1% perf improvements on Linuxjarred/linux

28 files changed, 170 insertions, 118 deletions

diff --git a/Makefile b/Makefile
index bd3ebe0c7..71fbe1394 100644
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,7 @@ BUN_BUILD_TAG := bun-v$(PACKAGE_JSON_VERSION)
 CC := clang
 CXX := clang++
 
+
 bun: vendor build-obj bun-link-lld-release
 
 
@@ -48,7 +49,11 @@ sign-macos-x64:
 sign-macos-aarch64: 
 	gon sign.macos-aarch64.json
 
-release-macos: all-js build-obj jsc-bindings-mac bun-link-lld-release
+release: all-js build-obj jsc-bindings-mac bun-link-lld-release
+
+release-linux: release strip-debug
+
+
 
 all-js: runtime_js fallback_decoder bun_error node-fallbacks
 
@@ -299,11 +304,14 @@ BUN_LLD_FLAGS += -lstdc++fs \
 		-pthread \
 		-ldl \
 		-lc \
-		-fuse-ld=lld \
 		-Wl,-z,now \
 		-Wl,--as-needed \
 		-Wl,-z,stack-size=12800000 \
-		-Wl,-z,notext
+		-Wl,-z,notext \
+		-ffunction-sections \
+		-fdata-sections \
+		-Wl,--gc-sections \
+		-fuse-ld=lld
 endif
 		
 
@@ -312,12 +320,10 @@ mimalloc:
 
 bun-link-lld-debug:
 	$(CXX) $(BUN_LLD_FLAGS) \
+		-g \
 		$(DEBUG_BIN)/bun-debug.o \
 		-W \
 		-o $(DEBUG_BIN)/bun-debug \
-		-march=native \
-		-flto
-		
 
 bun-link-lld-release:
 	$(CXX) $(BUN_LLD_FLAGS) \
@@ -326,8 +332,7 @@ bun-link-lld-release:
 		-W \
 		-flto \
 		-ftls-model=initial-exec \
-		-march=native \
-		-O3
+		-O3 \
 	rm $(BIN_DIR)/bun.o
 
 bun-link-lld-release-aarch64:
diff --git a/build.zig b/build.zig
index fcd4b4b1d..04c9f9231 100644
--- a/build.zig
+++ b/build.zig
@@ -280,7 +280,7 @@ pub fn build(b: *std.build.Builder) !void {
 
         var obj_step = b.step("obj", "Build Bun as a .o file");
         var obj = b.addObject(bun_executable_name, exe.root_src.?.path);
-        obj.bundle_compiler_rt = true;
+        obj.setTarget(target);
         addPicoHTTP(obj, false);
         obj.addPackage(.{
             .name = "clap",
@@ -293,7 +293,15 @@ pub fn build(b: *std.build.Builder) !void {
         obj.linkLibC();
         obj.linkLibCpp();
 
-        obj.setTarget(target);
+        obj.bundle_compiler_rt = true;
+
+      if (target.getOsTag() == .linux) {
+        // obj.want_lto = tar;
+        obj.link_emit_relocs = true;
+        obj.link_function_sections = true;
+      }
+
+   
     } else {
         b.default_step.dependOn(&exe.step);
     }
diff --git a/examples/hello-next/styles/Home.module.css b/examples/hello-next/styles/Home.module.css
index 4a04160d0..539fb3eaf 100644
--- a/examples/hello-next/styles/Home.module.css
+++ b/examples/hello-next/styles/Home.module.css
@@ -1,4 +1,5 @@
 @import url("./2.css");
+
 .container {
   min-height: 99vh;
   padding: 0 0.5rem;
@@ -9,7 +10,6 @@
   height: 100vh;
 }
 
