Michael Tokarev wrote: [] > Apparently that does not quite work. I just re-compiled kvm with > --enable-linux-aio (actually I just installed libaio-dev on debian > and qemu-kvm's configure picked it up automatically), and tried > a guest. But any I/O fails.
It has nothing to do with kvm. It is compat_ioctl32 in the kernel wrt aio calls. Historically I've a 64bit kernel with 32bit userland, and tried 32bit kvm too, and that does not work. But 64bit kvm works just fine with aio, and the performance numbers are indeed better. Thanks! /mjt -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
