Hi! Two thoughts about NANSI being slow in VirtualBox while network drives and printers are used and FDAPM is active: In DOSEMU, you can configure how agressive screen updates should be. So it can try to keep up with screen updates, or it can just occasionally do a window update. DOSEMU also runs DOS in a window in Linux, so it is similar to a VM, but differs in not emulating the CPU. It just emulates keyboard, screen and similar hardware for DOS :-) If you tell DOSEMU to only update the window 10 or 20 times per second, you get a nice user experience at little CPU load.
The second thought is that network printers / drives combined with your other software (NANSI probably is no interesting factor here, but you can try NNANSi, or try other command line options for NANSI first?) and FDAPM might get FDAPM to try to save too much of your CPU load, so you save a lot of energy but get a sluggish, unpleasand user experience. Read the FDAPM documentation for alternative command line options, e.g. the ADV: style ones, to make it more cautious. Note that not loading any FDAPM style software can be another option, but depending on your VM, could lead to permanently high CPU load. You can try to use other software like DOSIDLE or try the FreeDOS kernel (config.sys) IDLEHALT option, which acts a bit like a "FDAPM lite", saving energy mostly when waiting for keyboard input only :-) Sometimes the VM itself also has options to save energy or limit the amount of CPU time available to DOS. In plain real hardware, FDAPM SPEED options can be used to activate ACPI throttle. That freezes your CPU for each N out of 8 time slices (of e.g. 1/32000 sec). While being much less elegant than modern ways to lower the complete CPU clock and voltage, it gives at least SOME way to forcibly limit CPU usage :-) Note that low speeds below 4 can feel jerkish... Regards, Eric ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
