From: noemail@basdxcqvbe.com   
      
   On Tue, 7 Sep 2021 18:39:25 -0500   
   Rod Pemberton  wrote:   
      
   > On Thu, 26 Aug 2021 21:23:00 -0500   
   > Rod Pemberton  wrote:   
   >   
   > > On Tue, 27 Jul 2021 00:03:28 -0500   
   > > Rod Pemberton  wrote:   
   > > > On Mon, 28 Jun 2021 08:12:38 -0500   
   > > > Rod Pemberton  wrote:   
   > > > > On Thu, 17 Jun 2021 12:48:01 -0500   
   > > > > Rod Pemberton  wrote:   
   > > > > > On Thu, 3 Jun 2021 20:23:19 -0500   
   > > > > > Rod Pemberton  wrote:   
   >   
   > > > > > >    
   > > > > > >   
   > > > > > > OMG! Mozilla enabled their broken rendering engine for   
   > > > > > > Firefox 89.0.   
   > > > > > >   
   > > > > > > [snip]   
   > > > > > >   
   > > > > > > E.g., MotionMark1.1 results for my 2009 components computer:   
   > > > > > >   
   > > > > > > 89.0 74+  without Webrender - 100% correctly rendered   
   > > > > > > 89.0 4.33    with Webrender - ~70% correctly rendered   
   > > > > > >   
   > > > > > > 88.0.1 72+  without Webrender - 100% correctly rendered   
   > > > > > > 88.0.1 1.08    with Webrender - ~30% correctly rendered   
   > > > > > >   
   > > > > > >   
   > > > > > > [snip]   
   > > > > >   
   > > > > > Update:   
   > > > > >   
   > > > > > 89.0.1 76.18  without Webrender   
   > > > > > 89.0.1  4.19     with Webrender   
   > > > > >   
   > > > > > AMD RS780 (DRM 2.40.0 / 3.18.16, LLVM 9.0.1)   
   > > > > > 3.0 Mesa 19.2.8   
   > > > > > mesa/r600   
   > > > > >   
   > > > >   
   > > > > Update:   
   > > > >   
   > > > > 89.0.2 71.33  without Webrender   
   > > > > 89.0.2  4.44     with Webrender   
   > > > >   
   > > > >   
   > > > > Complete results:   
   > > > >   
   > > > > FF Webrender     OFF           ON   
   > > > > MotionMark     71.33         4.44   
   > > > > Multiply        1.00 pass    1.00 fail   
   > > > > Canvas Arcs   352.20 pass    1.00 fail   
   > > > > Leaves         69.48 pass   84.13 pass   
   > > > > Paths        1156.07 pass    1.00 fail   
   > > > > Canvas Lines 1117.47 pass    1.00 fail   
   > > > > Focus          18.89 pass   19.80 pass   
   > > > > Images         41.47 pass    2.00 pass   
   > > > > Design         36.51 pass    2.74 pass   
   > > > > Suits          52.83 pass   73.29 pass   
   > > > >   
   > > > > The higher the score, the more accurate and more complete the   
   > > > > rendering appeared (subjective).   
   > > > >   
   > > >   
   > > > Firefox 90.0.2 64-bit Linux   
   > > >   
   > > > (webrender           off     on)   
   > > >   
   > > > MotionMark 1.1     70.81   4.93   
   > > > Multiply            1.00   1.00   
   > > > Canvas Arcs       396.93   3.00   
   > > > Leaves             73.96   9.00   
   > > > Paths            1187.56   2.00   
   > > > Canvas Lines      996.20   1.00   
   > > > Focus              23.74  20.95   
   > > > Images             39.50   2.00   
   > > > Design             27.28   6.40   
   > > > Suits              50.41 119.73   
   > > >   
   > > > Well, they're clearly still having issues with this.  Their   
   > > > "Leaves" test performance completely died, while their "Suits"   
   > > > test performance improved immensely.  They had moderate   
   > > > improvements on other tests.   
   > > >   
   > >   
   > > MotionMark 1.1   71.15     6.84   
   > > Multiply          1.00     1.00   
   > > Canvas Arcs     344.58     1.00   
   > > Leaves           73.29   122.67   
   > > Paths          1367.65     3.00   
   > > Canvas Lines    993.32     1.00   
   > > Focus            21.97    24.50   
   > > Images           37.61     4.00   
   > > Design           30.19     5.56   
   > > Suits            54.57   163.36   
   > >   
   > > They restored and improved their "Leaves" performance for webrender.   
   > > They improved their "Suits" performance. And, "Focus" improved a   
