On Thu, 22 Feb 2007 10:42:23 -0800 (PST) Christoph Lameter <[EMAIL PROTECTED]> wrote:
> > > G. Slab merging > > > > > > We often have slab caches with similar parameters. SLUB detects those > > > on bootup and merges them into the corresponding general caches. This > > > leads to more effective memory use. > > > > Did you do any tests on what that does to long term memory fragmentation? > > It is against the "object of same type have similar livetime and should > > be clustered together" theory at least. > > I have done no tests in that regard and we would have to assess the impact > that the merging has to overall system behavior. > >From a viewpoint of a crash dump user, this merging will make crash dump investigation very very very difficult. So please avoid this merging if the benefit is nog big. -Kame - 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/
