On Mon, Sep 21, 2015 at 03:14:04PM +0200, Marc Marí wrote: > Implement support for booting from a PMEM region compatible with NVDIMM and > NFIT specifications. > > The current implementation is still slow. When running a Linux guest on top of > QEMU in x86: > > Using actual -kernel option: > QEMU startup time: .080 > BIOS startup time: .060 > Kernel setup time: .590 > Total time: .730 > > Using -kernel option and fw_cfg DMA patch: > QEMU startup time: .080 > BIOS startup time: .039 > Kernel setup time: .002 > Total time: .121 > > Using this patch series and adding the vmlinuz as a NVDIMM device: > QEMU startup time: .080 > BIOS startup time: .065 > Kernel setup time: .015 > Total time: .160
Thanks Marc - very interesting! Do you think NVDIMM support will ultimately be faster than DMA or are there other advantages to using NVDIMMs? -Kevin _______________________________________________ SeaBIOS mailing list SeaBIOS@seabios.org http://www.seabios.org/mailman/listinfo/seabios
