Socom 3: U.S. Navy SEALs (NTSC-U) - Slowdown when looking at the sun.

[piau9000]

PCSX2 version: 1.5.0-dev-3212

PCSX2 options: Tried several combinations of round and clamping, and also several gamefixes. No effect.

Plugins used: Default. Happens in both HW and SW mode.

Description of the issue: When looking around, the game works fine and no message appear on the log. But when looking at the sun, the game becomes sluggish and the following message keeps popping up in the log:

sceGsSyncPath: VIF1 does not terminate
<D1_CHCR=10000045:D1_TADR=00121e50:D1_MADR=00121e50:D1_QWC=00000000>
<D2_CHCR=70000045:D2_TADR=00b3daf0:D2_MADR=00b3db10:D2_QWC=00000000>
<VIF1_STAT=00000043:GIF_STAT=00000004>

The VU and GS drops to 0%, but the EE does not change, maintaining the average of 37%. Also, the speed does not change too (100% - 60FPS). My CPU usage drops from 40% to 10%.

How to reproduce the issue: Right at the beginning of the game. Skip all cutscenes and, when you gain control of the character, look at the sun.

Last known version to work: --

PC specifications: CPU: Intel Core I5 4690 - GPU: EVGA GTX 750Ti - OS: Windows 7 64-bit

[ghost]

Do you tried the EE Timing hack and delay VIF1 stalls?

[piau9000]

Yes. But it had no effect.
I must also note that the European PAL version does not have the problem, which is weird.

[lightningterror]

Fixed in #3402

[RedDevilus]

Forgot that i removed the patch for the sun slowdown completely oops, it does improve it overall.
Probably Future PR.

[RedDevilus]

Reminder that this is a workaround for now, needs a proper fix later.