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 netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
