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@sokra sokra commented Dec 22, 2025

What?

avoid using blocking tasks for IO work as we can't control the priority of blocking tasks.

Why?

We already control concurrency of fs access via a semaphore which helps to ensure we won't tie up all tokio threads and we are generally suspicious that moving this blocking work to blocking threads is worthwhile

@nextjs-bot nextjs-bot added created-by: Turbopack team PRs by the Turbopack team. Turbopack Related to Turbopack with Next.js. labels Dec 22, 2025
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Allow CI Workflow Run

  • approve CI run for commit: 2385f3a

Note: this should only be enabled once the PR is ready to go and can only be enabled by a maintainer

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Allow CI Workflow Run

  • approve CI run for commit: 2385f3a

Note: this should only be enabled once the PR is ready to go and can only be enabled by a maintainer

@sokra sokra changed the title remove sempore time from span Turbopack: avoid blocking tasks for I/O work Dec 22, 2025
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nextjs-bot commented Dec 22, 2025

Stats from current PR

Default Build (Increase detected ⚠️)
General
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
buildDuration 17s 14.8s N/A
buildDurationCached 13.8s 10.8s N/A
nodeModulesSize 457 MB 457 MB
nextStartRea..uration (ms) 713ms 716ms N/A
Client Bundles (main, webpack) Overall increase ⚠️
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
2086.HASH.js gzip 169 B 169 B
2161-HASH.js gzip 5.39 kB 5.41 kB N/A
2747-HASH.js gzip 4.48 kB 4.46 kB N/A
4322-HASH.js gzip 51.2 kB 51 kB N/A
ec793fe8-HASH.js gzip 62.3 kB 62.3 kB N/A
framework-HASH.js gzip 59.8 kB 59.8 kB N/A
main-app-HASH.js gzip 251 B 254 B N/A
main-HASH.js gzip 38.4 kB 38.7 kB ⚠️ +368 B
webpack-HASH.js gzip 1.68 kB 1.69 kB N/A
Overall change 38.5 kB 38.9 kB ⚠️ +368 B
Legacy Client Bundles (polyfills)
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
polyfills-HASH.js gzip 39.4 kB 39.4 kB
Overall change 39.4 kB 39.4 kB
Client Pages
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
_app-HASH.js gzip 194 B 193 B N/A
_error-HASH.js gzip 182 B 182 B
css-HASH.js gzip 336 B 335 B N/A
dynamic-HASH.js gzip 1.8 kB 1.8 kB N/A
edge-ssr-HASH.js gzip 256 B 256 B
head-HASH.js gzip 352 B 349 B N/A
hooks-HASH.js gzip 385 B 384 B N/A
image-HASH.js gzip 580 B 580 B
index-HASH.js gzip 259 B 258 B N/A
link-HASH.js gzip 2.5 kB 2.51 kB N/A
routerDirect..HASH.js gzip 319 B 317 B N/A
script-HASH.js gzip 385 B 387 B N/A
withRouter-HASH.js gzip 316 B 315 B N/A
1afbb74e6ecf..834.css gzip 106 B 106 B
Overall change 1.12 kB 1.12 kB
Client Build Manifests
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
_buildManifest.js gzip 738 B 738 B
Overall change 738 B 738 B
Rendered Page Sizes
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
index.html gzip 523 B 525 B N/A
link.html gzip 537 B 539 B N/A
withRouter.html gzip 520 B 521 B N/A
Overall change 0 B 0 B
Edge SSR bundle Size Overall increase ⚠️
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
edge-ssr.js gzip 124 kB 124 kB N/A
page.js gzip 237 kB 238 kB ⚠️ +585 B
Overall change 237 kB 238 kB ⚠️ +585 B
Middleware size
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
middleware-b..fest.js gzip 653 B 655 B N/A
middleware-r..fest.js gzip 155 B 156 B N/A
middleware.js gzip 32.9 kB 32.9 kB N/A
edge-runtime..pack.js gzip 846 B 846 B
Overall change 846 B 846 B
Next Runtimes
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
app-page-exp...dev.js gzip 301 kB 301 kB N/A
app-page-exp..prod.js gzip 156 kB 156 kB
app-page-tur...dev.js gzip 301 kB 301 kB N/A
app-page-tur..prod.js gzip 156 kB 156 kB
app-page-tur...dev.js gzip 298 kB 298 kB N/A
app-page-tur..prod.js gzip 154 kB 154 kB
app-page.run...dev.js gzip 298 kB 298 kB N/A
app-page.run..prod.js gzip 154 kB 154 kB
app-route-ex...dev.js gzip 68.7 kB 68.7 kB
app-route-ex..prod.js gzip 47.5 kB 47.5 kB
app-route-tu...dev.js gzip 68.7 kB 68.7 kB
app-route-tu..prod.js gzip 47.5 kB 47.5 kB
app-route-tu...dev.js gzip 68.3 kB 68.3 kB
app-route-tu..prod.js gzip 47.3 kB 47.3 kB
app-route.ru...dev.js gzip 68.3 kB 68.3 kB
app-route.ru..prod.js gzip 47.3 kB 47.3 kB
dist_client_...dev.js gzip 324 B 324 B
dist_client_...dev.js gzip 326 B 326 B
dist_client_...dev.js gzip 318 B 318 B
dist_client_...dev.js gzip 317 B 317 B
pages-api-tu...dev.js gzip 41.1 kB 41.1 kB
pages-api-tu..prod.js gzip 31.2 kB 31.2 kB
pages-api.ru...dev.js gzip 41 kB 41 kB
pages-api.ru..prod.js gzip 31.2 kB 31.2 kB
pages-turbo....dev.js gzip 50.7 kB 50.7 kB
pages-turbo...prod.js gzip 38.2 kB 38.2 kB
pages.runtim...dev.js gzip 50.6 kB 50.6 kB
pages.runtim..prod.js gzip 38.1 kB 38.1 kB
server.runti..prod.js gzip 59.9 kB 59.9 kB
Overall change 1.47 MB 1.47 MB
build cache Overall increase ⚠️
vercel/next.js canary vercel/next.js sokra/fs-no-blocking-task Change
0.pack gzip 3.6 MB 3.61 MB ⚠️ +7.45 kB
index.pack gzip 98.5 kB 97.9 kB N/A
Overall change 3.6 MB 3.61 MB ⚠️ +7.45 kB
Diff details
Diff for page.js

