On 2/11/07, Matvejchikov Ilya <[EMAIL PROTECTED]> wrote:
2007/2/9, Aubrey Li <[EMAIL PROTECTED]>:
> On 2/9/07, Matvejchikov Ilya <[EMAIL PROTECTED]> wrote:
> > 2007/2/9, Aubrey Li <[EMAIL PROTECTED]>:
> > > On 2/9/07, Matvejchikov Ilya <[EMAIL PROTECTED]> wrote:
> > > > Good Day!
> > > >
> > > > We use the linux 2.4.32-uc0 on M68360 based board. Would it be safety
> > > > to disable kswapd in this configuration and what who can tell what
> > > > lies beyond.
> > > >
> > > Kswapd is responsible for periodic memory reclaiming. It can't be
disabled.
> > >
> > > -Aubrey
> > >
> >
> > Strange as it may seem, but I don't have any problems with
> > applications (telnetd for ex.)... System memory gets freed after
> > telnet session has quit.
>
> You misunderstood. kswapd startup for periodic memory page reclaiming
> only occurs when the system memory is low.
>
I see your point. But I can't understand in which way any memory
reclaiming can take place in the swapless system.
Certainly it does. There are a few types of memory which can be reclaimed.
For example, page cache, disk buffer, inode cache, slab object, etc.
As I see it if memory has been allocated with kmalloc it can be freed only with
kfree.
There are much of allocation which will get memory from buddy zone directly.
And the main point is that the thing which makes me think about
disabling kswapd is that my system begins working with greater
performance (at least in userspace).
That's Interesting. How did you disable kswapd? what made you think
performance is improved?
-Aubrey
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