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[wasm] Improve handling OOM error #104963

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merged 3 commits into from
Jul 17, 2024
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@mkhamoyan mkhamoyan commented Jul 16, 2024

By this PR in case of OOM error we will show users message to decrease EmccMaximumHeapSize.

Contributes to #84638 and #95971

@mkhamoyan mkhamoyan added the arch-wasm WebAssembly architecture label Jul 16, 2024
@mkhamoyan mkhamoyan self-assigned this Jul 16, 2024
@dotnet-issue-labeler dotnet-issue-labeler bot added the needs-area-label An area label is needed to ensure this gets routed to the appropriate area owners label Jul 16, 2024
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Tagging subscribers to 'arch-wasm': @lewing
See info in area-owners.md if you want to be subscribed.

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/azp run runtime-wasm

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Azure Pipelines successfully started running 1 pipeline(s).

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/azp run runtime-wasm

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Azure Pipelines successfully started running 1 pipeline(s).

@mkhamoyan mkhamoyan marked this pull request as ready for review July 16, 2024 13:05
src/mono/browser/runtime/loader/run.ts Outdated Show resolved Hide resolved
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Failures are not related.

@mkhamoyan mkhamoyan merged commit 66ae90f into dotnet:main Jul 17, 2024
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@mkhamoyan mkhamoyan deleted the add_log_error branch July 17, 2024 14:39
@@ -71,7 +71,7 @@ WebSocket support in NodeJS hosts requires the `ws` npm package.
### Initial Memory Size
By default the .NET runtime will reserve a small amount of memory at startup, and as your application allocates more objects the runtime will attempt to "grow" this memory. This growth operation takes time and could fail if your device's memory is limited, which would result in an application error or "tab crash".

To reduce startup time and increase the odds that your application will work on devices with limited memory, you can set an initial size for the memory allocation, based on an estimate of how much memory your application typically uses. To set an initial memory size, include an MSBuild property like `<EmccInitialHeapSize>16777216</EmccInitialHeapSize>`, where you have changed the number of bytes to an appropriate value for your application. This value must be a multiple of 16384.
To reduce startup time and increase the odds that your application will work on devices with limited memory, you can set an initial size for the memory allocation, based on an estimate of how much memory your application typically uses. To set an initial memory size, include an MSBuild property like `<EmccInitialHeapSize>16777216</EmccInitialHeapSize>`, where you have changed the number of bytes to an appropriate value for your application. This value must be a multiple of 16384. The default value is `2,147,483,648 bytes`, which may be too large and result in the app failing to start, because the browser refuses to grant it.
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We have mixed EmccInitialHeapSize and EmccMaximumHeapSize. ~2GB is default value for EmccMaximumHeapSize, but the docs is talking about EmccInitialHeapSize. Please update it in a follow-up.

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Thanks for noticing, created #105068

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thanks

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5 participants