Saving Chrome trace reports as HTML files (instead of JSON)

[Carlos Knippschild]

I found out this was possible when I found a document linking to one. The great thing about this is that it eases referring to one from an embedded link: click on it and Chrome opens the trace report directly. It's much better than the JSON workflow: download the file, open new tab, type chrome://tracing, click on "Load", find the saved report, open the file.

Any clues on how to do that?

[Oystein Eftevaag]

Catapult has a trace2html script that'll do this for you.

On Mon, Oct 24, 2016 at 4:25 PM Carlos Knippschild <car...@chromium.org> wrote:

I found out this was possible when I found a document linking to one. The great thing about this is that it eases referring to one from an embedded link: click on it and Chrome opens the trace report directly. It's much better than the JSON workflow: download the file, open new tab, type chrome://tracing, click on "Load", find the saved report, open the file.

Any clues on how to do that?

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[Carlos Knippschild]

Thanks. I updated the tracing how-to page to link to that script (mentioning this here to make sure external linking is allowed).

[Oystein Eftevaag]

Great, thank you! Yeah linking to Catapult should be fine.

[林澔澔]

carlosk於 2016年10月25日星期二 UTC+8上午7時26分11秒寫道：

[Bruce]

That's excellent. I have been wanting that exact capability. As a concrete example, I often generate tracing files from ninja build logs using ninjatracing and the ability to convert from .json to .html makes the workflow smoother. Here's an example run on Windows:

> python c:\src\ninjatracing\ninjatracing out\release\.ninja_log >build_trace.json

> python third_party\catapult\tracing\bin\trace2html build_trace.json

build_trace.html

> build_trace.html

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