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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Deathsmiles on lr-mame2015 : Any performance tips?

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    mame 2015pi4arcade
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    • dankcushionsD
      dankcushions Global Moderator @AdamBeGood
      last edited by

      @AdamBeGood you could try running it at a lower resolution via runcommand (make sure it is a 60hz mode). you could also see if any core options are available to reduce the sampling frequency: https://github.com/RetroPie/RetroPie-Setup/wiki/RetroArch-Core-Options#setting-core-options (although i would set it for that game, rather than the whole core)

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      • A
        AdamBeGood @dankcushions
        last edited by AdamBeGood

        @dankcushions Already running it at a lower resolution, but I'll double check the 60Hz point.

        I'll have a look at the sampling frequency.

        Thank you - you are so helpful (and tolerant AF, looking at other posts).

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        • B
          barbudreadmon @AdamBeGood
          last edited by

          @AdamBeGood i believe there is a way to downclock the emulated cpu in mame (through mame osd ?), cv1k games might be somehow playable with a mix of that and heavy pi4 cpu overclocking.

          FBNeo developer - github - forum

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            AdamBeGood @barbudreadmon
            last edited by AdamBeGood

            @barbudreadmon When you say osd do you mean the option screen within Mame itself? Accessed by pressing Tab usually, I think that is the case for lr-mame2015 anyway.

            I'll have a look at this tomorrow. Thank you!

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            • A
              AdamBeGood
              last edited by

              IMG_20200619_082131.jpg

              These settings in Latency make things much better. It is playable now!

              DarksaviorD 1 Reply Last reply Reply Quote 0
              • DarksaviorD
                Darksavior @AdamBeGood
                last edited by Darksavior

                @AdamBeGood The pi4 is just too slow. Those settings don't do much. The few times I played it I got around the same fps. I did notice with your settings the audio will mute itself at the lowest frame drops which makes it just as annoying to play. I don't believe hard gpu sync does anything.

                @barbudreadmon There are no mame settings (in retroarch or mame tab menu) to adjust stuff like emulated cpu.

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                • A
                  AdamBeGood @Darksavior
                  last edited by

                  @Darksavior hmmm maybe I am less fussy, but I find it absolutely playable

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                  • B
                    barbudreadmon @Darksavior
                    last edited by

                    @Darksavior said in Deathsmiles on lr-mame2015 : Any performance tips?:

                    There are no mame settings (in retroarch or mame tab menu) to adjust stuff like emulated cpu.

                    Are you sure there is nothing in mame osd called "Slider Controls" ? Something to change cpu clock should be in there

                    FBNeo developer - github - forum

                    DarksaviorD 1 Reply Last reply Reply Quote 0
                    • DarksaviorD
                      Darksavior @barbudreadmon
                      last edited by Darksavior

                      @barbudreadmon There is a section called slider controls, but it's nothing but screen, volume adjustments, and "blitter delay" at 50%. Nothing about cpu clocks unless that's it?

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                      • B
                        barbudreadmon @Darksavior
                        last edited by barbudreadmon

                        @Darksavior after some search, i found the topic talking about that cpu clock feature on cv1k games : https://neo-source.com/index.php?topic=3510.msg27700#msg27700

                        PS : i don't know much beside that since i'm not a mame user myself, but i found some reference on internet about that feature being in "Slider Controls"

                        FBNeo developer - github - forum

                        DarksaviorD 1 Reply Last reply Reply Quote 0
                        • DarksaviorD
                          Darksavior @barbudreadmon
                          last edited by Darksavior

                          @barbudreadmon Good read, unfortunately, mame2015/2016 does not have any cpu underclocking options. I don't know anything of compiling. Maybe it's a feature that needs to be enabled?