Diff too large to display

Diff for middleware.js

Diff too large to display

Diff for edge-ssr.js

Diff too large to display

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+        let instance;
+        if (existing) {
+          instance = observers.get(existing);
+          if (instance) {
+            return instance;
+          }
+        }
+        const elements = new Map();
+        const observer = new IntersectionObserver((entries) => {
+          entries.forEach((entry) => {
+            const callback = elements.get(entry.target);
+            const isVisible =
+              entry.isIntersecting || entry.intersectionRatio > 0;
+            if (callback && isVisible) {
+              callback(isVisible);
+            }
+          });
+        }, options);
+        instance = {
+          id,
+          observer,
+          elements,
+        };
+        idList.push(id);
+        observers.set(id, instance);
+        return instance;
+      }
+      function observe(element, callback, options) {
+        const { id, observer, elements } = createObserver(options);
+        elements.set(element, callback);
+        observer.observe(element);
+        return function unobserve() {
+          elements.delete(element);
+          observer.unobserve(element);
+          // Destroy observer when there's nothing left to watch:
+          if (elements.size === 0) {
+            observer.disconnect();
+            observers.delete(id);
+            const index = idList.findIndex(
+              (obj) => obj.root === id.root && obj.margin === id.margin
+            );
+            if (index > -1) {
+              idList.splice(index, 1);
+            }
+          }
+        };
+      }
+      function useIntersection({ rootRef, rootMargin, disabled }) {
+        const isDisabled = disabled || !hasIntersectionObserver;
+        const [visible, setVisible] = (0, _react.useState)(false);
+        const elementRef = (0, _react.useRef)(null);
+        const setElement = (0, _react.useCallback)((element) => {
+          elementRef.current = element;
+        }, []);
+        (0, _react.useEffect)(() => {
+          if (hasIntersectionObserver) {
+            if (isDisabled || visible) return;
+            const element = elementRef.current;
+            if (element && element.tagName) {
+              const unobserve = observe(
+                element,
+                (isVisible) => isVisible && setVisible(isVisible),
+                {
+                  root: rootRef?.current,
+                  rootMargin,
+                }
+              );
+              return unobserve;
+            }
+          } else {
+            if (!visible) {
+              const idleCallback = (0,
+              _requestidlecallback.requestIdleCallback)(() => setVisible(true));
+              return () =>
+                (0, _requestidlecallback.cancelIdleCallback)(idleCallback);
+            }
+          }
+          // eslint-disable-next-line react-hooks/exhaustive-deps
+        }, [isDisabled, rootMargin, rootRef, visible, elementRef.current]);
+        const resetVisible = (0, _react.useCallback)(() => {
+          setVisible(false);
+        }, []);
+        return [setElement, visible, resetVisible];
+      }
+      if (
+        (typeof exports.default === "function" ||
+          (typeof exports.default === "object" && exports.default !== null)) &&
+        typeof exports.default.__esModule === "undefined"
+      ) {
+        Object.defineProperty(exports.default, "__esModule", {
+          value: true,
+        });
+        Object.assign(exports.default, exports);
+        module.exports = exports.default;
+      } //# sourceMappingURL=use-intersection.js.map
+
+      /***/
+    },
+
+    /***/ 3351: /***/ (module, exports, __webpack_require__) => {
+      "use strict";
+
+      Object.defineProperty(exports, "__esModule", {
+        value: true,
+      });
+      Object.defineProperty(exports, "useMergedRef", {
+        enumerable: true,
+        get: function () {
+          return useMergedRef;
+        },
+      });
+      const _react = __webpack_require__(4312);
+      function useMergedRef(refA, refB) {
+        const cleanupA = (0, _react.useRef)(null);
+        const cleanupB = (0, _react.useRef)(null);
+        // NOTE: In theory, we could skip the wrapping if only one of the refs is non-null.
