Emulator Issues #8943
closed
Silent hill shatered memories goes very slow
0%
Description
Playing silent hill shattered memories, with any config, default or custom, the games goes below 20fps in many parts.
Game id: R5WEA4 (US version)
My specs:
W7 ultimate x64
I7 4790k
8 GB DDR3
GTX 970 4GB
Updated by JMC4789 about 9 years ago
- Status changed from New to Questionable
Yeah, it does, I've confirmed this myself. Unfortunately for performance issues to be valid we require some amount of debugging/information into the problem.
As far as I can tell, it's something to do with the lighting in the game, but that's not enough to call this a valid issue.
I'll leave this open in hopes that someone else can narrow it down, unless there's a duplicate issue somewhere.
Updated by JosJuice about 9 years ago
- Relates to usability changed from Yes to No
Updated by JMC4789 about 9 years ago
- Status changed from Questionable to Accepted
I actually investigated this; it is abnormally slow in fifologs. I guess I'll accept this so I don't forget about it until later.
Updated by Autoran1 almost 9 years ago
Noticed that issue is still here in current master:
In certain moments of the game framerate drops to 40-45, but if press TAB it goes above 80-90 and than back to 40-45
Enablig Virtual XFB helps to get normal 60 framelimit with nice and smooth gameplay
i believe it should be added to ini file
Updated by Anonymous almost 9 years ago
Autoran1 wrote:
Noticed that issue is still here in current master:
In certain moments of the game framerate drops to 40-45, but if press TAB it goes above 80-90 and than back to 40-45
Enablig Virtual XFB helps to get normal 60 framelimit with nice and smooth gameplay
i believe it should be added to ini file
I've tried all the combinations of XFB, virtual+real, and opengl,dx11 and dx12 and the games performance was still terrible.
I've got a evga980 ti classiifed, and 5930k @ 4.3ghz
Updated by Anonymous over 8 years ago
Is there any guide on profiling dolphin to see whats taking the most time during these chunks of lag?
Updated by JMC4789 over 8 years ago
We found out the issue.
From Stenzek: "so it's doing 8 texture cache lookups per draw, and looking at my naive profile results that's where it's spending most of its time."
Definitely a valid issue, the only solution is reworking how the texture cache works, or implementing faulting.
Updated by JosJuice over 8 years ago
- Status changed from Accepted to Fix pending
Updated by JMC4789 over 8 years ago
- Status changed from Fix pending to Fixed
Turns out there was another, much bigger bottleneck. Fixed in 4.0-389 -> https://dolphin-emu.org/download/dev/0fecd2f6b0decb00f6d0caba72249d16ab43c8c2/
The game is still slow, just not neckbreakingly slow.