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Operating Systems Linux Red Hat Memory leak
# 15  
Old 05-30-2011
Weird. Your system is 100% idle. That should be a load average of 0, not 1...

I don't suppose you rebooted your system or restarted any services? Is the problem still happening?
# 16  
Old 05-30-2011
i am not rebooted my system or services.
if i use command "sync ; echo 3 > /proc/sys/vm/drop_cache" then it will show the full memory. after 2, 3 hour it will again use.
# 17  
Old 05-30-2011
Quote:
Originally Posted by reply.ravi
i am not rebooted my system or services.
Is the problem continuing to happen?
Quote:
if i use command "sync ; echo 3 > /proc/sys/vm/drop_cache" then it will show the full memory. after 2, 3 hour it will again use.
Quote:
Originally Posted by rrstone
Linux uses every byte of memory available for buffers and caches . 95% usage is good , actually .
Quote:
Originally Posted by rrstone
6GB of total 8GB used in cache . Looks memory is not a problem here .
Quote:
Originally Posted by Corona688
This is the usual "oh my god linux uses free memory for cache" freakout. Cached memory counts as free memory.
Quote:
Originally Posted by Corona688
Cache is still "free" memory
Quote:
Originally Posted by Corona688
Cache is cache. Whenever linux uses the disk it stuffs disk contents into memory in case it needs them again. It gives them up as easily as free memory.
Quote:
Originally Posted by Corona688
We've already been over this. You just had the usual "oh my god linux uses free memory as cache" newbie freakout. Lots of memory being cached is completely normal, even expected behavior. If none of your other servers have any memory used as cache, they are the ones that have something wrong with them. Cache is good. Cache makes your system faster. Cache is also still "free" memory that your server will give up and hand over to programs should they ask for it.
Quote:
Originally Posted by Corona688
This problem is completely unrelated to memory. It has 6 gigabytes of free memory. The memory's fine, or was until you started messing with it.
You are NOT running out of memory already! The high cache isn't causing the problem! Stop messing with your VM modes!
Last edited by Scott; 05-31-2011 at 04:02 PM..
# 18  
Old 05-30-2011
so sir,
where is the problem ? is that everything is fine ?
# 19  
Old 05-30-2011
I'm not saying everything is fine. I'm saying that whatever it is, it's not memory. Something may be causing a lot of disk access, which may create a lot of cache entries, but that's a symptom and not the cause; cache doesn't actually hurt you.

I've asked several times now. What exactly is your server serving?

The high load average is odd, especially when there's no obvious reason for it. Keep checking top once in a while, see if anything appears.
# 20  
Old 05-30-2011
it is http server, but currently it is only stand alone server...
# 21  
Old 05-30-2011
24.5.*Performance Tuning

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---------- Post updated at 08:45 PM ---------- Previous update was at 08:37 PM ----------

1.83.*httpd
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