+        // (this happens often if the user doesn't pass a ref to Link/Form/Image)
+        // But this can cause us to leak a cleanup-ref into user code (previously via `<Link legacyBehavior>`),
+        // and the user might pass that ref into ref-merging library that doesn't support cleanup refs
+        // (because it hasn't been updated for React 19)
+        // which can then cause things to blow up, because a cleanup-returning ref gets called with `null`.
+        // So in practice, it's safer to be defensive and always wrap the ref, even on React 19.
+        return (0, _react.useCallback)(
+          (current) => {
+            if (current === null) {
+              const cleanupFnA = cleanupA.current;
+              if (cleanupFnA) {
+                cleanupA.current = null;
+                cleanupFnA();
+              }
+              const cleanupFnB = cleanupB.current;
+              if (cleanupFnB) {
+                cleanupB.current = null;
+                cleanupFnB();
+              }
+            } else {
+              if (refA) {
+                cleanupA.current = applyRef(refA, current);
+              }
+              if (refB) {
+                cleanupB.current = applyRef(refB, current);
+              }
+            }
+          },
+          [refA, refB]
+        );
+      }
+      function applyRef(refA, current) {
+        if (typeof refA === "function") {
+          const cleanup = refA(current);
+          if (typeof cleanup === "function") {
+            return cleanup;
+          } else {
+            return () => refA(null);
+          }
+        } else {
+          refA.current = current;
+          return () => {
+            refA.current = null;
+          };
+        }
+      }
+      if (
+        (typeof exports.default === "function" ||
+          (typeof exports.default === "object" && exports.default !== null)) &&
+        typeof exports.default.__esModule === "undefined"
+      ) {
+        Object.defineProperty(exports.default, "__esModule", {
+          value: true,
+        });
+        Object.assign(exports.default, exports);
+        module.exports = exports.default;
+      } //# sourceMappingURL=use-merged-ref.js.map
+
+      /***/
+    },
+
+    /***/ 3440: /***/ (
+      module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      module.exports = __webpack_require__(4757);
+
+      /***/
+    },
+
+    /***/ 4757: /***/ (module, exports, __webpack_require__) => {
       "use strict";
       /* __next_internal_client_entry_do_not_use__  cjs */
       Object.defineProperty(exports, "__esModule", {
@@ -23,22 +236,22 @@
           return useLinkStatus;
         },
       });
-      const _interop_require_wildcard = __webpack_require__(8781);
+      const _interop_require_wildcard = __webpack_require__(1162);
       const _jsxruntime = __webpack_require__(3108);
       const _react = /*#__PURE__*/ _interop_require_wildcard._(
         __webpack_require__(4312)
       );
-      const _resolvehref = __webpack_require__(4055);
-      const _islocalurl = __webpack_require__(7175);
-      const _formaturl = __webpack_require__(9674);
-      const _utils = __webpack_require__(7424);
-      const _addlocale = __webpack_require__(589);
-      const _routercontextsharedruntime = __webpack_require__(7010);
-      const _useintersection = __webpack_require__(2330);
-      const _getdomainlocale = __webpack_require__(7207);
-      const _addbasepath = __webpack_require__(9942);
-      const _usemergedref = __webpack_require__(8067);
-      const _erroronce = __webpack_require__(1945);
+      const _resolvehref = __webpack_require__(4691);
+      const _islocalurl = __webpack_require__(4763);
+      const _formaturl = __webpack_require__(3246);
+      const _utils = __webpack_require__(7372);
+      const _addlocale = __webpack_require__(1809);
+      const _routercontextsharedruntime = __webpack_require__(2254);
+      const _useintersection = __webpack_require__(2774);
+      const _getdomainlocale = __webpack_require__(8803);
+      const _addbasepath = __webpack_require__(5834);
+      const _usemergedref = __webpack_require__(3351);
+      const _erroronce = __webpack_require__(6021);
       const prefetched = new Set();
       function prefetch(router, href, as, options) {
         if (false) {
@@ -417,168 +630,43 @@
       /***/
     },
 
