Re: LinuxQuestions.org - Community Bulletin

tom arnall wrote:

> i am experiencing memory problems trying to run an application that processes
> a file of about .5GB. So far my results are:
>
> (1) set ulimit as follows:
>
> core file size (blocks, -c) 0
> data seg size (kbytes, -d) unlimited
> file size (blocks, -f) unlimited
> max locked memory (kbytes, -l) 256000
> max memory size (kbytes, -m) 256000
> open files (-n) 1024
> pipe size (512 bytes, -p) 8
> stack size (kbytes, -s) 8192
> cpu time (seconds, -t) unlimited
> max user processes (-u) unlimited
> virtual memory (kbytes, -v) 768000
>
> This gives me 'out of memory' errors.
>
> (2) set 'virtual memory' very high and the application hogs memory and brings
> the rest of the system to almost a halt.

It sounds as if you don't have enough physical memory for the task at
hand. If that is the case, no amount of tweaking parameters will solve
your problem; you'll just have to install more memory.

You don't mention which application you're using or what type of
processing is being performed. Depending upon the task, processing a
file may require memory far in excess of the size of the file.

--
Glynn Clements
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