   > > bit. Other tests have slight improvements and slight declines.   
   > > Now, I'm wondering if only "Leaves" and "Suits" are what they're   
   > > focused upon? Or, if "Focus" is also a base requirement, as "Focus"   
   > > test mostly matches hardware performance, but the other two now   
   > > outperform hardware.   
   > >   
   >   
   > Well, it would appear (*) that Firefox 92.0 finally fixed webrender,   
   > at least for Linux!   
   >   
   > (I.e., wolfgang, you probably don't need to do anything now that 92.0   
   > has been released.  But, you can run MotionMark1.1 to check.  Sorry   
   > that I didn't reply sooner, but I've been really busy lately.  Ditto   
   > to stalled conversations with James, Paul, and others.)   
   > https://browserbench.org/MotionMark1.1/   
   >   
   > The visual quality of the rendering with MotionMark for webrender is   
   > now on par with hardware/opengl.  The quality is good enough that it   
   > almost makes me suspect that Firefox might be falling back and using   
   > hardware, somehow, or at least using it.   
   >   
   > The old setting to enable opengl has been disabled, should be deleted   
   > from about:config, and a new equivalent setting with a different name   
   > has been added for Firefox 92.0.   
   >   
   > The old setting that has been disabled and should be deleted from   
   > about:config is:   
   > gfx.webrender.force.disabled   
   >   
   > This new setting that has been added as it's replacement:   
   > gfx.webrender.force-legacy-layers   
   >   
   > To test OpenGL you must change   
   > gfx.webrender.force-legacy-layers   
   > from false to true and restart Firefox.   
   >   
   >                opengl  webrender   
   > MotionMark      78.07   62.98   
   > multiply         1.00    1.00   
   > canvas arcs    377.68  181.02   
   > leaves          94.76  133.57   
   > paths         1378.52  648.23   
   > canvas lines  1169.99  567.70   
   > focus           32.70   26.92   
   > images          42.57   40.46   
   > design          23.79    8.93   
   > suits           56.38  180.25   
   >   
   > Huge improvements for webrender all around, with "leaves" and "suits"   
   > outperforming hardware/opengl.  The "canvas arcs", "paths", and   
   > "canvas lines" have reached 50% of hardware/opengl.  That's   
   > phenomenal if this truly is purely software rendering.  So, it raises   
   > my suspicions as to hardware fallback, but that wouldn't explain   
   > "leaves" and "suits", only the others.   
   >   
   > I also tried toggling   
   > gfx.webrender.reject-software-drivers   
   > from true to false.   
   >   
   >                opengl  webrender   
   > MotionMark      78.10   95.13   
   > multiply         1.00   39.00   
   > canvas arcs    390.34  180.58   
   > leaves          80.76  131.05   
   > paths         1237.11  656.09   
   > canvas lines  1256.80  548.84   
   > focus           29.38   27.33   
   > images          42.57   45.40   
   > design          28.84    8.73   
   > suits           61.19  177.23   
   >   
   > I see a huge improvement in "multiply" for webrender, when   
   > gfx.webrender.reject-software-drivers is set to false.  I've not seen   
   > any "multiply" result over 1.00 previously. ...  Suspicious?   
   > Othwerwise, the numbers are on par with prior tests above.   
   >   
   > (*) FYI, I've been updating and/or recompiling numerous graphics   
   > libraries, video drivers, and math related software packages recently,   
   > to obtain better performance on this machine.  So, I'm not entirely   
   > 100% certain if this fix was exclusively a Firefox fix or something   
   > else, unfortunately.   
   >   
   >   
      
   I was never able to figure out how to enable "opengl" for Firefox 93.   
   They changed the variables or fully disable it.  After testing numerous   
      
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