Memory Leak? (repost)

[Wade Chandler]

Yang Xiao wrote:

> 
> -----Original Message-----
> From: Jeff Vian [mailto:jvian10 at charter.net] 
> Sent: Wednesday, May 05, 2004 8:30 PM
> To: For users of Fedora Core releases
> Subject: Re: Memory Leak? (repost)
> 
> 
> 
> Yang Xiao wrote:
> 
> 
>>
>>
>>
>>-----Original Message-----
>>From: Yang Xiao [mailto:yxiao at ohpp.com] 
>>Sent: Wednesday, May 05, 2004 3:08 PM
>>To: For users of Fedora Core releases
>>Subject: (no subject)
>>
>>
>>
>>Hi list,
>>
>>I'm running Fedora Core 1 with 512 MB RAM and 1 Ghz CPU. 
>>
>>I noticed that even without any apps running, the machine seems to be using
>>a lot of RAM and I can't figure out what and why.
>>
>>Here's the top output
>>
>> 
>>
> 
> <snip>
> 
>>I suppose cached/buffered memory are "free" because free gives the
> 
> following
> 
>>output
>>
>>
>>
>>           total       used       free     shared    buffers     cached
>>Mem:           501        344        157          0        103        110
>>-/+ buffers/cache:        130        371
>>Swap:         1019          0       1019
>>
>>but still, what's using 130 MB of RAM ?
>> 
>>
> 
> You have a lightly loaded machine.  No swap is being used at all and 
> 100.0% isle cpu.   Buffers/cache are used to optimize the system and 
> linux will use ALL available memory before it uses swap. You still have 
> 157MB ram unused.
> 
> Here is the output of free on my system
> $ free
>                          total       used       free     shared    
> buffers     cached
> Mem:        513852     502644      11208          0     181972     183320
> -/+ buffers/cache:     137352     376500
> Swap:      1028152      91080     937072
> 
> I am running a lot of services and the system works well.
> Don't worry about the amount of memory being used unless it becomes a 
> problem and the systrem noticeably slows down.
> 
> BTW, mine also is running at 100% cpu usage constantly
> 
> 
> 
> Thanks for the reply, so I take this "Free" memory business can't be taken
> literally on linux unless you see heavy swapping?
> 
> Yang
> 
> 
to see what processes are using what simply run top
then type an M (capital = SHIFT-M) to sort by the memory usages.   The 
field you want to be looking at for the process memory is RSS which is 
the total amount of physical memory used by the task.  since you are 
sorted by memory the usage will be ordered by that field (RSS) decending.

that should show you exactly what you want in top

Wade

-- 
Wade Chandler
Red-e Set Grow, LLC
Phone: 336-777-0075 x1705
Email: wchandler at redesetgrow.com
www.redesetgrow.com