-    /***/ 1945: /***/ (__unused_webpack_module, exports) => {
-      "use strict";
-
-      Object.defineProperty(exports, "__esModule", {
-        value: true,
-      });
-      Object.defineProperty(exports, "errorOnce", {
-        enumerable: true,
-        get: function () {
-          return errorOnce;
+    /***/ 5326: /***/ (
+      __unused_webpack_module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      (window.__NEXT_P = window.__NEXT_P || []).push([
+        "/link",
+        function () {
+          return __webpack_require__(9058);
         },
-      });
-      let errorOnce = (_) => {};
+      ]);
       if (false) {
-      } //# sourceMappingURL=error-once.js.map
+      }
 
       /***/
     },
 
-    /***/ 2330: /***/ (module, exports, __webpack_require__) => {
+    /***/ 6021: /***/ (__unused_webpack_module, exports) => {
       "use strict";
 
       Object.defineProperty(exports, "__esModule", {
         value: true,
       });
-      Object.defineProperty(exports, "useIntersection", {
+      Object.defineProperty(exports, "errorOnce", {
         enumerable: true,
         get: function () {
-          return useIntersection;
+          return errorOnce;
         },
       });
-      const _react = __webpack_require__(4312);
-      const _requestidlecallback = __webpack_require__(601);
-      const hasIntersectionObserver =
-        typeof IntersectionObserver === "function";
-      const observers = new Map();
-      const idList = [];
-      function createObserver(options) {
-        const id = {
-          root: options.root || null,
-          margin: options.rootMargin || "",
-        };
-        const existing = idList.find(
-          (obj) => obj.root === id.root && obj.margin === id.margin
-        );
-        let instance;
-        if (existing) {
-          instance = observers.get(existing);
-          if (instance) {
-            return instance;
-          }
-        }
-        const elements = new Map();
-        const observer = new IntersectionObserver((entries) => {
-          entries.forEach((entry) => {
-            const callback = elements.get(entry.target);
-            const isVisible =
-              entry.isIntersecting || entry.intersectionRatio > 0;
-            if (callback && isVisible) {
-              callback(isVisible);
-            }
-          });
-        }, options);
-        instance = {
-          id,
-          observer,
-          elements,
-        };
-        idList.push(id);
-        observers.set(id, instance);
-        return instance;
-      }
-      function observe(element, callback, options) {
-        const { id, observer, elements } = createObserver(options);
-        elements.set(element, callback);
-        observer.observe(element);
-        return function unobserve() {
-          elements.delete(element);
-          observer.unobserve(element);
-          // Destroy observer when there's nothing left to watch:
-          if (elements.size === 0) {
-            observer.disconnect();
-            observers.delete(id);
-            const index = idList.findIndex(
-              (obj) => obj.root === id.root && obj.margin === id.margin
-            );
-            if (index > -1) {
-              idList.splice(index, 1);
-            }
-          }
-        };
-      }
-      function useIntersection({ rootRef, rootMargin, disabled }) {
-        const isDisabled = disabled || !hasIntersectionObserver;
-        const [visible, setVisible] = (0, _react.useState)(false);
-        const elementRef = (0, _react.useRef)(null);
-        const setElement = (0, _react.useCallback)((element) => {
-          elementRef.current = element;
-        }, []);
-        (0, _react.useEffect)(() => {
-          if (hasIntersectionObserver) {
-            if (isDisabled || visible) return;
-            const element = elementRef.current;
-            if (element && element.tagName) {
-              const unobserve = observe(
-                element,
-                (isVisible) => isVisible && setVisible(isVisible),
-                {
-                  root: rootRef?.current,
-                  rootMargin,
-                }
-              );
-              return unobserve;
-            }
-          } else {
-            if (!visible) {
-              const idleCallback = (0,
-              _requestidlecallback.requestIdleCallback)(() => setVisible(true));
-              return () =>
-                (0, _requestidlecallback.cancelIdleCallback)(idleCallback);
-            }
-          }
-          // eslint-disable-next-line react-hooks/exhaustive-deps
-        }, [isDisabled, rootMargin, rootRef, visible, elementRef.current]);
-        const resetVisible = (0, _react.useCallback)(() => {
-          setVisible(false);
-        }, []);
-        return [setElement, visible, resetVisible];
-      }
-      if (
-        (typeof exports.default === "function" ||
-          (typeof exports.default === "object" && exports.default !== null)) &&
-        typeof exports.default.__esModule === "undefined"
-      ) {
-        Object.defineProperty(exports.default, "__esModule", {
-          value: true,
-        });
-        Object.assign(exports.default, exports);
-        module.exports = exports.default;
-      } //# sourceMappingURL=use-intersection.js.map
-
-      /***/
-    },
-
-    /***/ 4972: /***/ (
-      __unused_webpack_module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      (window.__NEXT_P = window.__NEXT_P || []).push([
-        "/link",
-        function () {
-          return __webpack_require__(7600);
-        },
-      ]);
+      let errorOnce = (_) => {};
       if (false) {
-      }
+      } //# sourceMappingURL=error-once.js.map
 
