How to Read JavaFX Pulse Log Message

[Matthieu BROUILLARD]

Hi Tai,

I cannot help you interpreting the pulse log but with recent oracle JDK you
can use Java Mission Control & the JavaFX plugin/extension to have a deep
understanding of all pulses and of the different steps within the pulse
(CSS parsing/rendering, layouting, painting, ...)

Regards,

Matthieu

On Wed, Sep 21, 2016 at 12:56 AM, Tai Hu <tai.hu at veroanalytics.com> wrote:

> Hi,
>     Is there any document or tutorial about how to interpret JavaFX Pulse
> log message? I turned on Pulse Logger for my application and see the log
> message as follows,
>
> PULSE: 575 [143ms:20ms]
> T12 (-143 +143ms): Layout Pass
> T12 (0 +0ms): CSS Pass
> T12 (1 +0ms): Layout Pass
> T12 (1 +0ms): Update bounds
> T12 (1 +0ms): Waiting for previous rendering
> T12 (1 +0ms): Copy state to render graph
> T12 (2 +0ms): CSS Pass
> T12 (3 +1ms): Layout Pass
> T12 (4 +0ms): Update bounds
> T12 (5 +0ms): Waiting for previous rendering
> T12 (5 +2ms): Copy state to render graph
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 (8 +5ms): Painting
> T9 (13 +1ms): Presenting
> T9 (14 +0ms): Dirty Opts Computed
> T9 : Slow shape path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 : Slow background path for null
> T9 (14 +5ms): Painting
> T9 (19 +0ms): Presenting
> Counters:
>         Cached region shape image used: 3
>         NGRegion renderBackgroundShape slow path: 1
>         NGRegion renderBackgrounds slow path: 26
>         Nodes rendered: 212
>         Nodes visited during render: 227
>
> There is a lot of "Slow background path for null”. Is that indicating a
> problem? If so, how can I fix it?
>
> Thanks,
>
> Tai