On Wed, 16 Aug 2006 20:58:28 -0700
Daniel Phillips <[email protected]> wrote:
> Andrew Morton wrote:
> > Peter Zijlstra <[email protected]> wrote:
> >>Testcase:
> >>
> >>Mount an NBD device as sole swap device and mmap > physical RAM, then
> >>loop through touching pages only once.
> >
> > Fix: don't try to swap over the network. Yes, there may be some scenarios
> > where people have no local storage, but it's reasonable to expect anyone
> > who is using Linux as an "enterprise storage platform" to stick a local
> > disk on the thing for swap.
> >
> > That leaves MAP_SHARED, but mm-tracking-shared-dirty-pages.patch will fix
> > that, will it not?
>
> Hi Andrew,
>
> What happened to the case where we just fill memory full of dirty file
> pages backed by a remote disk?
>
Processes which are dirtying those pages throttle at
/proc/sys/vm/dirty_ratio% of memory dirty. So it is not possible to "fill"
memory with dirty pages. If the amount of physical memory which is dirty
exceeds 40%: bug.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
