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Very slow shader compilation (Galaxy S3 mini)

KakCAT

Hi!

I have a game in Google Play and I'm having problems with (at least) one of the devices, the Galaxy S3 mini with a Mali-400MP.

There's a shader which takes 20 to 30 seconds to be compiled, leading to users thinking that the device just crashed. The shader is this

#ifdef GL_ES precision highp float; precision mediump int; #endif uniform - Pastebin.com  (nothing specially complex, I think)

and the issue with more information is here:

Weird freeze compiling shader on Galaxy S3 Mini · Issue #2496 · mono/MonoGame · GitHub

Any ideas?

Thanks!

p.s. Can I use Mali graphics debugger with 4.1.2? Instructions to install only refer to 4.2+

Parents
  • 0 in reply to Chris Varnsverry

    Hi Chris,

    What method do you recommend to detect if the versions is prior or later than r3p2-01rel3? Do I analize the revision string (what is the format?) or can I use the BUILD_DATE string and assume previous dates are bad and later dates are good? (what is the date for r3p2-01rel3 then?)

    Thanks!

    Kak

Reply
  • 0 in reply to Chris Varnsverry

    Hi Chris,

    What method do you recommend to detect if the versions is prior or later than r3p2-01rel3? Do I analize the revision string (what is the format?) or can I use the BUILD_DATE string and assume previous dates are bad and later dates are good? (what is the date for r3p2-01rel3 then?)

    Thanks!

    Kak

Children
  • +1 Arm Employee Badge in reply to KakCAT

    Hi Kakcat,

    I just checked on my SGS2 (CM10.1, 4.2.2, r3p1-01rel1, built July 2013) and the problem is present there, but unfortunately VENDOR == "ARM", RENDERER == "Mali-400 MP" and VERSION == "OpenGL ES 2.0" so that's not useful for checking version. I guess your only option is to look into programatically searching for the REVISION string in libMali.so. If you can do that, then it matches the format REVISION=Linux-r[0-9]p[0-9]-[0-9]{2}rel[0-9]. I've also passed on that it would be useful for the driver version to be queryable.

    Hope this helps,

    Chris