LGTM3 On Fri, Nov 7, 2025 at 1:57 AM Philip Jägenstedt <[email protected]> wrote:
> LGTM2 > > The standards positions issues are in a somewhat unusual state, but we've > filed them and the change was done in a WG where everyone participates, so > I don't think we need to follow up more. > > On Thu, Nov 6, 2025 at 6:43 PM Chris Harrelson <[email protected]> > wrote: > >> LGTM1 >> >> On Wed, Nov 5, 2025 at 1:27 PM Chromestatus < >> [email protected]> wrote: >> >>> *Contact emails* >>> [email protected] >>> >>> *Explainer* >>> >>> https://github.com/gpuweb/gpuweb/blob/486577ae07e0fe3c433859499a1b558ee7c5275b/proposals/subgroup-id.md >>> >>> *Specification* >>> https://www.w3.org/TR/WGSL/#language_extension-subgroup_id >>> >>> *Summary* >>> Functionality added to the WebGPU spec after its first shipment in a >>> browser. The `subgroup_id` and `num_subgroups` built-in values are now >>> available when the subgroups extension is enabled. >>> >>> *Blink component* >>> Blink>WebGPU >>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EWebGPU%22> >>> >>> *Web Feature ID* >>> webgpu <https://webstatus.dev/features/webgpu> >>> >>> *Motivation* >>> The `subgroup_id` and `num_subgroups` built-in values are now available >>> when the subgroups extension is enabled. This improves the process of >>> scheduling work across subgroups in WebGPU compute shaders. >>> >>> *Initial public proposal* >>> https://github.com/gpuweb/gpuweb/pull/5416 >>> >>> *TAG review* >>> *No information provided* >>> >>> *TAG review status* >>> Pending >>> >>> *Risks* >>> >>> >>> *Interoperability and Compatibility* >>> This feature has been approved in W3C GPU for the Web WG meetings >>> including participants from Safari and Firefox. Minutes from W3C meeting >>> where the decision to accept the proposal was finalized: >>> https://github.com/gpuweb/gpuweb/wiki/GPU-Web-2025%E2%80%9010%E2%80%9021-WGSL#subgroup-id-uniformity-of-subgroup-id-5368 >>> >>> *Gecko*: No signal ( >>> https://github.com/mozilla/standards-positions/issues/1205#issuecomment-3312534193 >>> ) >>> >>> *WebKit*: Closed Without a Position ( >>> https://github.com/WebKit/standards-positions/issues/294#issuecomment-1877411933 >>> ) >>> >>> *Web developers*: No signals >>> >>> *Other signals*: >>> >>> *WebView application risks* >>> >>> Does this intent deprecate or change behavior of existing APIs, such >>> that it has potentially high risk for Android WebView-based applications? >>> None >>> >>> >>> *Debuggability* >>> None >>> >>> *Will this feature be supported on all six Blink platforms (Windows, >>> Mac, Linux, ChromeOS, Android, and Android WebView)?* >>> Yes >>> All platforms will eventually have support. Will immediately be >>> available on Android, Android WebView, ChromeOS, Mac, and Windows, since >>> those platforms already support WebGPU. WebGPU will also start shipping on >>> Linux in M144 on some devices, so this feature will become available when >>> WebGPU does. >>> >>> *Is this feature fully tested by web-platform-tests >>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?* >>> Yes >>> WebGPU/WGSL have a conformance test suite (https://github.com/gpuweb/cts) >>> that is regularly pulled into Chromium and part of the testing of Dawn/Tint >>> in Chromium. While the CTS can be embedded in WPT, the WebGPU team opted to >>> keep it separate in Chromium testing to use a customized harness for >>> robustness and performance. CTS coverage for the feature was added here: >>> https://github.com/gpuweb/cts/pull/4487 >>> >>> *Flag name on about://flags* >>> Enable Unsafe WebGPU >>> >>> *Finch feature name* >>> UnsafeWGSLFeatures >>> >>> *Rollout plan* >>> Will ship enabled for all users >>> >>> *Requires code in //chrome?* >>> False >>> >>> *Tracking bug* >>> https://crbug.com/454654255 >>> >>> *Estimated milestones* >>> Shipping on desktop 144 >>> Shipping on Android 144 >>> Shipping on WebView 144 >>> >>> *Anticipated spec changes* >>> >>> Open questions about a feature may be a source of future web compat or >>> interop issues. Please list open issues (e.g. links to known github issues >>> in the project for the feature specification) whose resolution may >>> introduce web compat/interop risk (e.g., changing to naming or structure of >>> the API in a non-backward-compatible way). >>> *No information provided* >>> >>> *Link to entry on the Chrome Platform Status* >>> https://chromestatus.com/feature/5072447137251328?gate=4692381941235712 >>> >>> This intent message was generated by Chrome Platform Status >>> <https://chromestatus.com>. >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "blink-dev" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion visit >>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/690bc13a.050a0220.293f7.00b9.GAE%40google.com >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/690bc13a.050a0220.293f7.00b9.GAE%40google.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "blink-dev" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOMQ%2Bw8bQWPtT-XEwayDmLzjqC8Cu%3DqV25L9FBM-ydd50_Ch2g%40mail.gmail.com >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOMQ%2Bw8bQWPtT-XEwayDmLzjqC8Cu%3DqV25L9FBM-ydd50_Ch2g%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAARdPYfU-Pp4Vjjy24Ubw%3DfgJTLFShfWUxHtvwzKHz7gJYdhYg%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAARdPYfU-Pp4Vjjy24Ubw%3DfgJTLFShfWUxHtvwzKHz7gJYdhYg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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