                          This guy says that mame2014 has speedhacks? Though that core is dead and gone. He mentions this on his youtube channel:

                          "It is indeed from february 2015, but it only uses the updated cv1000 drivers from 2015, while the speed hacks are from 2014. It was speciffically made for android and cv1000 by some of the russian devs of demul i think. It was never part of the official Retroarch repository. It also slightly violates the mame rules in the audio coding as i understand from Haze (mame dev), but all in all this is the fastest ever made for Cave shmups. Just compare the same game in both this core and the mame2015 core from official Retroarch and you'll see how much smoother this one is."

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                          • B
                            barbudreadmon @Darksavior
                            last edited by

                            @Darksavior well, the youtube video is titled "Retroarch Mame2015 core (cpu 38 %)", the op on fbneo's forum also mentions that the mame2014 core doesn't show the numbers on the underclocking bar while the mame2015 core does, so my guess is that it's clearly possible to downclock cpu on mame2015

                            FBNeo developer - github - forum

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                            • roslofR
                              roslof
                              last edited by roslof

                              Listed in MAME 2015 Slider Menu as "Overclock CPU maincpu". Can lower. In the screenshot, don't let the 56.15 fool you. I had just exited the static screens when I took the shot. Gameplay is about 40-45FPS depending on scene (Pi4B OC 2,000 CPU/ 750 GPU).

                              Using MAME 2015 (0.160 e1362ea)

                              deathsmile_slider_options.png

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                              • A
                                AdamBeGood @roslof
                                last edited by

                                @roslof Fairly sure that option isn't in whichever version I am running...

                                roslofR 1 Reply Last reply Reply Quote 0
                                • roslofR
                                  roslof @AdamBeGood
                                  last edited by roslof

                                  @AdamBeGood my version was installed via RetroPie binary in April after RetroPie 4.6 was released.

                                  Still, the performance boost noted in the video (for Android) isn't as great on the Pi4B. Might not be worth investing much time.

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                                  • B
                                    barbudreadmon
                                    last edited by barbudreadmon

                                    I just tried the game on my odroid n2 with lr-mame2016 (yes, 2016, i don't have 2015 on my setup), the option is there (tab menu > slider controls), and the game runs at full speed with some ~59fps slowdown (i'm not hearing any stutter though) after setting the cpu to 38%. I guess even after overclocking the pi4 to 2Ghz, there might still be a big gap with odroid n2's a73@1.8Ghz cpu

                                    FBNeo developer - github - forum

                                    sirhenrythe5thS A 2 Replies Last reply Reply Quote 0
                                    • sirhenrythe5thS
                                      sirhenrythe5th @barbudreadmon
                                      last edited by

                                      Imo(!): i wait for the Pi5 for this game (and other roms that still are not well playable).

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                                      • A
                                        AdamBeGood @barbudreadmon
                                        last edited by

                                        @barbudreadmon This is so weird. My lr-mame2016 would have been installed after April - in late May I think. I don't have that option in that core either.

                                        pjftP 1 Reply Last reply Reply Quote 0
                                        • DarksaviorD
                                          Darksavior @roslof
                                          last edited by Darksavior

                                          @roslof I don't have that "overclock cpu" option. I tried the prebuilt binary and from source that was built right now.

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                                          • pjftP
                                            pjft
                                            last edited by

                                            This is a topic I can get behind. I haven't tried these settings yet, may do it in the coming days.

                                            I have my Pi overclocked with

                                            over_voltage=6
                                            h264_freq=750
                                            isp_freq=750
                                            v3d_freq=830
                                            hdmi_enable_4kp60=1
                                            arm_freq=2050
                                            

                                            and Deathsmiles is the one that works the "least badly" of the Cave shooters from that batch. It isn't choppy, but the audio does crackle every now and then. It is not in any way full-speed, though, but yes, I'd get around 52-57 fps from memory - need to reconfirm. It will depend on the amount of things on screen - playing Deathsmiles Black Label with... Rosa, I think (?) will just slow down to a crawl.

                                            I will try some of these and may report back if I find anything. I did try reducing the resolution but no luck there.

                                            A 1 Reply Last reply Reply Quote 1
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