz" <maslak@ihlas.net.tr>
To:        "Adam Vande More" <amvandemore@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: is there any way to increase disk performance ?
Message-ID:  <55DE6E126D0C43288ECF48842AB6903D@desktop2002>
References:  <1E37AE87F15C4E34B6EB1002AADEB87A@desktop2002> <4989F825.3020609@gmail.com>

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Ok. I increased vfs.read_max

while I was looking  into this case in google, I see a value of MAXPHYS
in my kernel, there is a value called MAXPHYS=(128*1024) as default.
What should I set this value ?



> Yavuz wrote:
>> I have freebsd7 (amd64 bit)  and sata2 disk 7200 rpm.
>>
>> it's running mail server which has services like pop3,imap,smtp and 
>> webmail on this machine.
>>
>> When I type systat 1 -vmstat on command line, even I rarely see that disk 
>> usage hits 100%.
>> I have no problem as ram and cpu.  they is enough.
>>
>> is there any way to increase disk performance without causing any problem 
>> ?
>>
> sysctl vfs.read_max=32 can help read performance
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