CPU Speed Bug

[darksoldier]

I've noticed as well as others that there is a bug with the CPU Speed. In SnesTYL 0.4.1 Standard if you change the CPU Speed from 333mHz to 222mHz there is actually no difference in the emulator speed. However, if you chang to 266mHz there is a noticable improvement in speed. I don't believe that the 333mHz speed is working which seems to be causing a lot of the slow down. If that gets fixed SnesTYL 0.4.1 Standard should run about the same as SnesTYL 0.3 Standard.

[manias]

it would be even FASTER i think

[charliehustle]

yea it should run faster

[gillberg]

The real question is....what's the cause of the bug?

[yoyofr]

exactly : why ?

mostly an issue with current eloader & pspsdk ...

[manias]

admin said:

exactly : why ?

mostly an issue with current eloader & pspsdk ...

why eloader? your code hasn't changed and eloader hasn't changed, only pspsdk has changed!
-edit- or do you mean.. between eloader n pspsdk

[laxer3a]

If it was a PSPSDK purely issue, why the ME version would be working and the non-ME having issue ?
(same lib, same source for this part, same compiler)

One solution could be to test the non ME version on a 1.5 and see if the clock issue still occurs.

I have a doubt about PSPSDK itself or everyversion of 0.4 should fail.

[manias]

laxer3a said:

If it was a PSPSDK purely issue, why the ME version would be working and the non-ME having issue ?
(same lib, same source for this part, same compiler)

One solution could be to test the non ME version on a 1.5 and see if the clock issue still occurs.

I have a doubt about PSPSDK itself or everyversion of 0.4 should fail.

indeed.. i think there were some ppl that tested this tho and it did happen @ 1.5's too
-edit- found the post, see below -> 1.5 running .41 also has this problem

[manias]

This is why it probably isn't eloader imho: 1.5 running .41 same thing -> 333 not workin probably there either

from the post yoyofr.proboards44.com/index.cgi?board=snes9xtyl&action=display&thread=1147038725&page=6

tested by silverstar:

silverstar said:

Here are some frame counter from 4.01 vs ME on PSP 1.5.
I start the counter 5 seconds after level is loaded, played max. 2-3 minutes every game.

Settings are:

PSP accel. + accur. soft
frameskip 0
333mhz
vsync is off
Sound 44khz

4.01 standard:

Batman Returns: 42-47 (68-72 with Sound and frame limit off)
Contra III: 50-56 (drops to 30 use shield and to 20 bomb)
Earthbound: 51-59
Jimmy Conners: 50-55
R-Type III: 48-60
Secret of Mana: 33-37 (Used PAL Rom, max 50 fps)
Sunset Riders: 43-47 (73-77 with Sound and frame limit off)
Street Fighter 2: 53-58
Super Aleste: 53-58
S. Castlevania VI: 45-53
S. Mario Kart: 25-26 (30 in pure soft mode)
S. Mario World 1: 52-60
S. Mario World 2: 27-33
S. Metroid: 40-53 (In the first room only 34 fps)
S. Star Wars 1: 43-48 (74-76 with Sound and frame limit off)
TMN Turtles: 53-57
Tiny Toons: 48-56
Zelda III: 45-50 (PAL Rom, max. 50 fps)
The most games got good speed, three have massive framedrop with sound off->on (2 are konami games)

And here the ME edition:

Batman Returns: 54-57
Contra III: 60 (drops to 47 use shield an to 30 use bomb)
Earthbound: 60*
Jimmy Conners: 57-59
R-Type III: 60
Secret of Mana: 42-47 (Used PAL Rom, max 50 fps)
Sunset Riders: 60
Street Fighter 2: 60*
Super Aleste: 60*
S. Castlevania VI: 60
S. Mario Kart: 30 (35 in pure soft mode)
S. Mario World 1: 60*
S. Mario World 2: 28-42
S. Metroid: 50-60 (In the first room only 36 fps)
S. Star Wars 1: 57-60
TMN Turtles: 60*
Tiny Toons: 53-60
Zelda III: 50 (PAL Rom, max. 50 fps)
Very good, only the games with special chips are slow.
*without frame limit these got 75-100fps with sound!

Somebody can test the games on firmware 2.0+?

[gillberg]

Laxer3a wanted a direct comparison between 266 mhz and 333 mhz on 1.5 with the user version, I'm pretty sure yoyofr did that already and didn't find any problems. That test from silverstar is a comparison between me and user versions.

[manias]

gillberg said:

Laxer3a wanted a direct comparison between 266 mhz and 333 mhz on 1.5 with the user version, I'm pretty sure yoyofr did that already and didn't find any problems. That test from silverstar is a comparison between me and user versions.

ah yes true. should be easy to test tho.. anyone? i don't have a 1.5

[manias]

well gues it is eloader related.. stranggeeeee

[larry]

ok i just tested this in eloader 0.9.6 and firmware 2.6

With my settings on blackthorne.
sound on and 44khz
video engine psp accel + approx soft
video mode: video 4/3
smoothing: Yes
Speed limit switch---> NO (for testing purposes to see max fps)
framskip 0
vsync: off
render pal as ntsc No
Show fps on

Blackthorne Practice room with 3 guys
222mhz: FPS 37-39 idle, 35 when firing gun
266mhz: FPS 47-50 idle, 45 when firing gun
333mhz: FPS 62-65 idle, 59 when firing gun

Conclusion says this bug only occures in eloader 0.9.7

Edit: So lets figure out what eloader is doing in 0.9.7 thats causing this.
who knows, it could be fixable with a tiny config file update. something that anyone can download or DIY.

[manias]

larry said:

ok i just tested this in eloader 0.9.6

With my settings on blackthorne.
sound on and 44khz
video engine psp accel + approx soft
video mode: video 4/3
smoothing: Yes
Speed limit switch---> NO (for testing purposes to see max fps)
framskip 0
vsync: off
render pal as ntsc No
Show fps on

Blackthorne Practice room with 3 guys
222mhz: FPS 37-39 idle, 35 when firing gun
266mhz: FPS 47-50 idle, 45 when firing gun
333mhz: FPS 62-65 idle, 59 when firing gun

Conclusion says this bug only occures in eloader 0.9.7

Edit: So lets figure out what eloader is doing in 0.9.7 thats causing this.
who knows, it could be fixable with a tiny config file update. something that anyone can download or DIY.

and you have a 2.01+ psp? if so then i'll just downgrade eloader, dont have anyone to wifi against anyway
-edit- ah yeah you have a 2.6.. sweet! downgrade it is!

[larry]

yes thats exactly what i did, was go back to eloader 0.9.6
for now its ok. as i dont use many wifi capable programs, but i have my 0.9.7's eloader folder backed up so i can switch around