Slow on Firefox / Linux / RX 550

[metiulekm]

With the mentioned configuration, I unfortunately get less than 1 FPS on the bunnymark even with 1 bunny only.

Some details:

• This happens only on Firefox (131.0, but this also happened on the older versions), I do not get this issue on Chromium.
• I use Plasma on Arch on this PC. I can reproduce this both on X11 and Wayland.
• I can reproduce this with the version from the README, but also when I build the bunnymark myself, both against v0.12.1 and develop versions of Notan.
• My GPU, as mentioned, is RX 550.
• Native version works fine.
• I do not remember having a similar issue with any other browser game framework. Notably the kiss3d example also runs smoothly, even though, if I understand correctly, it also uses GL via glow.

Not really sure how to begin debugging this :) I tried to run some quick profiling and it seems that most of the time is spend inside buffer_data_u8_slice, called here, with a flame graph like this (on release version):

[Nazariglez]

Hi @metiulekm, thanks for the report. Can you test it again using the devleop branch? I just uploaded a "fix" that could help with this.

[metiulekm]

Hi, I have upgraded to RX 7600 XT in the meantime. I still have the old RX 550 lying around somewhere, so I might be able to test this on that card.

I do have some issues on RX 7600 XT, though I am not sure if this is the same issue or a different one, or even if it is a Notan issue in first place. I need to spend some more time on this, but I get no rendering and an exception in the console. This happens in https://nazariglez.github.io/notan-web/examples/draw_bunnymark and also when I build myself against both 0.12 and develop. The message varies, and this is what I get on develop, suggesting some kind of OOM inside create_uniform_buffer:

Uncaught RuntimeError: unreachable executed
    __wbg_finalize_init http://127.0.0.1:8080/with_notan-1393c4ea51d40140.js:1243
    __wbg_init http://127.0.0.1:8080/with_notan-1393c4ea51d40140.js:1297
with_notan-1393c4ea51d40140_bg.wasm:4257722:1
    __rg_oom http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4257722
    __rust_alloc_error_handler http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4263349
    hffd0e1af790a15a0 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4264180
    h5c6ea63f2cac4602 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4257743
    with_notan-edc0f5862f047bf7.wasm.<u8 as alloc::vec::spec_from_elem::SpecFromElem>::from_elem::h34ec55fb67e54876 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:2235839
    h3291355e89bd40f5 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4115249
    h1bc25bb15e113661 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:1617838
    with_notan-edc0f5862f047bf7.wasm.<notan_glow::GlowBackend as notan_graphics::device::DeviceBackend>::create_uniform_buffer::h5edda3b61749ef0c http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:1852089
    h0509cdc4711f16d5 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:1933122
    h8551218ad644dc08 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:2954326
    hf1b9fc3c9af87e46 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:667157
    h62bed17125cce929 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:1250729
    h7dd6b49267244360 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:2630754
    with_notan-edc0f5862f047bf7.wasm.<notan_draw::config::DrawConfig as notan_app::builder::BuildConfig<S,B>>::apply::{{closure}}::h51d8d5b0e5c1db7f http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:2065649
    with_notan-edc0f5862f047bf7.wasm.<alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h27ba1dc42b263685 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:3940462
    h4da9d1b91afad08e http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:1946661
    hf53bd72d0757a415 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:3563851
    h771a96750e539b5a http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:3815064
    with_notan-edc0f5862f047bf7.wasm.<alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5ffbc8ac770e84fe http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:3498046
    hb370c3c15020d119 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:327408
    h73ef11e35b60fc9c http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:3304565
    h6d03a8e416ba5d32 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4169741
    hd0b4f07610dae4ff http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4169687
    h252dfae2d52eaea0 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:3584572
    hca8730f87f82319d http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:3519541
    h29d90f5b5e999fd2 http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:3690659
    main http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4255326
    wasm http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4262817
    wasm http://127.0.0.1:8080/with_notan-1393c4ea51d40140_bg.wasm:4265671
    __wbg_finalize_init http://127.0.0.1:8080/with_notan-1393c4ea51d40140.js:1243
    __wbg_init http://127.0.0.1:8080/with_notan-1393c4ea51d40140.js:1297
    InterpretGeneratorResume self-hosted:1413
    AsyncFunctionNext self-hosted:800

I am a bit short on time (and honestly energy), but I will hopefully be able to both look at this more and check on RX 550 again in the next week?

[metiulekm]

Just tested on RX 550. Sadly with that GPU there is no change between v0.12.1 and develop (aka 2e4bbc7d6b6290d3cbdf203c48ac0614fc675bea), i.e. on Firefox and ESR it runs, but is slower than 1 FPS, and on Chromium it runs with vertical sync speed (i.e. 165 FPS). Thanks for your help anyway :) I will try to debug the 7600 XT crash, it definitely feels related and seems much more debuggable.