       /***/
     },
 
-    /***/ 7207: /***/ (module, exports, __webpack_require__) => {
+    /***/ 8803: /***/ (module, exports, __webpack_require__) => {
       "use strict";
 
       Object.defineProperty(exports, "__esModule", {
@@ -590,7 +678,7 @@
           return getDomainLocale;
         },
       });
-      const _normalizetrailingslash = __webpack_require__(151);
+      const _normalizetrailingslash = __webpack_require__(1315);
       const basePath =
         /* unused pure expression or super */ null && (false || "");
       function getDomainLocale(path, locale, locales, domainLocales) {
@@ -614,7 +702,7 @@
       /***/
     },
 
-    /***/ 7600: /***/ (
+    /***/ 9058: /***/ (
       __unused_webpack_module,
       __webpack_exports__,
       __webpack_require__
@@ -629,7 +717,7 @@
       /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
         __webpack_require__(3108);
       /* harmony import */ var next_link__WEBPACK_IMPORTED_MODULE_1__ =
-        __webpack_require__(7830);
+        __webpack_require__(3440);
       /* harmony import */ var next_link__WEBPACK_IMPORTED_MODULE_1___default =
         /*#__PURE__*/ __webpack_require__.n(
           next_link__WEBPACK_IMPORTED_MODULE_1__
@@ -659,101 +747,13 @@
 
       /***/
     },
-
-    /***/ 7830: /***/ (
-      module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      module.exports = __webpack_require__(857);
-
-      /***/
-    },
-
-    /***/ 8067: /***/ (module, exports, __webpack_require__) => {
-      "use strict";
-
-      Object.defineProperty(exports, "__esModule", {
-        value: true,
-      });
-      Object.defineProperty(exports, "useMergedRef", {
-        enumerable: true,
-        get: function () {
-          return useMergedRef;
-        },
-      });
-      const _react = __webpack_require__(4312);
-      function useMergedRef(refA, refB) {
-        const cleanupA = (0, _react.useRef)(null);
-        const cleanupB = (0, _react.useRef)(null);
-        // NOTE: In theory, we could skip the wrapping if only one of the refs is non-null.
-        // (this happens often if the user doesn't pass a ref to Link/Form/Image)
-        // But this can cause us to leak a cleanup-ref into user code (previously via `<Link legacyBehavior>`),
-        // and the user might pass that ref into ref-merging library that doesn't support cleanup refs
-        // (because it hasn't been updated for React 19)
-        // which can then cause things to blow up, because a cleanup-returning ref gets called with `null`.
-        // So in practice, it's safer to be defensive and always wrap the ref, even on React 19.
-        return (0, _react.useCallback)(
-          (current) => {
-            if (current === null) {
-              const cleanupFnA = cleanupA.current;
-              if (cleanupFnA) {
-                cleanupA.current = null;
-                cleanupFnA();
-              }
-              const cleanupFnB = cleanupB.current;
-              if (cleanupFnB) {
-                cleanupB.current = null;
-                cleanupFnB();
-              }
-            } else {
-              if (refA) {
-                cleanupA.current = applyRef(refA, current);
-              }
-              if (refB) {
-                cleanupB.current = applyRef(refB, current);
-              }
-            }
-          },
-          [refA, refB]
-        );
-      }
-      function applyRef(refA, current) {
-        if (typeof refA === "function") {
-          const cleanup = refA(current);
-          if (typeof cleanup === "function") {
-            return cleanup;
-          } else {
-            return () => refA(null);
-          }
-        } else {
-          refA.current = current;
-          return () => {
-            refA.current = null;
-          };
-        }
-      }
-      if (
-        (typeof exports.default === "function" ||
-          (typeof exports.default === "object" && exports.default !== null)) &&
-        typeof exports.default.__esModule === "undefined"
-      ) {
-        Object.defineProperty(exports.default, "__esModule", {
-          value: true,
-        });
-        Object.assign(exports.default, exports);
-        module.exports = exports.default;
-      } //# sourceMappingURL=use-merged-ref.js.map
-
-      /***/
-    },
   },
   /******/ (__webpack_require__) => {
     // webpackRuntimeModules
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(4972)
+      __webpack_exec__(5326)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
Diff for routerDirect-HASH.js
@@ -1,17 +1,7 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [188],
   {
-    /***/ 1179: /***/ (
-      module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      module.exports = __webpack_require__(9864);
-
-      /***/
-    },
-
-    /***/ 1640: /***/ (
+    /***/ 2014: /***/ (
       __unused_webpack_module,
       __webpack_exports__,
       __webpack_require__
@@ -26,7 +16,7 @@
       /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
         __webpack_require__(3108);
       /* harmony import */ var next_router__WEBPACK_IMPORTED_MODULE_1__ =
-        __webpack_require__(1179);
+        __webpack_require__(4169);
       /* harmony import */ var next_router__WEBPACK_IMPORTED_MODULE_1___default =
         /*#__PURE__*/ __webpack_require__.n(
           next_router__WEBPACK_IMPORTED_MODULE_1__
@@ -46,7 +36,17 @@
       /***/
     },
 