-
 .main {
   padding: 5rem 0;
   flex: 1;
diff --git a/integration/snapshots/array-args-with-default-values.hmr.js b/integration/snapshots/array-args-with-default-values.hmr.js
index aae356eed..f7b40203e 100644
--- a/integration/snapshots/array-args-with-default-values.hmr.js
+++ b/integration/snapshots/array-args-with-default-values.hmr.js
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(3474597122, "array-args-with-default-values.js"), exports = hmr.exports;
+var hmr = new HMR(186686614, "array-args-with-default-values.js"), exports = hmr.exports;
 (hmr._load = function() {
   var lines;
   const data = () => lines.map(([a = null, b = null, c = null, d = null]) => ({
diff --git a/integration/snapshots/bundled-entry-point.hmr.js b/integration/snapshots/bundled-entry-point.hmr.js
index f3008327a..828236c19 100644
--- a/integration/snapshots/bundled-entry-point.hmr.js
+++ b/integration/snapshots/bundled-entry-point.hmr.js
@@ -7,10 +7,10 @@ __HMRModule as HMR
 import {
 __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
-import * as $bbcd215f from "http://localhost:8080/node_modules/react/index.js";
+import * as $2ed51059 from "http://localhost:8080/node_modules/react/index.js";
 Bun.activate(false);
 
-var hmr = new HMR(3012834585, "bundled-entry-point.js"), exports = hmr.exports;
+var hmr = new HMR(2355916096, "bundled-entry-point.js"), exports = hmr.exports;
 (hmr._load = function() {
   var hello = null ?? "world";
   function test() {
diff --git a/integration/snapshots/bundled-entry-point.js b/integration/snapshots/bundled-entry-point.js
index 04f92d63a..e7816245b 100644
--- a/integration/snapshots/bundled-entry-point.js
+++ b/integration/snapshots/bundled-entry-point.js
@@ -1,7 +1,7 @@
 import {
 __require as require
 } from "http://localhost:8080/__runtime.js";
-import * as $bbcd215f from "http://localhost:8080/node_modules/react/index.js";
+import * as $2ed51059 from "http://localhost:8080/node_modules/react/index.js";
 var hello = null ?? "world";
 
 export function test() {
diff --git a/integration/snapshots/code-simplification-neql-define.hmr.js b/integration/snapshots/code-simplification-neql-define.hmr.js
index 1e517c533..7a1c66be5 100644
--- a/integration/snapshots/code-simplification-neql-define.hmr.js
+++ b/integration/snapshots/code-simplification-neql-define.hmr.js
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(726376257, "code-simplification-neql-define.js"), exports = hmr.exports;
+var hmr = new HMR(1142302163, "code-simplification-neql-define.js"), exports = hmr.exports;
 (hmr._load = function() {
   var testFailed = false;
   const invariant = () => {
diff --git a/integration/snapshots/export.hmr.js b/integration/snapshots/export.hmr.js
index 6088ffd77..04821c18e 100644
--- a/integration/snapshots/export.hmr.js
+++ b/integration/snapshots/export.hmr.js
@@ -8,7 +8,7 @@ import what from "http://localhost:8080/_auth.js";
 import * as where from "http://localhost:8080/_auth.js";
 Bun.activate(false);
 
-var hmr = new HMR(1879780259, "export.js"), exports = hmr.exports;
+var hmr = new HMR(4033101122, "export.js"), exports = hmr.exports;
 (hmr._load = function() {
   var yoyoyo = "yoyoyo";
   function hey() {
diff --git a/integration/snapshots/forbid-in-is-correct.hmr.js b/integration/snapshots/forbid-in-is-correct.hmr.js
index bd20b7b42..979a6be64 100644
--- a/integration/snapshots/forbid-in-is-correct.hmr.js
+++ b/integration/snapshots/forbid-in-is-correct.hmr.js
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(346837007, "forbid-in-is-correct.js"), exports = hmr.exports;
+var hmr = new HMR(2952402969, "forbid-in-is-correct.js"), exports = hmr.exports;
 (hmr._load = function() {
   var foo = () => {
     var D = (i, r) => () => (r || i((r = {exports: {} }).exports, r), r.exports);
diff --git a/integration/snapshots/global-is-remapped-to-globalThis.hmr.js b/integration/snapshots/global-is-remapped-to-globalThis.hmr.js
index a5a3723a6..aa9e9d8b5 100644
--- a/integration/snapshots/global-is-remapped-to-globalThis.hmr.js
+++ b/integration/snapshots/global-is-remapped-to-globalThis.hmr.js
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(713665787, "global-is-remapped-to-globalThis.js"), exports = hmr.exports;
+var hmr = new HMR(2277846108, "global-is-remapped-to-globalThis.js"), exports = hmr.exports;
 (hmr._load = function() {
   function test() {
     console.assert(globalThis === globalThis);
diff --git a/integration/snapshots/lodash-regexp.hmr.js b/integration/snapshots/lodash-regexp.hmr.js
index cd9ca40f7..768ad9b0d 100644
--- a/integration/snapshots/lodash-regexp.hmr.js
+++ b/integration/snapshots/lodash-regexp.hmr.js
@@ -7,11 +7,11 @@ __HMRModule as HMR
 import {
 __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
-import * as $60f52dc2 from "http://localhost:8080/node_modules/lodash/lodash.js";
-var { shuffle} = require($60f52dc2);
+import * as $cbd4e379 from "http://localhost:8080/node_modules/lodash/lodash.js";
+var { shuffle} = require($cbd4e379);
 Bun.activate(false);
 
