Harddisk slowdown under PC-98 emulation

MuYing-wSakura commented 2 years ago

Code of Conduct & Contributing Guidelines

[X] I agree to follow the code of conduct and the contributing guidelines.

Have you checked that no other similar bug report(s) already exists?

[X] I have searched and didn't find any similar issues.

What operating system(s) this bug have occurred on?

Windows 10 21H1

What version(s) of DOSBox-X have this bug?

0.83.21 SDL2 64-bit

Describe the bug

As the title said. Harddisk speed under PC-98 mode is slower compare to older versions. For example,loading a song on FMDSP previously requires zero loading time,but now you'll have to wait around 1 sec to play.So did many games which it's music and graphics does not match(Touhou Kaikidan will freeze on the menu for about 10 secs before you can select options)

Expected behavior

I have no idea. It could be my computer sxxks(but this problem does not appear under neither DOS nor DOS/V mode)

Steps to reproduce the behaviour

Run any game/program under PC-98 emulation mode

Used configuration

[dosbox]
machine=pc98
memsize=128

[pc98]
pc-98 anex86 font=FREECG98.BMP

[cpu]
core=dynamic
cycles=15000

[log]
logfile=/log/p98.txt

[autoexec]
@echo off
mount a c:/dos/pc98
imgmount b c:/dosbox-x/jp.hdi
a:

Emulator log

No response

Additional context

Just a small problem that have no relationship with the content Why there is an option for retrowave even under the PC-98 mode????

rderooy commented 2 years ago

Try to set:

[dos]
hard drive data rate limit=0
floppy drive data rate limit=0

maron2000 commented 2 years ago

I tried Touhou Kaikidan but don't see any significant freeze or lag between graphics and sound.

hard drive data rate limit=-1 (default?)
core=dynamic
cycles=15000

Tried using 0.83.21 x64 SDL2 release, Windows 8.1

MuYing-wSakura commented 2 years ago

Try to set:

[dos]
hard drive data rate limit=0
floppy drive data rate limit=0

just still like that

joncampbell123 / dosbox-x