-    /***/ 2172: /***/ (
+    /***/ 4169: /***/ (
+      module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      module.exports = __webpack_require__(9700);
+
+      /***/
+    },
+
+    /***/ 4414: /***/ (
       __unused_webpack_module,
       __unused_webpack_exports,
       __webpack_require__
@@ -54,7 +54,7 @@
       (window.__NEXT_P = window.__NEXT_P || []).push([
         "/routerDirect",
         function () {
-          return __webpack_require__(1640);
+          return __webpack_require__(2014);
         },
       ]);
       if (false) {
@@ -68,7 +68,7 @@
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(2172)
+      __webpack_exec__(4414)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
Diff for script-HASH.js
@@ -1,17 +1,34 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [1209],
   {
-    /***/ 4977: /***/ (
+    /***/ 2591: /***/ (
       module,
       __unused_webpack_exports,
       __webpack_require__
     ) => {
-      module.exports = __webpack_require__(326);
+      module.exports = __webpack_require__(4634);
 
       /***/
     },
 
-    /***/ 5887: /***/ (
+    /***/ 5030: /***/ (
+      __unused_webpack_module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      (window.__NEXT_P = window.__NEXT_P || []).push([
+        "/script",
+        function () {
+          return __webpack_require__(7557);
+        },
+      ]);
+      if (false) {
+      }
+
+      /***/
+    },
+
+    /***/ 7557: /***/ (
       __unused_webpack_module,
       __webpack_exports__,
       __webpack_require__
@@ -26,7 +43,7 @@
       /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
         __webpack_require__(3108);
       /* harmony import */ var next_script__WEBPACK_IMPORTED_MODULE_1__ =
-        __webpack_require__(4977);
+        __webpack_require__(2591);
       /* harmony import */ var next_script__WEBPACK_IMPORTED_MODULE_1___default =
         /*#__PURE__*/ __webpack_require__.n(
           next_script__WEBPACK_IMPORTED_MODULE_1__
@@ -58,30 +75,13 @@
 
       /***/
     },
-
-    /***/ 6268: /***/ (
-      __unused_webpack_module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      (window.__NEXT_P = window.__NEXT_P || []).push([
-        "/script",
-        function () {
-          return __webpack_require__(5887);
-        },
-      ]);
-      if (false) {
-      }
-
-      /***/
-    },
   },
   /******/ (__webpack_require__) => {
     // webpackRuntimeModules
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(6268)
+      __webpack_exec__(5030)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
Diff for withRouter-HASH.js
@@ -1,34 +1,7 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [3263],
   {
-    /***/ 1179: /***/ (
-      module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      module.exports = __webpack_require__(9864);
-
-      /***/
-    },
-
-    /***/ 2028: /***/ (
-      __unused_webpack_module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      (window.__NEXT_P = window.__NEXT_P || []).push([
-        "/withRouter",
-        function () {
-          return __webpack_require__(4501);
-        },
-      ]);
-      if (false) {
-      }
-
-      /***/
-    },
-
-    /***/ 4501: /***/ (
+    /***/ 559: /***/ (
       __unused_webpack_module,
       __webpack_exports__,
       __webpack_require__
@@ -43,7 +16,7 @@
       /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
         __webpack_require__(3108);
       /* harmony import */ var next_router__WEBPACK_IMPORTED_MODULE_1__ =
-        __webpack_require__(1179);
+        __webpack_require__(4169);
       /* harmony import */ var next_router__WEBPACK_IMPORTED_MODULE_1___default =
         /*#__PURE__*/ __webpack_require__.n(
           next_router__WEBPACK_IMPORTED_MODULE_1__
@@ -61,13 +34,40 @@
 
       /***/
     },
+
+    /***/ 726: /***/ (
+      __unused_webpack_module,
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Commit: e75c2a4

@sokra sokra changed the base branch from sokra/tracing-child-count to graphite-base/87661 January 5, 2026 11:36
@sokra sokra force-pushed the sokra/fs-no-blocking-task branch from 2385f3a to e75c2a4 Compare January 5, 2026 11:38
@sokra sokra force-pushed the graphite-base/87661 branch from b796ab7 to f3a3ce6 Compare January 5, 2026 11:38
@sokra sokra changed the base branch from graphite-base/87661 to sokra/tracing-child-count January 5, 2026 11:38
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codspeed-hq bot commented Jan 5, 2026

Merging this PR will not alter performance

Summary

✅ 17 untouched benchmarks
⏩ 3 skipped benchmarks1


Comparing sokra/fs-no-blocking-task (7df889b) with canary (f24e66a)

Open in CodSpeed

Footnotes

  1. 3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports.

