On Fri, 28 Jul 2000, Linus Torvalds wrote:
>
> If glibc _really_ really doesn't like the fact that Linux has a constant
> NGROUPS, then create a stupid configuration file in /etc/sysconf, and have
> some bootup entity recomupte the constants every time. Then, the magic
> sysctl() call ends up being reading that sysconf file, and it allows
> sysadmins etc to even edit it (or, because it is probably better off being
> a binary file, edit the file generator) if they want to artificially
> report other values.
And perhaps that configuration file should be generated during kernel
compile, much like System.map file is.
> Read my lips: if it doesn't change value during the running of the
> machine, it should not be a system call. Getting the maximum amount of
> memory (_SC_PHYS_PAGES) is another example of where asking for a system
> call is _stupid_. Same goes for __SC_PAGESIZE - even if it will change in
> future kernels (possible), it will NOT change dynamically. You can have a
> config file.
I was under impression that the amount of physical memory is already
readable in /proc/meminfo .
Vladimir Dergachev
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