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Date:      Fri, 09 Jan 2009 10:14:11 +0000
From:      "chris.scott" <krad@snaffler.net>
To:        Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
Cc:        PstreeM China <pstreem@gmail.com>, Free BSD Questions list <freebsd-questions@freebsd.org>
Subject:   Re: how to use the MFS ?
Message-ID:  <49672373.3020704@snaffler.net>
In-Reply-To: <20090109105458.I8836@wojtek.tensor.gdynia.pl>
References:  <2c66535d0901082253k5b8ff098w73234a1944929929@mail.gmail.com> <20090109105458.I8836@wojtek.tensor.gdynia.pl>

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Wojciech Puchar wrote:
>> hi all:
>>
>>      i want to know ,how to compile better speed during the 
>> installation of
>> Ports , use the memery filesystem(MFS) ..
>>
>>      during make world , mount the md0 to /usr/obj , but what can i 
>> do for
>
> better use tmpfs
>
>> the port ?
>
> rm -rf /usr/ports/
> mkdir /usr/ports
> mount -t tmpfs tmpfs /usr/ports
> portsnap extract
>
> now build
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quicker to do


mv /usr/ports /usr/ports.real
mkdir /usr/ports
mount -t tmpfs tmpfs /usr/ports
mount -t unionfs -o noatime /usr/ports /usr/ports.real


of cause tmpfs can actually start using disk space unlike a md device so 
if you eat up to much ram with the compiles it will slow down



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