strange behavior creating and deleting files

From: Mpourtounis Dimitris
Date: Fri Sep 24 2004 - 05:16:37 EST


Hi all,

there seems to be a strange behaviour in the way my system creates and
deletes files, as long as memory allocation is concerned.

running a simple script that continuously creates and deletes files on
tmpfs filesystem, a got the following results:

files created free memory on system
------------- ---------------------
0 48180
+6000 47936
+6000 47372
+6000 47372
+6000 47936
+6000 47936
+6000 47936
+6000 47936 (seems stable)
+9000 46976 (what on earth?)
+30000 45084
+80000 45084 (again stable)
+70000 39156 (not again...:( )

and sometime in the morning 25000 MB free RAM, and my system running too
slow

I am sure these are a lot a files and under normal conditions, there
will never be made and deleted so many.

It is that misbehavior of being stable for a long time and then again
allocating memory that concerns me.

I am running linux 2.4.26 on an x86 platform (gcc 3.2.3 uclib 0.9.20)

Simple sh file:
i=0
while [ 1 ] do
echo "dont allocate more memory please" > $i
rm $i
let i=$i+1
done

Any clue???


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