A quick and easy performance improvement

[Alex Neuman van der Hans]

Works great for me so far... Don't have on many production servers, but 
most of my low volume and/or testing servers seem to work better with 
bayes in tmpfs.

Richard Lynch wrote:
> What about using tmpfs instead of a ramdisk for bayes's DB?  The 
> problem I have with a ramdisk is that you're giving up real memory for 
> it.  In my case that would be about 1.5GB.  That's a lot to give up.  
> With tmpfs it would be in virtual memory and grow or shrink as needed 
> (using the swap file).  That wouldn't be as good as a ramdisk in term 
> of performance but it would be more flexible.  Has anyone done that?  
> How did it work out?
>
> ~rich
>
> Green, Rodney wrote:
>> Here's a link to a howto on creating a ramdisk...
>>
>> http://www.vanemery.com/Linux/Ramdisk/ramdisk.html
>>
>> Chris Hammond wrote:
>>> Thanks Daniel, it does sound quite simple.  I will look at trying this.
>>>
>>> Thanks
>>> Chris
>>>  
>>>  
>>>>>> "Daniel Maher" <daniel.maher at ubisoft.com> 08/01/06 9:43 AM >>> 
>>>>>>         
>>> Sure, it's actually quite simple.
>>>
>>> I just created a ramdisk in the standard way, and mounted it as
>>> /var/spool/MailScanner/incoming
>>>
>>> I then created a simple cronjob that runs every couple of hours, which
>>> runs sa- learn -- sync, and then copies the
>>> /var/spool/MailScanner/incoming/bayes/* to a directory on a physical
>>> disk.
>>>
>>> I should point out that the contents of /bayes/ is around 500MB to
>>> 600MB on each of the servers in my mail pool, so the more RAM the
>>> better. :)
>>>
>>> -- 
>>>   _
>>>  °v°  Daniel Maher
>>> /(_)\ Administrateur Système Unix
>>>  ^ ^  Unix System Administrator
>>>  
>>> Sentio aliquos togatos contra me conspirare.
>>>  
>>>> ----- Original Message-----
>>>> From: mailscanner- bounces at lists.mailscanner.info
>>>>     
>>> [mailto:mailscanner-
>>>  
>>>> bounces at lists.mailscanner.info] On Behalf Of Chris Hammond
>>>> Sent: August 1, 2006 9:14 AM
>>>> To: MailScanner discussion
>>>> Subject: Re: A quick and easy performance improvement
>>>>
>>>> Daniel, would you share how you setup yours?
>>>>
>>>> Thanks
>>>> Chris
>>>>     
>>>
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>>
>
>