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Mercenaries DOS Framerate Issues

Posted: Sat Jan 24, 2015 7:40 pm
by MensloWolf
I've been playing MW2 Mercs thru DOSbox a whole lot recently, however I am never really satisfied with the framerate. I am always getting around 15-20 fps , but i want at least around 50-60 fps. I am currently using Win 8.1. Here are my DOSBox config details (Edited to remove unnecessary text):

# This is the configuration file for DOSBox 0.74. (Please use the latest version of DOSBox)

[sdl]

fullscreen=false
fulldouble=false
fullresolution=original
windowresolution=original
output=surface
autolock=true
sensitivity=100
waitonerror=true
priority=higher,normal
mapperfile=mapper-0.74.map
usescancodes=true

[dosbox]

language=
machine=vga
captures=capture
memsize=16

[render]

frameskip=0
aspect=false
scaler=normal2x

[cpu]

core=auto
cputype=auto
cycles=auto
cycleup=10
cycledown=20

[mixer]

nosound=false
rate=44100
blocksize=1024
prebuffer=20

[midi]

mpu401=intelligent
mididevice=default
midiconfig=

[sblaster]

sbtype=sb16
sbbase=220
irq=7
dma=1
hdma=5
sbmixer=true
oplmode=auto
oplemu=default
oplrate=44100

[gus]

gus=false
gusrate=44100
gusbase=240
gusirq=5
gusdma=3
ultradir=C:\ULTRASND

[speaker]

pcspeaker=true
pcrate=44100
tandy=auto
tandyrate=44100
disney=true

[joystick]

joysticktype=auto
timed=true
autofire=false
swap34=false
buttonwrap=false

[serial]

serial1=dummy
serial2=dummy
serial3=disabled
serial4=disabled

[dos]

xms=true
ems=true
umb=true
keyboardlayout=auto

[ipx]

ipx=false

[autoexec]
mount c c:\games
c:
cd mechwa~1
cd mechwa~1
imgmount d c:\games\mechwa~1\mechwa~1\mercenaries_doswin.cue -t iso
cd mercs

Help please!

Re: Mercenaries DOS Framerate Issues

Posted: Sun Jan 25, 2015 1:42 pm
by Sir MMPD Radick
mercs generally runs slower than mech2 would because it requires more processing.. you might have to just use frameskip if you want to have it seem faster unfortunately there are not a whole lot of other things you can tweak.

My best suggestion would be to use Taewoon's svn version of dosbox as it usually has more speed tweaks and more options. If you do that you could try direct x or Open GL which could help with speed considerably over surface rendering.

Re: Mercenaries DOS Framerate Issues

Posted: Sun Jan 25, 2015 3:12 pm
by MensloWolf
Thanks for the Info Sir Radick!

Re: Mercenaries DOS Framerate Issues

Posted: Mon Jan 26, 2015 3:58 pm
by Striker
The thing about dosbox is that it that it tends to limit your CPU output to make older games play acceptably. I distinctly remember being able to run MW2: Mercs on my Pentium 3 700 mhz years back with silky smooth graphics... but today, for some reason, on my Windows 8.1 modern laptop, I do get the occasional framerate drop that makes me feel as though I'm playing on my Pentium I 133mhz again.

One thing you can try is pressing Control F12 a few times to see if it smooths things out, as that is supposed to increase CPU speed in doxbox I think.

Another thing you can do is edit your gamekey.map file, and add the following line:

ENHANCED_VISION w

Basically, the above is a walkaround. If your game slows down, pushing W will turn everything into wireframe kind of like the enhanced imaging feature in 31st century, and will completely smooth things out.

Re: Mercenaries DOS Framerate Issues

Posted: Tue Jan 27, 2015 2:26 pm
by burningwreckage00
Things that worked for me when playing mercs in dosbox a long time ago would be to lower the resolution, disable object textures, and/or disable terrain textures. Too bad dosbox doesn't have a 64bit version, since the devs said it was slower than the 32bit versions.

Re: Mercenaries DOS Framerate Issues

Posted: Mon Oct 12, 2015 4:39 pm
by Havokq3
In the game's configuration file, change the line

Code: Select all

core=auto
to

Code: Select all

core=dynamic
. This tells Dosbox that it is a cpu heavy program, and to allocate more processor power to it.