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doc,worker: document resourceLimits overrides #43992

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merged 2 commits into from Aug 29, 2022
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doc,worker: document resourceLimits overrides #43992

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doc,worker: document resourceLimits overrides
kvakil Jul 26, 2022
61fc604
fixup! doc,worker: document resourceLimits overrides
kvakil Jul 27, 2022
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19 changes: 12 additions & 7 deletions doc/api/worker_threads.md
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Expand Up @@ -987,14 +987,17 @@ changes:
are passed in `workerData`, a `transferList` is required for those
items or [`ERR_MISSING_MESSAGE_PORT_IN_TRANSFER_LIST`][] is thrown.
See [`port.postMessage()`][] for more information.
* `resourceLimits` {Object} An optional set of resource limits for the new
JS engine instance. Reaching these limits leads to termination of the
`Worker` instance. These limits only affect the JS engine, and no external
data, including no `ArrayBuffer`s. Even if these limits are set, the process
may still abort if it encounters a global out-of-memory situation.
* `maxOldGenerationSizeMb` {number} The maximum size of the main heap in MB.
* `resourceLimits` {Object} An optional set of resource limits for the new JS
engine instance. Reaching these limits leads to termination of the `Worker`
instance. These limits only affect the JS engine, and no external data,
including no `ArrayBuffer`s. Even if these limits are set, the process may
still abort if it encounters a global out-of-memory situation.
* `maxOldGenerationSizeMb` {number} The maximum size of the main heap in
MB. If the command-line argument [`--max-old-space-size`][] is set, it
overrides this setting.
* `maxYoungGenerationSizeMb` {number} The maximum size of a heap space for
recently created objects.
recently created objects. If the command-line argument
[`--max-semi-space-size`][] is set, it overrides this setting.
* `codeRangeSizeMb` {number} The size of a pre-allocated memory range
used for generated code.
* `stackSizeMb` {number} The default maximum stack size for the thread.
Expand Down Expand Up @@ -1332,6 +1335,8 @@ thread spawned will spawn another until the application crashes.
[`'close'` event]: #event-close
[`'exit'` event]: #event-exit
[`'online'` event]: #event-online
[`--max-old-space-size`]: cli.md#--max-old-space-sizesize-in-megabytes
[`--max-semi-space-size`]: cli.md#--max-semi-space-sizesize-in-megabytes
[`ArrayBuffer`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer
[`AsyncResource`]: async_hooks.md#class-asyncresource
[`Buffer.allocUnsafe()`]: buffer.md#static-method-bufferallocunsafesize
Expand Down