@sokra sokra marked this pull request as ready for review January 7, 2026 08:18
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nextjs-bot commented Jan 7, 2026

Stats from current PR

✅ No significant changes detected

📊 All Metrics
📖 Metrics Glossary

Dev Server Metrics:

  • Listen = TCP port starts accepting connections
  • First Request = HTTP server returns successful response
  • Cold = Fresh build (no cache)
  • Warm = With cached build artifacts

Build Metrics:

  • Fresh = Clean build (no .next directory)
  • Cached = With existing .next directory

Change Thresholds:

  • Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
  • Size: Changes < 1KB AND < 1% are insignificant
  • All other changes are flagged to catch regressions

⚡ Dev Server

Metric Canary PR Change Trend
Cold (Listen) 455ms 455ms ▁▁▁▁█
Cold (First Request) 1.152s 1.177s ▇███▂
Warm (Listen) 456ms 456ms ▁█▁▁█
Warm (First Request) 372ms 385ms ▁▂▇▂█
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 456ms 455ms ▁▁▁▁▁
Cold (First Request) 1.838s 1.833s ▁▂▂▂▂
Warm (Listen) 456ms 456ms ▁▁▁▁▁
Warm (First Request) 1.851s 1.855s ▁▂▂▂▂

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 4.140s 4.163s ▁▂▁▁█
Cached Build 4.181s 4.158s ▂▂▁▂█
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 13.949s 13.922s ▁▃▂▁▁
Cached Build 14.066s 14.110s ▁▃▂▁▁
node_modules Size 457 MB 457 MB ▁▁▁██
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **431 kB** → **431 kB** ⚠️ +2 B

82 files with content-based hashes (individual files not comparable between builds)

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 785 B 788 B
Total 785 B 788 B ⚠️ +3 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 451 B 451 B
Total 451 B 451 B

📦 Webpack

Client

Main Bundles
Canary PR Change
2086.HASH.js gzip 169 B N/A -
2161-HASH.js gzip 5.4 kB N/A -
2747-HASH.js gzip 4.48 kB N/A -
4322-HASH.js gzip 52.7 kB N/A -
ec793fe8-HASH.js gzip 62.3 kB N/A -
framework-HASH.js gzip 59.8 kB 59.8 kB
main-app-HASH.js gzip 251 B 254 B 🔴 +3 B (+1%)
main-HASH.js gzip 38.6 kB 38.9 kB
webpack-HASH.js gzip 1.68 kB 1.68 kB
1596.HASH.js gzip N/A 169 B -
2658-HASH.js gzip N/A 52.5 kB -
6349-HASH.js gzip N/A 4.46 kB -
7019-HASH.js gzip N/A 5.42 kB -
b17a3386-HASH.js gzip N/A 62.3 kB -
Total 225 kB 225 kB ⚠️ +160 B
Polyfills
Canary PR Change
polyfills-HASH.js gzip 39.4 kB 39.4 kB
Total 39.4 kB 39.4 kB
Pages
Canary PR Change
_app-HASH.js gzip 194 B 193 B
_error-HASH.js gzip 182 B 182 B
css-HASH.js gzip 336 B 335 B
dynamic-HASH.js gzip 1.8 kB 1.8 kB
edge-ssr-HASH.js gzip 256 B 256 B
head-HASH.js gzip 352 B 349 B
hooks-HASH.js gzip 385 B 384 B
image-HASH.js gzip 580 B 580 B
index-HASH.js gzip 259 B 258 B
link-HASH.js gzip 2.5 kB 2.51 kB
routerDirect..HASH.js gzip 319 B 317 B
script-HASH.js gzip 385 B 387 B
withRouter-HASH.js gzip 316 B 315 B
1afbb74e6ecf..834.css gzip 106 B 106 B
Total 7.97 kB 7.96 kB ✅ -8 B

Server

Edge SSR
Canary PR Change
edge-ssr.js gzip 124 kB 124 kB
page.js gzip 240 kB 241 kB
Total 364 kB 366 kB ⚠️ +1.06 kB
Middleware
Canary PR Change
middleware-b..fest.js gzip 652 B 654 B
middleware-r..fest.js gzip 155 B 156 B
middleware.js gzip 32.7 kB 33 kB
edge-runtime..pack.js gzip 842 B 842 B
Total 34.4 kB 34.6 kB ⚠️ +255 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 738 B 738 B
Total 738 B 738 B
Build Cache
Canary PR Change
0.pack gzip 3.63 MB 3.63 MB
index.pack gzip 101 kB 98.7 kB 🟢 1.89 kB (-2%)
index.pack.old gzip 100 kB 98.8 kB 🟢 1.37 kB (-1%)
Total 3.83 MB 3.83 MB ⚠️ +3 B

