Jeff,
The drop in memory-usage upon shutting-down the LDM could be because the
operating-system no longer has to service the LDM.
I suggest that you explicitly determine the memory-usage of the LDM by
using the ps(1) utility and adding the the values reported in the SIZE
column. I suspect the total will be way less than the amount of memory
you have.
--Steve
On 10/24/2010 04:06 PM, Jeff Lake - Admin wrote:
> Steve ..
> it sure looks like it ..
> if I shut LDM down memory usage will fall off drastically
> more then what I the queue set for..
> if Linux is doing that, seems kinda inefficient to me ?
>
> Gilbert,
> what does BillyBob know about a real operating system ;}
>
> system loads are below or just flirting with 1, only time the loads
> bounce over 1 is when scour runs
>
>
> -Jeff
>
>
>> On Sun, 24 Oct 2010, Steve Emmerson wrote:
>>
>>> Jeff,
>>>
>>> How do you know the LDM is using the memory?
>>>
>>> On a Linux system, the operating-system will consume as much memory as
>>> it can without interfering with user processes.
>>
>> For the first few years of running Linux, I had wondered the same thing.
>> Look at your load average, for starters. If you're below 1, chances
>> are it's all good. 12 GB of RAM is fine, and you'll never use that
>> much. Bill Gates told me so! ;-)
>>
>> I have found that running 1.2 GB queue out of /dev/shm for my LDM,
>> even with level 2 data coming in, works fine. It is on my NOAAport
>> ingest server, whose load average most of the time is flat out zero.
>> It does jump up to about .50 when NOAAPort is closer to it's current
>> 10 mb/sec max.
>>
>> *******************************************************************************
>>
>> Gilbert Sebenste
>> ********
>> (My opinions only!)
>> ******
>> Staff Meteorologist, Northern Illinois University
>> ****
>> E-mail:
>> sebenste@xxxxxxxxxxxxxxxxxxxxx ***
>> web: http://weather.admin.niu.edu **
>> *******************************************************************************
>>
>>
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