-var hmr = new HMR(2158065009, "lodash-regexp.js"), exports = hmr.exports;
+var hmr = new HMR(1678450382, "lodash-regexp.js"), exports = hmr.exports;
 (hmr._load = function() {
   function test() {
     const foo = [1, 2, 3, 4, 6];
diff --git a/integration/snapshots/lodash-regexp.js b/integration/snapshots/lodash-regexp.js
index 6e0e6190a..30dcab4e5 100644
--- a/integration/snapshots/lodash-regexp.js
+++ b/integration/snapshots/lodash-regexp.js
@@ -1,8 +1,8 @@
 import {
 __require as require
 } from "http://localhost:8080/__runtime.js";
-import * as $60f52dc2 from "http://localhost:8080/node_modules/lodash/lodash.js";
-var { shuffle} = require($60f52dc2);
+import * as $cbd4e379 from "http://localhost:8080/node_modules/lodash/lodash.js";
+var { shuffle} = require($cbd4e379);
 export function test() {
   const foo = [1, 2, 3, 4, 6];
 
diff --git a/integration/snapshots/multiple-imports.hmr.js b/integration/snapshots/multiple-imports.hmr.js
index c4a089fd9..df44a70df 100644
--- a/integration/snapshots/multiple-imports.hmr.js
+++ b/integration/snapshots/multiple-imports.hmr.js
@@ -8,20 +8,20 @@ import {
 __HMRModule as HMR
 } from "http://localhost:8080/__runtime.js";
 import * as JSX from "http://localhost:8080/node_modules/react/jsx-dev-runtime.js";
-import * as $bbcd215f from "http://localhost:8080/node_modules/react/index.js";
-var JSXClassic = require($bbcd215f);
+import * as $2ed51059 from "http://localhost:8080/node_modules/react/index.js";
+var JSXClassic = require($2ed51059);
 var jsx = require(JSX).jsxDEV, JSXFrag = require(JSXClassic).Fragment;
 
-var { default: React} = require($bbcd215f);
-var { default: React2} = require($bbcd215f);
+var { default: React} = require($2ed51059);
+var { default: React2} = require($2ed51059);
 Bun.activate(false);
 
-var hmr = new HMR(2165509932, "multiple-imports.js"), exports = hmr.exports;
+var hmr = new HMR(1572769260, "multiple-imports.js"), exports = hmr.exports;
 (hmr._load = function() {
   const bacon = React;
   const bacon2 = jsx(JSXFrag, {
     children: ["hello"]
-  }, undefined, true, {}, this);
+  }, undefined, true, undefined, this);
   function test() {
     console.assert(bacon === React);
     console.assert(bacon === React2);
diff --git a/integration/snapshots/multiple-imports.js b/integration/snapshots/multiple-imports.js
index dd2c11d93..f4c274567 100644
--- a/integration/snapshots/multiple-imports.js
+++ b/integration/snapshots/multiple-imports.js
@@ -2,17 +2,17 @@ import {
 __require as require
 } from "http://localhost:8080/__runtime.js";
 import * as JSX from "http://localhost:8080/node_modules/react/jsx-dev-runtime.js";
-import * as $bbcd215f from "http://localhost:8080/node_modules/react/index.js";
-var JSXClassic = require($bbcd215f);
+import * as $2ed51059 from "http://localhost:8080/node_modules/react/index.js";
+var JSXClassic = require($2ed51059);
 var jsx = require(JSX).jsxDEV, JSXFrag = require(JSXClassic).Fragment;
 
