[Flight] use microtask for scheduling during prerenders #30768
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facebook-github-bot
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…erendering Similar to facebook#30768 we want to schedule work during prerendering in microtasks both for the root task and pings. We continue to schedule flushes as Tasks to allow as much work to be batched up as possible.
sebmarkbage
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Aug 21, 2024
In facebook#29491 I updated the work scheduler for Flight to use microtasks to perform work when something pings. This is useful but it does have some downsides in terms of our ability to do task prioritization. Additionally the initial work is not instantiated using a microtask which is inconsistent with how pings work. In this change I update the scheduling logic to use microtasks consistently for prerenders and use regular tasks for renders both for the initial work and pings.
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gnoff
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…erendering Similar to facebook#30768 we want to schedule work during prerendering in microtasks both for the root task and pings. We continue to schedule flushes as Tasks to allow as much work to be batched up as possible.
eps1lon
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**breaking change for canary users: Bumps peer dependency of React from `19.0.0-rc-1eaccd82-20240816` to `19.0.0-rc-eb3ad065-20240822`** No changes required in Next.js it seems. [diff facebook/react@1eaccd82...eb3ad065](facebook/react@1eaccd8...eb3ad06) <details> <summary>React upstream changes</summary> - facebook/react#30761 - facebook/react#30779 - facebook/react#30775 - facebook/react#30770 - facebook/react#30756 - facebook/react#30755 - facebook/react#30768 - facebook/react#30760 - facebook/react#30732 - facebook/react#30757 - facebook/react#30750 - facebook/react#30751 - facebook/react#30753 - facebook/react#30740 - facebook/react#30748 - facebook/react#30746 - facebook/react#30747 - facebook/react#30731 - facebook/react#30725 - facebook/react#30741 - facebook/react#30730 - facebook/react#30726 - facebook/react#30717 - facebook/react#30729 - facebook/react#30721 - facebook/react#30720 - facebook/react#30705 </details>
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In #29491 I updated the work scheduler for Flight to use microtasks to perform work when something pings. This is useful but it does have some downsides in terms of our ability to do task prioritization. Additionally the initial work is not instantiated using a microtask which is inconsistent with how pings work.
In this change I update the scheduling logic to use microtasks consistently for prerenders and use regular tasks for renders both for the initial work and pings.