[General] Any linux gurus?

[David]

I had completely forgotten about the overhead of atime and did not know 
the practicality of noatime.  Good catch, Charles.

So I recommend that you use a filesystem on the ssd's that does not use 
journaling, and set the ssd drive directories with (as root) :

format the SSD's with ext2 (fat32 is not recommended for high speed 
usage but may not matter with ssd's and only two files);

then,

[root at machine /root]#*chattr*  -R +A  /dirofSSDtempdata/
(after reformat, of course.)


Caveat: without journaling, ensure you have a good battery backup APS on the system.  You probably already have that for something that runs for WEEKS!

Also, I hope whoever wrote the program made it re=entrant with little loss of time in case the system did crash, for whatever reason.


David M.



Charles Moye wrote:
> and set noatime?
>
>
> On Mon, Dec 16, 2013 at 9:45 AM, David <ainut at knology.net 
> <mailto:ainut at knology.net>> wrote:
>
>     Can't remember if ext4 uses journaling but if it does, you'll get
>     better times if you can turn it off.
>
>
>
>     Stephan Henning wrote:
>>     Wow, nice.
>>
>>     -WD, I've gone in and checked, and at least on the SSD array,
>>     it's ext4.
>>
>>
>>     On Mon, Dec 16, 2013 at 7:01 AM, Matt <brimstone at the.narro.ws
>>     <mailto:brimstone at the.narro.ws>> wrote:
>>
>>         On 12/15/2013 10:37 PM, Arthur wrote:
>>         > What did mailman do?
>>
>>         Arthur,
>>
>>         Mailman's default setting for digests is to send them out
>>         every 30KB.
>>         People don't trim messages like the bad old days; Ethan's
>>         response email
>>         after yours is 35KB alone. I upped the setting to 10MB, which
>>         is Gmail's
>>         inbound limit if I recall correctly.
>>
>>         #matt
>>
>>
>>
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