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 303 kB 303 kB
app-page-exp..prod.js gzip 158 kB 158 kB
app-page-tur...dev.js gzip 303 kB 303 kB
app-page-tur..prod.js gzip 158 kB 158 kB
app-page-tur...dev.js gzip 299 kB 299 kB
app-page-tur..prod.js gzip 156 kB 156 kB
app-page.run...dev.js gzip 300 kB 300 kB
app-page.run..prod.js gzip 156 kB 156 kB
app-route-ex...dev.js gzip 68.7 kB 68.7 kB
app-route-ex..prod.js gzip 47.5 kB 47.5 kB
app-route-tu...dev.js gzip 68.7 kB 68.7 kB
app-route-tu..prod.js gzip 47.6 kB 47.6 kB
app-route-tu...dev.js gzip 68.3 kB 68.3 kB
app-route-tu..prod.js gzip 47.3 kB 47.3 kB
app-route.ru...dev.js gzip 68.3 kB 68.3 kB
app-route.ru..prod.js gzip 47.3 kB 47.3 kB
dist_client_...dev.js gzip 324 B 324 B
dist_client_...dev.js gzip 326 B 326 B
dist_client_...dev.js gzip 318 B 318 B
dist_client_...dev.js gzip 317 B 317 B
pages-api-tu...dev.js gzip 41.1 kB 41.1 kB
pages-api-tu..prod.js gzip 31.2 kB 31.2 kB
pages-api.ru...dev.js gzip 41 kB 41 kB
pages-api.ru..prod.js gzip 31.2 kB 31.2 kB
pages-turbo....dev.js gzip 50.8 kB 50.8 kB
pages-turbo...prod.js gzip 38.2 kB 38.2 kB
pages.runtim...dev.js gzip 50.7 kB 50.7 kB
pages.runtim..prod.js gzip 38.2 kB 38.2 kB
server.runti..prod.js gzip 62.2 kB 62.2 kB
Total 2.68 MB 2.68 MB ⚠️ +1 B

@sokra sokra force-pushed the sokra/tracing-child-count branch from ae27e72 to 6c66f35 Compare January 7, 2026 11:45
@sokra sokra force-pushed the sokra/fs-no-blocking-task branch from 013a7db to 1cdd34f Compare January 7, 2026 11:45
@sokra sokra force-pushed the sokra/tracing-child-count branch from 6c66f35 to a78ad3d Compare January 7, 2026 13:13
@sokra sokra force-pushed the sokra/fs-no-blocking-task branch 2 times, most recently from 09e9faa to eb12f8f Compare January 7, 2026 14:29
@sokra sokra force-pushed the sokra/tracing-child-count branch 3 times, most recently from e51db5f to 1c550eb Compare January 7, 2026 15:34
@sokra sokra force-pushed the sokra/fs-no-blocking-task branch from eb12f8f to e300c74 Compare January 7, 2026 15:34
@sokra sokra changed the base branch from sokra/tracing-child-count to graphite-base/87661 January 8, 2026 08:16
@sokra sokra force-pushed the sokra/fs-no-blocking-task branch from e300c74 to ca90297 Compare January 8, 2026 08:16
@sokra sokra force-pushed the graphite-base/87661 branch from 1c550eb to 0a67646 Compare January 8, 2026 08:16
@sokra sokra changed the base branch from graphite-base/87661 to sokra/tracing-child-count January 8, 2026 08:16
@sokra sokra force-pushed the sokra/tracing-child-count branch 2 times, most recently from 508148b to c2f3588 Compare January 8, 2026 08:26
@sokra sokra force-pushed the sokra/fs-no-blocking-task branch from ca90297 to dca27d1 Compare January 8, 2026 08:26
@sokra sokra changed the base branch from sokra/tracing-child-count to graphite-base/87661 January 8, 2026 09:09
@sokra sokra force-pushed the sokra/fs-no-blocking-task branch from dca27d1 to 6302e7e Compare January 8, 2026 09:10
@sokra sokra force-pushed the graphite-base/87661 branch from c2f3588 to f24e66a Compare January 8, 2026 09:10
@graphite-app graphite-app bot changed the base branch from graphite-base/87661 to canary January 8, 2026 09:10
@sokra sokra force-pushed the sokra/fs-no-blocking-task branch from 6302e7e to 7df889b Compare January 8, 2026 09:10
@sokra sokra merged commit f7ea163 into canary Jan 8, 2026
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sokra commented Jan 8, 2026

Merge activity

@sokra sokra deleted the sokra/fs-no-blocking-task branch January 8, 2026 09:46
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