-var { default: React} = require($bbcd215f);
-var { default: React2} = require($bbcd215f);
+var { default: React} = require($2ed51059);
+var { default: React2} = require($2ed51059);
 const bacon = React;
 
 const bacon2 = jsx(JSXFrag, {
   children: ["hello"]
-}, undefined, true, {}, this);
+}, undefined, true, undefined, this);
 export function test() {
   console.assert(bacon === React);
   console.assert(bacon === React2);
diff --git a/integration/snapshots/package-json-exports/index.hmr.js b/integration/snapshots/package-json-exports/index.hmr.js
index 508dd63ee..26c6c0592 100644
--- a/integration/snapshots/package-json-exports/index.hmr.js
+++ b/integration/snapshots/package-json-exports/index.hmr.js
@@ -7,15 +7,15 @@ __HMRModule as HMR
 import {
 __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
-import * as $4068f25b from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/index.js";
-var InexactRoot = require($4068f25b);
-import * as $d2a171d2 from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/dir/file.js";
-var InexactFile = require($d2a171d2);
-import * as $522c6d1f from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/foo.js";
-var ExactFile = require($522c6d1f);
+import * as $cc5b5b4d from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/index.js";
+var InexactRoot = require($cc5b5b4d);
+import * as $3a1d0f08 from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/dir/file.js";
+var InexactFile = require($3a1d0f08);
+import * as $6b803e42 from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/foo.js";
+var ExactFile = require($6b803e42);
 Bun.activate(false);
 
-var hmr = new HMR(1953708113, "package-json-exports/index.js"), exports = hmr.exports;
+var hmr = new HMR(3722745821, "package-json-exports/index.js"), exports = hmr.exports;
 (hmr._load = function() {
   async function test() {
     console.assert(InexactRoot.target === "browser");
diff --git a/integration/snapshots/package-json-exports/index.js b/integration/snapshots/package-json-exports/index.js
index 1b260c7ea..45e3dcaf5 100644
--- a/integration/snapshots/package-json-exports/index.js
+++ b/integration/snapshots/package-json-exports/index.js
@@ -1,12 +1,12 @@
 import {
 __require as require
 } from "http://localhost:8080/__runtime.js";
-import * as $4068f25b from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/index.js";
-var InexactRoot = require($4068f25b);
-import * as $d2a171d2 from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/dir/file.js";
-var InexactFile = require($d2a171d2);
-import * as $522c6d1f from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/foo.js";
-var ExactFile = require($522c6d1f);
+import * as $cc5b5b4d from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/index.js";
+var InexactRoot = require($cc5b5b4d);
+import * as $3a1d0f08 from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/dir/file.js";
+var InexactFile = require($3a1d0f08);
+import * as $6b803e42 from "http://localhost:8080/package-json-exports/node_modules/inexact/browser/foo.js";
+var ExactFile = require($6b803e42);
 export async function test() {
   console.assert(InexactRoot.target === "browser");
 
diff --git a/integration/snapshots/spread_with_key.hmr.tsx b/integration/snapshots/spread_with_key.hmr.tsx
index 0209cb3e2..457d61a79 100644
--- a/integration/snapshots/spread_with_key.hmr.tsx
+++ b/integration/snapshots/spread_with_key.hmr.tsx
@@ -8,14 +8,14 @@ import {
 __HMRModule as HMR
 } from "http://localhost:8080/__runtime.js";
 import * as JSX from "http://localhost:8080/node_modules/react/jsx-dev-runtime.js";
-import * as $bbcd215f from "http://localhost:8080/node_modules/react/index.js";
-var JSXClassic = require($bbcd215f);
+import * as $2ed51059 from "http://localhost:8080/node_modules/react/index.js";
+var JSXClassic = require($2ed51059);
 var jsx = require(JSX).jsxDEV, jsxEl = require(JSXClassic).createElement;
 
-var { default: React} = require($bbcd215f);
+var { default: React} = require($2ed51059);
 Bun.activate(false);
 
