On Fri, 2006-08-18 at 09:42 -0700, Andrew Morton wrote: > On Fri, 18 Aug 2006 07:45:48 -0700 > Dave Hansen <[EMAIL PROTECTED]> wrote: > > > On Fri, 2006-08-18 at 12:08 +0400, Andrey Savochkin wrote: > > > > > > A) Have separate memory management for each container, > > > with separate buddy allocator, lru lists, page replacement mechanism. > > > That implies a considerable overhead, and the main challenge there > > > is sharing of pages between these separate memory managers. > > > > Hold on here for just a sec... > > > > It is quite possible to do memory management aimed at one container > > while that container's memory still participates in the main VM. > > > > There is overhead here, as the LRU scanning mechanisms get less > > efficient, but I'd rather pay a penalty at LRU scanning time than divide > > up the VM, or coarsely start failing allocations. > > > > I have this mad idea that you can divide a 128GB machine up into 256 fake > NUMA nodes, then you use each "node" as a 512MB unit of memory allocation. > So that 4.5GB job would be placed within an exclusive cpuset which has nine > "mems" (what are these called?) and voila: the job has a hard 4.5GB limit, > no kernel changes needed. > > Unfortunately this is not testable because numa=fake=256 doesn't come even > vaguely close to working. Am trying to get that fixed.
You may be looking for the NUMA emulation patches posted here: http://marc.theaimsgroup.com/?l=linux-mm&m=112806587501884&w=2 There is a slightly updated x86_64 version here too: http://marc.theaimsgroup.com/?l=linux-mm&m=113161386520342&w=2 / magnus ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ ckrm-tech mailing list https://lists.sourceforge.net/lists/listinfo/ckrm-tech
