Hi Vasily, thanks for this nuanced discussion. It helps me lot to understand your situation. For example, I didn't have the binary-blob problem on my radar at all.
> I agree that would be worth L4Linux seen only as a sandbox for Linux > binaries execution. Again, ideologically correct exclude drivers from > L4Linux. But there are some problems. In addition to the noticed above > there is another one. Is is a performance. Now we make some > experiments with L4linux as gateway with two dedicated NIC drivers and > L4Linux. And we see that the performance degradation is around 85% in > contrast with Linux. That is too much, and if it turns that the moving > NIC driver back to L4Linux ( ie if we give acces L4Linux network > driver to HW) can decrease performance degradation (security > architecture allows to do it), we will use this approach. I suspect that the poor networking performance stems from the dde_ipxe networking driver, not L4Linux. I would definitely recommend to benchmark the dde_ipxe networking driver individually without L4Linux. E.g., by adding some code to the driver that transmits a predefined network packet and measure the throughput achieved. Another test would be to connect two L4Linux instances via nic_bridge and perform the benchmark between both instances. If the communication over the virtual network performs well, we can rule out L4Linux and the 'Nic_session' interface from being the problem. > And oddly enough, the applications for the ARM easier develop from > scratch and not use L4Linux for binaries execution. While software for > network equipment, based on x86, increasingly require re-using. > We have not looked NOVA and Vancouver yet. If we can not solve > performance problems with L4Linux we will "taste" them. Please let us know how you like the taste once you try it. ;-) Norman -- Dr.-Ing. Norman Feske Genode Labs http://www.genode-labs.com · http://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar _______________________________________________ Genode-main mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/genode-main
