GSdx

[Squall-Leonhart]

Originally Posted by Proxy1

I can run the SSE4 version of the plugin with my E6300. It just doesn't utilize my video card properly because I get 100% CPU (in PCSX2) with it. The SSSE3 version puts me at about 50% CPU.

Not only is there no benefit in running the SSE4 version, it actually degrades performance if the CPU doesn't support it. And of course, it will eventually crash when the game executes SSE4 code.

thats how emulation is buddy, it WILL eat up your cpu's performance, the reason the SSE4 version increases it, is because the cpu is doing even more work.

[gabest]

In d3d mode only texture reads use sse4 for palette lookups.

Try to run "rundll32 gsdx.dll,GSBenchmark" (it saves the results to c:\log.txt) and compare the numbers. The columns are host to local, local to host, local to vmem, each pair in MB/s and MPixel/s.

Here is how my e8400 performs. 1024x1024 is so much slower because there the working set is larger than the L2 cache.

[Bobstar]

Originally Posted by gabest

In d3d mode only texture reads use sse4 for palette lookups.

Try to run "rundll32 gsdx.dll,GSBenchmark" (it saves the results to c:\log.txt) and compare the numbers. The columns are host to local, local to host, local to vmem, each pair in MB/s and MPixel/s.

Here is how my e8400 performs. 1024x1024 is so much slower because there the working set is larger than the L2 cache.

Hey gabest I got a E8400 as well overclocked at 3.6ghz stable and thoroughly tested.

My question is why do I only in Ring of Red as far as I can remember get in some cases 99% CPU usage and then the game is between 30-50 fps.

A file is attached, during that picture my cpu is 99% and fps below 60.
Normally it is 2-22% usage at 60 fps smooth sailing but not in Ring of Red in some cases. What's up?

[rainbow]

Originally Posted by Bobstar

Hey gabest I got a E8400 as well overclocked at 3.6ghz stable and thoroughly tested.

My question is why do I only in Ring of Red as far as I can remember get in some cases 99% CPU usage and then the game is between 30-50 fps.

A file is attached, during that picture my cpu is 99% and fps below 60.
Normally it is 2-22% usage at 60 fps smooth sailing but not in Ring of Red in some cases. What's up?

99% + slowdown = GPU bottleneck. Lower ur d3d internal res or bear with slowdown in that moment.

[RPGW1ZaRD]

I wonder if it would be better if it would say GPU instead of CPU, almost everyone that hasn't read about it on the forums thinks it's CPU bottleneck that starts kicking in while it's in fact GPU. Seems more logical to me if it said GPU instead of CPU.

Some games have certain effects that cause heavy GPU usage and a few games have 99% CPU all the time even on a overclocked 8800GT despite using native res such as Deus Ex for example or Xenosaga in DX9 mode.

[NKDietrich]

Out of curiosity, from a technical standpoint why is it that FFX-2 FMVs are so troublesome to emulate at full speed? I'm running an E8400 @ 4.0GHz, a 9800 GTX @ 800/2400 in Vista. It seems to be limited to about 38fps regardless of which plugins/options I use.

[PCXL-Fan]

Originally Posted by rainbow

99% + slowdown = GPU bottleneck. Lower ur d3d internal res or bear with slowdown in that moment.

unless I'm mistake if cpu usage was below 99% usage shouldn't it mean the gpu is bottlenecking, since it would mean the cpu is waiting idly by waiting for the gpu to catch up. At ~99% cpu usage should mean that the cpu is being pushed to its limit and still isn't fast enough to push out 60fps.

[Bobstar]

99% CPU would seem to me as well that the CPU would be the bottleneck.
However the opposite proves true it's my GPU like rainbow said.

I lowered the d3d internal res to as much as 640x640.
And the highest my cpu goes now is 32%.

Thanks so much rainbow you made one of my favorite games playable at 60 fps all of teh time!

