On Fri, Feb 05, 2010 at 07:16:51AM +0000, Michael van Elst wrote: > >If NMBCLUSTERS is set, it is placing another limit. i386 and ARM get an > >additional limit of 64MB in clusters, due to the small KVA size. > > 64MB is still larger than before, isn't it?
Yes, it is. For i386 it amounts to 1/8 of the KVA, which is IMO acceptable. > >Third, it uses 1/16 of the physical memory in clusters or 1024 as > >default value. If NMBCLUSTERS is set, it is used directly. The default > >value should be as large as the old default for most sane systems. > > What are the insane systems? With the default cluster size of 2KB and GATEWAY: systems with less than 64MB RAM for the more modernish architectures (1024/2048 as default value). Insane also for systems that raised the value above 1/4 of the physical memory. Joerg
