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Re: file-max is only 4096 with 1 GB mem

On Mon, 5 Dec 2005 14:20:34 +0100
Dieter Faulbaum <faulbaum@mail.bessy.de> wrote:

> I have a small problem under Debian etch with a (vanilla) kernel
> on a AMD 64 (32-bit) system with 1GB memory:
> often I see error messages about running out of file handles.
> 'cat /proc/sys/fs/file-max' shows: 4096
> This seems very sparse for 1GB memory.
> Looking at Documentation/proc.txt I found this.
> ...
> The value  in  file-max  denotes  the  maximum number of file handles
> that the Linux kernel will allocate. When you get a lot of error
> messages about running out of file handles, you might want to raise
> this limit. The default value is 10% of  RAM in kilobytes.  To  change
> it, just  write the new number into the file:
> ...
> # echo 8192 > /proc/sys/fs/file-max
> Okay this works, but I don't understand why this value is so small.
> Is anyone else here with such a problem and can explain why this
> value is so small?
> On another computer with etch (but an Intel Pentium 4 CPU) I get
> 89808, which is what I expect from the docu.

Maybe an obvious question, but have you checked to make sure Debian is
recognizing all of your ram properly? I have an AMD Athlon XP 2200+
(32-bit) with 1GB of ram and /proc/sys/fs/file-max shows 102249. 


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