[RPGW1ZaRD]

Originally Posted by PCXL-Fan

unless I'm mistake if cpu usage was below 99% usage shouldn't it mean the gpu is bottlenecking, since it would mean the cpu is waiting idly by waiting for the gpu to catch up. At ~99% cpu usage should mean that the cpu is being pushed to its limit and still isn't fast enough to push out 60fps.

Depends if you talk about Task Manager CPU usage or GSdx plugin "cpu usage". If you'd talk about task manager that would be true at least with older builds, but I'm unsure if with these newer ones if it reports 99% cpu anyways even if GPU is bottlenecking.

However Bobstar was talking about "xx% CPU" you see in GSdx titlebar in windowed mode. I usually use this to see if I'm GPU limited or not etc and determine what's a good internal res for this particular game. If 99% CPU then you're GPU bottlenecked, if less than 99% then CPU.

[intellect]

Hi Gabest...

Yesterday I was doing some tests with Jak 3 (PAL, CRC 12804727)

The game doesnt even start with PCSX2 VM. But it runs pretty fine with TLB version (That's probly the reason it show as "intro" on compatibility list).

It runs on decent speed on my rig, and it looks mostly playable (i have played 30+ minutes).

But there are a lot of graphic problems... I attached some screens. As you can see, all the faces are messed up. On the third screenshot, Jak's arm and hair are bugged, and in the lastest one you can see the shadow being drawed wrong (like in Shadow of the Colossus).

I'm using pcsx2 svn 384 (but the problem is exact the same on 0.9.4). I did these screenshots with gsdx 0.1.9 svn 807, but they look almost the same with 0.1.8 or 0.1.7 (except on 0.1.7 both eyes are messed up )

As a final note, the software mode draws some stuff missing on the hardware mode, but the "faces bugs" are still there.

If you want, I can provide you the dumps from all these screenshots

EDIT:

To save us time, here are all the dumps

[ryosaeba]

I want to ask about the Internal resolution.
For example if i use 2048x2048 internal res i notice a reasonable drop in FPS, what caused it?
My CPU or my graphic card?
So i know what to buy in my next upgrades, new CPU or VGA. (more likely VGA i think)
Currently using :
Proc E2140 @3ghz, RAM 2gb DDR750, Vga Geforce 8600gt 256mb.
Thanks.

[Firnis]

ryosaeba
VGA.

[makotech222]

your graphics card buddy.
Yo gabest just wanted to tell you, theres sort of a text bug in most of the Romance of the Three Kingdoms series games (confirmed 7,8,10) The text appears very dark and it extremely hard to read. not 100% if this is graphics plug in though. Anyways, if you need a SS just ask.

[Borisz]

Originally Posted by gabest

Btw, most games hoover around 0.1-0.2 GT/s, there are only a few that come even close to what the gs could handle. For example in SoTC when one colossus dies and there is that "highlander effect", that's the absolute record I've seen.

What about the boss explosions in Gradius V? Treasure has a habit of creating a "slow motion explosion" effect by overloading the hardware with so many effects that it actually drops the fps. they did it in Ikaruga too.
Of course, it could be the EE bottlenecking too, but I'm really wondering.

[rama2]

Thats an interresting question
But I'd say on a fast computer it wont slow down as intended.

[shuffle2]

here is the result of running GSBenchmark with my cpu (see sig) just for kicks ^^
EDIT: SSE2, gsdx svn 808
also, i noticed that it tops out at using about 50% of my cpu :/

[3x3cUt0r]

Originally Posted by shuffle2

here is the result of running GSBenchmark with my cpu (see sig) just for kicks ^^

What build are you using (sse, sse2...), svn version? You should provide enough information to make this useful.

[Firnis]

3x3cUt0r
It's SSE2, because there is no SSE version. And he has AMD cpu, so he can't use SSSE3 or SSE4.

[NexXxus]

all AMD's since the first Athlon 64 supports SSE2.
Socket A Processors like XP/MP and the Socket A ones of Sempron doesn't support SSE2, so they're not really usable for pcsx2.

[Squall-Leonhart]

Gabest, the performance issue on ATI cards may be related to the driver not reporting VRAM properly, Petes PSX plugins suffer the same problem.