usage of swap file

[Wojciech Puchar]

>>> my system sometimes need more memory and although there was 3.90 Gbyte
>>> swap, I saw that run out of memory  when I see with top command.
>>> Why doesn't the machine use swap properly ?
>>
>> it does
>>
>>> What do I have to do ?
>>
>> nothing
>
> Those are the most worthless responses I have ever seen.  Instead of

well. from your description it's just all fine!
i don't know why you say about "running out of memory" at all.

does your programs crash with "out of memory" message?