9d6681cc70
Mostly just formatting fixes with a few grammatical changes.
Two real notable changes:
- Removed references to SkGLCanvas from Tips & FAQ and replaced with
references to `SkDevice` and `SkSurface`.
- Deleted deprecated "Quick Start Guides" folder
Docs-Preview: https://skia.org/?cl=92361
Bug: skia:
Change-Id: Ief790b1c2bae8fe0e39aa8d66c79f80560d18c9e
Reviewed-on: https://skia-review.googlesource.com/92361
Reviewed-by: Heather Miller <hcm@google.com>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
41 lines
1.5 KiB
Markdown
41 lines
1.5 KiB
Markdown
Skia Perf
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=========
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[Skia Perf](https://perf.skia.org) is a Polymer-based web application for
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analyzing and viewing performance metrics produced by Skia's testing
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infrastructure.
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<img src=Perf.png style="margin-left:30px" align="left" width="800"/> <br clear="left">
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Skia tests across a large number of platforms and configurations, and each
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commit to Skia generates 240,000 individual values that are sent to Perf,
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consisting mostly of performance benchmark results, but also including memory
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and coverage data.
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Perf includes tools for analyzing such a large corpus of data, the most
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powerful is [k-means clustering](https://perf.skia.org/t/). This tool groups
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large sets of performance metrics together based on how they change over time,
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and highlights sets of metrics that have performance regressions.
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<img src=Cluster.png style="margin-left:30px" align="left" width="500"/> <br clear="left">
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Calculations
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------------
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Skia Perf has the ability to perform calculations over the test data
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allowing you to build up interesting queries.
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This query displays [the ratio of playback time in ms to the number of ops for desk\_wowwiki.skp](https://perf.skia.org/#1876):
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ratio(
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ave(fill(filter("name=desk_wowwiki.skp&sub_result=min_ms"))),
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ave(fill(filter("name=desk_wowwiki.skp&sub_result=ops")))
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)
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You can also use the data to answer questions like [how many tests were run per commit](https://perf.skia.org/#1878).
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count(filter(""))
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See Skia Perf for the [full list of functions available](https://perf.skia.org/help).
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