Re: [PATCH] Allocate module.ref array dynamically

[Takashi Iwai]

At Tue, 11 Nov 2008 23:15:50 +0100,
Eric Dumazet wrote:
> 
> Eric Dumazet a écrit :
> > Takashi Iwai a écrit :
> >> Hi,
> >>
> >> we found that the kernel module sizes and memory footprints
> >> grow drastically when NR_CPUS is high.  For example, with
> >> NR_CPUS=4096, SUSE kernel packages weigh over 500MB (even w/o debug
> >> info).
> >>
> >> A part of the reason is the fixed size array in struct module.
> >> The patch below fixes the problem by allocating it dynamically.
> >> With the patch, the size can go down to 20MB.
> >>
> >>
> >> Any comments/suggestions appreciated.
> >>
> > 
> > Many attempts were done on this area on the past.
> 
> Forgot to include a link to previous attempt : http://lkml.org/lkml/2008/5/15/402

Thanks, an interesting thread.


Takashi
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