Jack Steiner wrote: > The range invalidates have a performance advantage for the GRU. TLB > invalidates > on the GRU are relatively slow (usec) and interfere somewhat with the > performance > of other active GRU instructions. Invalidating a large chunk of addresses with > a single GRU TLBINVAL operation is must faster than issuing a stream of single > page TLBINVALs. > > I expect this performance advantage will also apply to other users of mmuops. >
In theory this would apply to kvm as well (coalesce tlb flush IPIs, lookup shadow page table once), but is it really a fast path? What triggers range operations for your use cases? -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
