Hi, everyone. I did a little study on the code of credit scheduler of xen. I am confused on overhear of the migration of VCPU . As I learned, the course of VCPU migration is just to return a "reasonable" VCPU of other peer PCPU to the PCPU which is busy on other VCPU, as well as some judgments before(eg., comparision of VCPU priority, affintiy). In a word, it is just a pointer returned. My question is where is the overhead, or the overhead of executing those load_balance codes is expensive, or will the migration of VCPU introducing the somekind of cache failure? Best regards 2009-11-20 michaeli.zhi _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel