Ar Gwe, 2006-08-18 am 12:32 -0700, ysgrifennodd Dave Hansen: > > It ought to be cheap. Given each set of page structs is an array its a > > simple subtract and divide (or with care and people try to pack them > > nicely for cache lines - shift) to get to the parallel accounting array. > > I wish page structs were just a simple array. ;)
Note I very carefully said "each set of" > It will just be a bit more code, but we'll need this for the two other > memory models: sparsemem and discontigmem. For discontig, we'll just > need pointers in the pg_data_ts and, for sparsemem, we'll likely need > another pointer in the 'struct mem_section'. Actually I don't believe this is true in either case. Change the code which allocates the page arrays to allocate (+ sizeof(void *) * pages_in_array on the end of each array when using UBC. The rest then seems to come out naturally. Alan ------------------------------------------------------------------------- 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