-var hmr = new HMR(2717584935, "spread_with_key.tsx"), exports = hmr.exports;
+var hmr = new HMR(263168651, "spread_with_key.tsx"), exports = hmr.exports;
 (hmr._load = function() {
   function SpreadWithTheKey({
     className
@@ -31,7 +31,7 @@ var hmr = new HMR(2717584935, "spread_with_key.tsx"), exports = hmr.exports;
   function test() {
     console.assert(React.isValidElement(jsx(SpreadWithTheKey, {
       className: "foo"
-    }, undefined, true, {}, this)));
+    }, undefined, true, undefined, this)));
     return testDone(import.meta.url);
   }
   hmr.exportAll({
diff --git a/integration/snapshots/spread_with_key.tsx b/integration/snapshots/spread_with_key.tsx
index f6cd64c31..b57a92a00 100644
--- a/integration/snapshots/spread_with_key.tsx
+++ b/integration/snapshots/spread_with_key.tsx
@@ -2,11 +2,11 @@ import {
 __require as require
 } from "http://localhost:8080/__runtime.js";
 import * as JSX from "http://localhost:8080/node_modules/react/jsx-dev-runtime.js";
-import * as $bbcd215f from "http://localhost:8080/node_modules/react/index.js";
-var JSXClassic = require($bbcd215f);
+import * as $2ed51059 from "http://localhost:8080/node_modules/react/index.js";
+var JSXClassic = require($2ed51059);
 var jsx = require(JSX).jsxDEV, jsxEl = require(JSXClassic).createElement;
 
-var { default: React} = require($bbcd215f);
+var { default: React} = require($2ed51059);
 export function SpreadWithTheKey({
   className
 }) {
@@ -23,6 +23,6 @@ export function SpreadWithTheKey({
 export function test() {
   console.assert(React.isValidElement(jsx(SpreadWithTheKey, {
     className: "foo"
-  }, undefined, true, {}, this)));
+  }, undefined, true, undefined, this)));
   return testDone(import.meta.url);
 }
diff --git a/integration/snapshots/string-escapes.hmr.js b/integration/snapshots/string-escapes.hmr.js
index 9231cb6cf..bebb37923 100644
--- a/integration/snapshots/string-escapes.hmr.js
+++ b/integration/snapshots/string-escapes.hmr.js
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(2482749838, "string-escapes.js"), exports = hmr.exports;
+var hmr = new HMR(2657253006, "string-escapes.js"), exports = hmr.exports;
 (hmr._load = function() {
   var tab = "\t";
   var シ = "wow";
diff --git a/integration/snapshots/styledcomponents-output.hmr.js b/integration/snapshots/styledcomponents-output.hmr.js
index f3743d4a3..c50113fd4 100644
--- a/integration/snapshots/styledcomponents-output.hmr.js
+++ b/integration/snapshots/styledcomponents-output.hmr.js
@@ -10,15 +10,15 @@ __HMRModule as HMR
 import * as JSX from "http://localhost:8080/node_modules/react/jsx-dev-runtime.js";
 var jsx = require(JSX).jsxDEV;
 
-import * as $d4051a2e from "http://localhost:8080/node_modules/styled-components/dist/styled-components.browser.esm.js";
-var { default: styled} = require($d4051a2e);
-import * as $bbcd215f from "http://localhost:8080/node_modules/react/index.js";
-var { default: React} = require($bbcd215f);
-import * as $5b3cea55 from "http://localhost:8080/node_modules/react-dom/index.js";
-var { default: ReactDOM} = require($5b3cea55);
+import * as $ab83b9cf from "http://localhost:8080/node_modules/styled-components/dist/styled-components.browser.esm.js";
+var { default: styled} = require($ab83b9cf);
+import * as $2ed51059 from "http://localhost:8080/node_modules/react/index.js";
+var { default: React} = require($2ed51059);
+import * as $a259fa9b from "http://localhost:8080/node_modules/react-dom/index.js";
+var { default: ReactDOM} = require($a259fa9b);
 Bun.activate(false);
 
