01621: Poor performance when -mt is used in conjunction with -waitvsync, -triplebuffer, or -syncrefresh

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
01621	Interface	Minor	Always	Mar 25, 2008, 15:04	Apr 13, 2008, 00:15

Tester	Mr_Person	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Fixed	OS	Windows XP/Vista 64-bit
Status [?]	Resolved			Driver
Version	0.124a	Fixed in Version	0.124u2	Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	01621: Poor performance when -mt is used in conjunction with -waitvsync, -triplebuffer, or -syncrefresh
Description	Using these switches together causes MAME to run slowly and/or erratically. Keyboard input stops being accepted after a few seconds, sometimes with the last pressed key "sticking". This is quite similar to an issue that popped up in 0.119u1 when the full screen behavior was changed experimentally, except this time -switchres doesn't work around it.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems

Attached Files

No.00413 Fujix Administrator Mar 25, 2008, 23:34	Doesn't repro for me (C2D, WinXP 32, GeForce7600, LCD). Can you attach your mame.ini and post your hardware setup?
No.00422 Mr_Person Tester Mar 26, 2008, 18:03 edited on: Mar 26, 2008, 18:05	Upon further investigation, it seems that this only happens on games running at a higher refresh rate than the monitor. Seems like whatever is causing 01622 could be responsible for this as well. I usually get rid of my .ini when testing. X2 4200+, WinXPx64, GeForce 7600GT, LCD
No.00636 Mr_Person Tester Apr 12, 2008, 21:30	Working in 0.124u2, seems that it was in fact related to -refreshspeed being broken.
No.00638 Tafoid Administrator Apr 13, 2008, 00:15	Thanks for retesting this. Resolved/Fixed.