зеркало из https://github.com/mozilla/gecko-dev.git
da37a0a877
Previously, any time a text run was requested where the number of glyphs to rasterize was < 8, WR would rasterize those glyphs on the main backend thread. However, this pattern (along with skipping glyphs in the text run that are already cached) meant that we will often see frames where almost all of the glyph raster work gets done on the main thread, even when there are a large number of glyphs to rasterize. This patch introduces a batching system. Any time a batch of 8 glyphs for a given font instance are queued, they are dispatched to a worker thread. At the end of the glyph request phase, any pending glyphs are also sent to worker threads, if there is a significant amount of work to do, or done on the main thread if there are only a few glyphs left. During profiling of a number of common pages, this appears to drop the mean and median frame building time by a small amount, but drop the worst case frame building times by significant amounts (often several ms). Differential Revision: https://phabricator.services.mozilla.com/D89692 |
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| angle | ||
| cairo | ||
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| gl | ||
| graphite2 | ||
| harfbuzz | ||
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| thebes | ||
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| wgpu_bindings | ||
| wr | ||
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