-var hmr = new HMR(1290604342, "styledcomponents-output.js"), exports = hmr.exports;
+var hmr = new HMR(2744898121, "styledcomponents-output.js"), exports = hmr.exports;
 (hmr._load = function() {
   const ErrorScreenRoot = styled.div`
   font-family: "Muli", -apple-system, BlinkMacSystemFont, Helvetica, Arial,
@@ -54,7 +54,7 @@ var hmr = new HMR(1290604342, "styledcomponents-output.js"), exports = hmr.expor
     ReactDOM.render(jsx(ErrorScreenRoot, {
       id: "error-el",
       children: ["The react child should have this text"]
-    }, undefined, true, {}, this), reactEl);
+    }, undefined, true, undefined, this), reactEl);
     const style = document.querySelector("style[data-styled]");
     console.assert(style, "style tag should exist");
     console.assert(style.textContent.split("").every((a) => a.codePointAt(0) < 128), "style tag should not contain invalid unicode codepoints");
diff --git a/integration/snapshots/styledcomponents-output.js b/integration/snapshots/styledcomponents-output.js
index 54464dc9a..8a0e25280 100644
--- a/integration/snapshots/styledcomponents-output.js
+++ b/integration/snapshots/styledcomponents-output.js
@@ -4,12 +4,12 @@ __require as require
 import * as JSX from "http://localhost:8080/node_modules/react/jsx-dev-runtime.js";
 var jsx = require(JSX).jsxDEV;
 
-import * as $d4051a2e from "http://localhost:8080/node_modules/styled-components/dist/styled-components.browser.esm.js";
-var { default: styled} = require($d4051a2e);
-import * as $bbcd215f from "http://localhost:8080/node_modules/react/index.js";
-var { default: React} = require($bbcd215f);
-import * as $5b3cea55 from "http://localhost:8080/node_modules/react-dom/index.js";
-var { default: ReactDOM} = require($5b3cea55);
+import * as $ab83b9cf from "http://localhost:8080/node_modules/styled-components/dist/styled-components.browser.esm.js";
+var { default: styled} = require($ab83b9cf);
+import * as $2ed51059 from "http://localhost:8080/node_modules/react/index.js";
+var { default: React} = require($2ed51059);
+import * as $a259fa9b from "http://localhost:8080/node_modules/react-dom/index.js";
+var { default: ReactDOM} = require($a259fa9b);
 const ErrorScreenRoot = styled.div`
   font-family: "Muli", -apple-system, BlinkMacSystemFont, Helvetica, Arial,
     sans-serif;
@@ -45,7 +45,7 @@ export function test() {
   ReactDOM.render(jsx(ErrorScreenRoot, {
     id: "error-el",
     children: ["The react child should have this text"]
-  }, undefined, true, {}, this), reactEl);
+  }, undefined, true, undefined, this), reactEl);
   const style = document.querySelector("style[data-styled]");
   console.assert(style, "style tag should exist");
   console.assert(style.textContent.split("").every((a) => a.codePointAt(0) < 128), "style tag should not contain invalid unicode codepoints");
diff --git a/integration/snapshots/ts-fallback-rewrite-works.hmr.js b/integration/snapshots/ts-fallback-rewrite-works.hmr.js
index e728c5f14..6703d08a1 100644
--- a/integration/snapshots/ts-fallback-rewrite-works.hmr.js
+++ b/integration/snapshots/ts-fallback-rewrite-works.hmr.js
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(421762902, "ts-fallback-rewrite-works.ts"), exports = hmr.exports;
+var hmr = new HMR(631080924, "ts-fallback-rewrite-works.ts"), exports = hmr.exports;
 (hmr._load = function() {
   function test() {
     return testDone(import.meta.url);
diff --git a/integration/snapshots/tsx-fallback-rewrite-works.hmr.js b/integration/snapshots/tsx-fallback-rewrite-works.hmr.js
index 3f2f754e2..85b864563 100644
--- a/integration/snapshots/tsx-fallback-rewrite-works.hmr.js
+++ b/integration/snapshots/tsx-fallback-rewrite-works.hmr.js
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(2117426367, "tsx-fallback-rewrite-works.tsx"), exports = hmr.exports;
+var hmr = new HMR(2958250497, "tsx-fallback-rewrite-works.tsx"), exports = hmr.exports;
 (hmr._load = function() {
   function test() {
     return testDone(import.meta.url);
diff --git a/integration/snapshots/type-only-imports.hmr.ts b/integration/snapshots/type-only-imports.hmr.ts
index 84740d0d9..e36667ddf 100644
--- a/integration/snapshots/type-only-imports.hmr.ts
+++ b/integration/snapshots/type-only-imports.hmr.ts
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(650094581, "type-only-imports.ts"), exports = hmr.exports;
+var hmr = new HMR(2365801153, "type-only-imports.ts"), exports = hmr.exports;
 (hmr._load = function() {
   var baconator = true;
   var SilentSymbolCollisionsAreOkayInTypeScript = true;
diff --git a/integration/snapshots/unicode-identifiers.hmr.js b/integration/snapshots/unicode-identifiers.hmr.js
index 5d465d559..0452d6849 100644
--- a/integration/snapshots/unicode-identifiers.hmr.js
+++ b/integration/snapshots/unicode-identifiers.hmr.js
@@ -6,7 +6,7 @@ __HMRClient as Bun
 } from "http://localhost:8080/__runtime.js";
 Bun.activate(false);
 
