DOS ain't dead

FAT image creation (Emulation)

posted by Rugxulo , Usono, 18.02.2020, 21:13

> My Lenovo desktop (Core i5, dual core, quasi four with HTT) from 2011 has
> Nehalem Westmere (tail end of gen 1) with VT-X and nested page tables
> (unrestricted guest mode, unreal/big real, whatever). Trying to emulate
> anything on my 2009 Dell (Penryn?) dual-core laptop was like pulling teeth.
> (I vaguely recall shortening build time for p7zip under QEMU/FreeDOS from
> 11 hours to 5 just by avoiding LFNs.

I don't remember exactly. Anyways, on this Lenovo 3.2 Ghz desktop (Win7, 64-bit), it only takes 8 minutes to rebuild on VBox 6.1.2 but 8 + 1/2 hours with QEMU 4.2.0 (no VT-X support, so I left it overnight).

Complete thread:

• Datalight ROM-DOS floppy image creation - rr, 02.02.2020, 16:44
  • Datalight ROM-DOS floppy image creation - Rugxulo, 04.02.2020, 05:07
    • Datalight ROM-DOS floppy image creation - rr, 05.02.2020, 15:59
      • FAT image creation - Rugxulo, 08.02.2020, 11:21
        • FAT image creation - marcov, 08.02.2020, 14:54
          • FAT image creation - Rugxulo, 16.02.2020, 18:36
            • FAT image creation - marcov, 17.02.2020, 10:21
              • FAT image creation - Rugxulo, 18.02.2020, 03:39
                • FAT image creation - Rugxulo, 18.02.2020, 21:13
                  • VBox vs. QEMU without VT-X - Rugxulo, 19.02.2020, 10:56
                    • cross-compilation versus emulated (native) compilation - Rugxulo, 04.03.2020, 03:07
                      • cross-compilation versus emulated (native) compilation - Rugxulo, 04.03.2020, 23:11
                • FAT image creation - marcov, 19.02.2020, 10:37
  • Datalight ROM-DOS floppy image creation - rr, 07.12.2020, 23:01
    • Datalight ROM-DOS floppy image creation - ecm, 08.12.2020, 14:06
    • Datalight ROM-DOS floppy image creation - ecm, 08.12.2020, 16:29
      • Datalight ROM-DOS floppy image creation - rr, 08.12.2020, 22:20
        • Datalight ROM-DOS floppy image creation - ecm, 09.12.2020, 10:49
    • Diskette image creation batch files - ecm, 15.12.2020, 22:38
      • Diskette image creation batch files - ecm, 15.12.2020, 22:58
        • Diskette image creation batch files - ecm, 19.12.2020, 18:21