| commit | 36fbbde3a5a0e570ba55ea1e7d4dc3b26b135a20 | [log] [tgz] |
|---|---|---|
| author | ulfjack <ulfjack@google.com> | Thu Aug 02 05:16:00 2018 -0700 |
| committer | Copybara-Service <copybara-piper@google.com> | Thu Aug 02 05:17:26 2018 -0700 |
| tree | 2cd4b100b7711339243d33046c4099007177e7fa | |
| parent | 13ebd67cf8ea756a0e82eaa03f0f4a9581ccf9be [diff] |
Add a flag to evaluate the top level transitions in Skyframe This adds a new PrepareAnalysisPhaseFunction, which started out as a copy of some existing code from SkyframeExecutor, BuildView, AnalysisPhaseRunner, AnalysisUtils, and ConfigurationResolver, which was then modified to work inside Skyframe. Most of our tests already work with the new code, except for some of the tests related to configuration trimming in combination with dependency cycles. The reason for this is that we can only recover from dependency cycles at the end of a Skyframe invocation, but never inside a Skyframe invocation. The new code therefore cannot return partial results like the old code. This seems to make null builds a bit faster. In my testing, I saw null build times for a single test target go from ~50ms to ~40ms. This is probably due to slightly better caching - it seems that computing the configuration transitions and top-level targets is non-negligible, even if there's only a single top-level configuration for a single top-level target. This might be an even bigger win if there are a lot of top-level targets and configurations. PiperOrigin-RevId: 207083192
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