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| BZNotify | bzflag.org: allejo created branch feature/site-updates (https://github.com/BZFlag-Dev/bzflag.org/compare/4667382a1964^...4dc578c12f90): | 18:06 |
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| BZNotify | feature/site-updates @ bzflag.org: allejo 466738: Add News page + survey post (https://github.com/BZFlag-Dev/bzflag.org/commit/4667382a196404285daa12e7f23d7fc8adef44ae) | 18:06 |
| BZNotify | feature/site-updates @ bzflag.org: allejo 4dc578: Partial work on new Tabs component (https://github.com/BZFlag-Dev/bzflag.org/commit/4dc578c12f905c150c3fc84427495f096bfc70c8) | 18:06 |
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| tupone | a note: I used to have lot of jitter (like 400 msec) while playing. With systemtap I discovered that the cause was the mesa cache on disk :( MESA_SHADER_CACHE_DISABLE=yes src/bzflag/bzflag now run it smooth | 20:04 |
| tupone | Probably my disk is slow | 20:04 |
| tupone | I think the effect should be called stuttering, not jittering | 20:10 |
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| Juest | oh interesting | 20:40 |
| Juest | tupone: hdd or ssd? | 20:40 |
| blast007 | weird you'd get *that* much jitter | 20:46 |
| tupone | HDD | 20:47 |
| blast007 | is that only a problem with your shader branch? | 20:47 |
| tupone | writing on the disk cache sometime block more than it should | 20:48 |
| tupone | also 2.4 | 20:48 |
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| tupone | Normally the first shoot I do stutter | 20:48 |
| tupone | then is quite normal, but sometime I have againg the problem | 20:48 |
| blast007 | that might just be loading a texture or the sound file the first time | 20:49 |
| tupone | Linux/Mesa/Intel Gen 11 | 20:49 |
| tupone | I suppose the problem is worst with the Mesa-24.2.6, because before was not to bad, only at beginning | 20:50 |
| blast007 | I'll have to update my arch system and see if I have issues there. Arch has mesa 24.2.7. | 20:51 |
| tupone | disabling the cache make it very smooth | 20:52 |
| tupone | I spent a couple of late evening to learn how to use systemtap and then happily I fixed | 20:53 |
| blast007 | MESA_SHADER_CACHE_SHOW_STATS=true might be interesting, to see if it outputs anything when running a stock BZFlag client | 20:55 |
| blast007 | "if set to true, keeps hit/miss statistics for the shader cache. These statistics are printed when the app terminates." | 20:55 |
| tupone | blast007: you have HDD or SSD? Maybe with SSD you don't get the problem | 20:55 |
| blast007 | I have SSDs in all of my systems | 20:55 |
| blast007 | I should still have some 80GB SATA hard drives I bought used when I was first using my test systems | 20:56 |
| tupone | Maybe I have to buy an extra SSD. The one that I have is small, and used only for the kernel | 20:56 |
| blast007 | I guess I still have some systems with hard drives in them, but they're not the primary drive and not often used anymore (aside from my NAS) | 20:59 |
| tupone | MESA_SHADER_CACHE_SHOW_STATS is only for shader | 21:01 |
| tupone | I tried and nothing is printed on stock | 21:01 |
| blast007 | makes MESA_SHADER_CACHE_DISABLE=yes improving performance odd then | 21:02 |
| blast007 | you'd think if we're not using shaders that it shouldn't matter if the cache is enabled or not | 21:02 |
| tupone | maybe shader are used when doing GLlist (implicitily ? ) | 21:03 |
| tupone | yes it is odd, But I dont see write to the cache with that env var | 21:05 |
| tupone | MESA_SHADER_CACHE_DISABLE=yes /usr/share/systemtap/examples/io/iotime.stp -c src/bzflag/bzflag | 21:06 |
| tupone | lot of writing from the system, but none in /home/alfredo/.cache/mesa_shader_cache_db/part0/mesa_cache.db | 21:07 |
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