#os2/dos/3ds4
5 messages in this thread
i've rendered under msdos.
some month ago i installed the os2warp on a hpfs-part.
and now i found out…:
if i render the file xxx under dos it needs 53min p/frame.
if i render the same file under os2_warp it is ready in 17min !!!!!!!!!!!
under dos the p90/32mb have to handle 3ds4, only.
under os2 something more – but it still much faster.
why???
wfg -micky also <midroth@ibm.net>
"under dos the p90/32mb have to handle 3ds4, only.
under os2 something more – but it still much faster.
why???"
Wow! I don't know (only have DOS on my machine). I'll pass your message to
QA, and ask them to see if they've heard of this.
Thanks for letting us know; hopefully someone else with your experience will
explain what's happening.
one thing i forgot in the hektic…:)
i have real 32mb on board. the dpmi-switch of the 3ds4-dos-session is 128mb.
if the renderdatas are bigger as your ram (meshdatas, calculating lights,
shadowmaps etc.) and the pen beginns to swap out, the performence-winning
comes…
rule: so long your file is not bigger than your ram…it's look like same.
but if your file is bigger than your ram – you'll win time 'til 1:~4!
…
-micky
"rule: so long your file is not bigger than your ram…it's look like same."
Thanks!
The HPFS (file system) combined with the OS/2 paging system, which uses native
386 page tables, provides a vast improvement for 3DS files that exceed
available RAM during render. A typical improvement is 5-20% depending on the
amount of swap space used, but with the right combination of hardware and RAM
usage, well, you can see for yourself!
— James — Choreo Motion —