Hi All,
For a while I was thinking I have a memory leak some where in my system.
I was typing "free" command and observing the free memory was decreasing
gradualy.
I start playing around with the Virtual Memory parameters.
I increased one of the Virtual Memory parameters' value,
"min_free_kbytes". Then I typed "free", all the sudden my system had all
the free memory that I thought it leaked before.
I start reading about the concept of this parameters, here is the
definition of this parameters I found out:
"The min_free_kbytes parameter specifies the size of the memory pool
that can be used for urgent allocations such as those initiated by the
interrupt handler. On larger systems, this parameter impacts the ratio
of memory available to interrupt-time as opposed to runtime allocations.
On smaller memory systems, the parameter is kept small to avoid
allocation failures. The general consensus is that the low watermark
parameter is used to determine when to reject user space allocations and
to initiate page replacement scenarios."
I do not understand from above definition why by increasing the
"min_free_kbytes" I got all the memory back.
Many thanks in advance,
Bizhan