-var hmr = new HMR(1398361736, "unicode-identifiers.js"), exports = hmr.exports;
+var hmr = new HMR(2975064322, "unicode-identifiers.js"), exports = hmr.exports;
 (hmr._load = function() {
   var ε = 1.0e-06, ε2 = ε * ε, π = Math.PI, τ = 2 * π, τε = τ - ε, halfπ = π / 2, d3_radians = π / 180, d3_degrees = 180 / π;
   function test() {
diff --git a/src/api/demo/styles/Home.module.css b/src/api/demo/styles/Home.module.css
index 35454bb74..a2a622da0 100644
--- a/src/api/demo/styles/Home.module.css
+++ b/src/api/demo/styles/Home.module.css
@@ -119,3 +119,4 @@
     flex-direction: column;
   }
 }
+
diff --git a/src/js_printer.zig b/src/js_printer.zig
index 1419dbef2..956a00e83 100644
--- a/src/js_printer.zig
+++ b/src/js_printer.zig
@@ -3964,9 +3964,45 @@ const FileWriterInternal = struct {
         ctx: *FileWriterInternal,
     ) anyerror!void {
         defer buffer.reset();
-        const result = buffer.toOwnedSliceLeaky();
+        var result_ = buffer.toOwnedSliceLeaky();
+        var result = result_;
+
+        while (result.len > 0) {
+            switch (result.len) {
+                0...4096 => {
+                    const written = try ctx.file.write(result);
+                    if (written == 0 or result.len - written == 0) return;
+                    result = result[written..];
+                },
+                else => {
+                    const first = result.ptr[0..result.len / 3];
+                    const second = result[first.len..][0..first.len];
+                    const remain = first.len+second.len;
+                    const third: []const u8 =  result[remain..];
+
+                    var vecs = [_]std.os.iovec_const{
+                        .{
+                            .iov_base = first.ptr,
+                            .iov_len = first.len,
+                        },
+                        .{
+                            .iov_base = second.ptr,
+                            .iov_len = second.len,
+                        },
+                        .{
+                            .iov_base = third.ptr,
+                            .iov_len = third.len,
+                        },
+                    };
 
-        _ = try ctx.file.writeAll(result);
+                    const written = try std.os.writev(ctx.file.handle, vecs[0..@as(usize, if(third.len > 0) 3 else 2)]);
+                    if (written == 0 or result.len - written == 0) return;
+                    result = result[written..];
+                },
+            }
+        }
+       
+       
     }
 
