Re: [STACK] >3k call path in reiserfs

[Hans Reiser]

Chris Mason wrote:

> On Wed, 2004-06-09 at 13:06, Hans Reiser wrote:
>
>  
>
> > > No such luck, the real offender is having tree balance structs on the
> > > stack.  We need to switch to kmalloc for those, which will be mean some
> > > extra work to make sure we don't schedule at the wrong time.
> > >
> > > In other words, not the trivial patch I was hoping for, but I'm cooking
> > > one up.
> > >      
>
>  
>
> > Can you give me some background on whether this is causing real problems 
> > for real users?
> >    
>
> Especially with the 4k stack option enabled, it will cause real problems
> for real users.  A better change would be to cut down on the size of the
> tree balance struct, but that would be more invasive.  For starters we
> might be able to switch from ints to shorts for some of the arrays.
>
> -chris
>
>
>
>
>  
Can you tell me about the "4k stack option"?
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