Le Mon, 20 Oct 2008 10:55:17 +0100, "Douglas, Jim (Jim)" <jdouglas@xxxxxxxxx> a écrit : > Do you know what the *technical* disadvantages of this approach might > be? I am most concerned about possible impact on interrupt handling. > > For example, I assume the context switching overhead is higher, and > that interrupt latency is more difficult to predict? There was a presentation on UIO in embedded systems at the latest Embedded Linux Conference in April. The presentation includes a small analysis of UIO's overhead with regard to interrupt latency. See http://www.celinux.org/elc08_presentations/uio080417celfelc08.pdf Sincerly, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers and embedded Linux development, consulting, training and support. http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
