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Re: Memory Leak? (repost)

Yang Xiao wrote:

-----Original Message-----
*From:* Yang Xiao [mailto:yxiao 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

total 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 100.0%
Mem: 513292k av, 352408k used, 160884k free, 0k shrd, 106080k buff
139380k active, 83000k inactive
Swap: 1044216k av, 496k used, 1043720k free 112940k cached

You are using 112940k for cache hard drive reads. If you need it linux will just free up the cache memory as the cached data on the hard drive. In the minds of the linux kernel designers unused memory is wasted memory. Remember that reading a file from ramis many times faster than the drive.

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 ?

Try typing M in top.

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