     pub fn flush(
@@ -4202,14 +4238,20 @@ pub fn printCommonJSThreaded(
         defer lock.unlock();
         lock.lock();
         result.off = @truncate(u32, try getPos(getter));
-        if (comptime isMac) {
+        if (comptime isMac or isLinux) {
             // Don't bother preallocate the file if it's less than 1 KB. Preallocating is potentially two syscalls
             if (printer.writer.written > 1024) {
-                try C.preallocate_file(
-                    getter.handle,
-                    @intCast(std.os.off_t, 0),
-                    @intCast(std.os.off_t, printer.writer.written),
-                );
+                if (comptime isMac) {
+                    try C.preallocate_file(
+                        getter.handle,
+                        @intCast(std.os.off_t, 0),
+                        @intCast(std.os.off_t, printer.writer.written),
+                    );
+                }
+
+                if (comptime isLinux) {
+                    _ = std.os.system.fallocate(getter.handle, 0, @intCast(i64, result.off),  printer.writer.written);
+                }
             }
         }
         try printer.writer.done();
diff --git a/src/watcher.zig b/src/watcher.zig
index f088d31d2..81fb3ab0f 100644
--- a/src/watcher.zig
+++ b/src/watcher.zig
@@ -68,18 +68,17 @@ pub const INotify = struct {
     pub fn watchPath(pathname: [:0]const u8) !EventListIndex {
         std.debug.assert(loaded_inotify);
         const old_count = watch_count.fetchAdd(1, .Release);
-      defer  if (old_count == 0) std.Thread.Futex.wake(&watch_count, 10);
+        defer if (old_count == 0) std.Thread.Futex.wake(&watch_count, 10);
         return std.os.inotify_add_watchZ(inotify_fd, pathname, watch_file_mask);
     }
 
     pub fn watchDir(pathname: [:0]const u8) !EventListIndex {
         std.debug.assert(loaded_inotify);
         const old_count = watch_count.fetchAdd(1, .Release);
-      defer  if (old_count == 0) std.Thread.Futex.wake(&watch_count, 10);
+        defer if (old_count == 0) std.Thread.Futex.wake(&watch_count, 10);
         return std.os.inotify_add_watchZ(inotify_fd, pathname, watch_dir_mask);
     }
 
-
     pub fn unwatch(wd: EventListIndex) void {
         std.debug.assert(loaded_inotify);
         _ = watch_count.fetchSub(1, .Release);
@@ -97,43 +96,40 @@ pub const INotify = struct {
         std.debug.assert(loaded_inotify);
 
         restart: while (true) {
+            std.Thread.Futex.wait(&watch_count,0, null) catch unreachable;
+            const rc = std.os.system.read(
+                inotify_fd,
+                @ptrCast([*]u8, @alignCast(@alignOf([*]u8), &eventlist)),
+                @sizeOf(EventListBuffer),
+            );
 
+            switch (std.os.errno(rc)) {
+                .SUCCESS => {
+                    const len = @intCast(usize, rc);
 
-        std.Thread.Futex.wait(&watch_count,0, null) catch unreachable;
-        const rc = std.os.system.read(
-            inotify_fd,
-            @ptrCast([*]u8, @alignCast(@alignOf([*]u8), &eventlist)),
-            @sizeOf(EventListBuffer),
-        );
-
-        switch (std.os.errno(rc)) {
-            .SUCCESS => {
-                const len = @intCast(usize, rc);
+                    if (len == 0) return &[_]*INotifyEvent{};
 
-                if (len == 0) return &[_]*INotifyEvent{};
+                    var count: u32 = 0;
+                    var i: u32 = 0;
+                    while (i < len) : (i += @sizeOf(INotifyEvent)) {
+                        const event = @ptrCast(*const INotifyEvent, @alignCast(@alignOf(*const INotifyEvent), eventlist[i..][0..@sizeOf(INotifyEvent)]));
+                        if (event.name_len > 0) {
+                            i += event.name_len;
+                        }
 
-                var count: u32 = 0;
-                var i: u32 = 0;
-                while (i < len) : (i += @sizeOf(INotifyEvent)) {
-                    const event = @ptrCast(*const INotifyEvent, @alignCast(@alignOf(*const INotifyEvent), eventlist[i..][0..@sizeOf(INotifyEvent)]));
-                    if (event.name_len > 0) {
-                        i += event.name_len;
+                        eventlist_ptrs[count] = event;
+                        count += 1;
                     }
 
-                    eventlist_ptrs[count] = event;
-                    count += 1;
-                }
-
-                return eventlist_ptrs[0..count];
-            },
-            .AGAIN => continue :restart,
-            .INVAL => return error.ShortRead,
-            .BADF => return error.INotifyFailedToStart,
-
-            else => unreachable,
-        }
+                    return eventlist_ptrs[0..count];
+                },
+                .AGAIN => continue :restart,
+                .INVAL => return error.ShortRead,
+                .BADF => return error.INotifyFailedToStart,
 
-}
+                else => unreachable,
+            }
+    }
         unreachable;
     }