On Wed, Jan 09, 2013 at 02:18:28AM -0600, Simon Jeons wrote:
> On Wed, 2013-01-09 at 16:09 +0800, Fengguang Wu wrote:
> > Hi Simon,
> >
> > Try run "sync" before doing fadvise, because fadvise won't drop
> > dirty/writeback/mapped pages.
> >
>
> Hi Fengguang,
>
> Thanks for your quick response. But the result is the same in
> attachment.
>
> > Thanks,
> > Fengguang
> >
> > On Wed, Jan 09, 2013 at 02:05:21AM -0600, Simon Jeons wrote:
> > > In attanchment.
> >
> > > root@kernel:~/Documents/mm/tools/linux-ftools# dd if=../../../images/ubuntu-11.04-desktop-i386.iso of=/tmpfs
>
> The pages of ../../../images/ubuntu-11.04-desktop-i386.iso is mapped or
> unmapped?
You may check if anyone is using (hence possibly mapping) it with
lsof | grep ubuntu-11.04-desktop-i386.iso
Thanks,
Fengguang
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