diff --git a/.github/workflows/memtest.yml b/.github/workflows/memtest.yml
index 212d45810..20bce626c 100644
--- a/.github/workflows/memtest.yml
+++ b/.github/workflows/memtest.yml
@@ -26,6 +26,7 @@ jobs:
           - opentelemetry
           - programmatic-batching
           - logger
+          - execution-cancellation
         e2e_runner:
           - node
           # - bun TODO: get memory snaps and heap sampling for bun. is it even necessary?
diff --git a/e2e/execution-cancellation/execution-cancellation.memtest.ts b/e2e/execution-cancellation/execution-cancellation.memtest.ts
new file mode 100644
index 000000000..180d80530
--- /dev/null
+++ b/e2e/execution-cancellation/execution-cancellation.memtest.ts
@@ -0,0 +1,56 @@
+import path from 'path';
+import { createExampleSetup, createTenv } from '@internal/e2e';
+import { memtest } from '@internal/perf/memtest';
+import { spawn, waitForPort } from '@internal/proc';
+import { getAvailablePort } from '@internal/testing';
+import { describe } from 'vitest';
+
+const cwd = __dirname;
+
+const { gateway } = createTenv(cwd);
+const { supergraph, query } = createExampleSetup(cwd);
+
+describe('Hive Gateway', () => {
+  memtest(
+    {
+      cwd,
+      query,
+    },
+    async () =>
+      gateway({
+        supergraph: await supergraph(),
+      }),
+  );
+});
+
+describe('Yoga', () => {
+  memtest(
+    {
+      cwd,
+      query: '{hello}',
+    },
+    async () => {
+      const port = await getAvailablePort();
+      const [proc] = await spawn(
+        { cwd, env: { PORT: port } },
+        'node',
+        '--inspect-port=0', // necessary for perf inspector
+        '--import',
+        'tsx',
+        path.join(cwd, 'yoga-server.ts'),
+      );
+
+      await waitForPort({
+        port,
+        protocol: 'http',
+        signal: new AbortController().signal,
+      });
+
+      return {
+        ...proc,
+        port,
+        protocol: 'http',
+      };
+    },
+  );
+});
diff --git a/e2e/execution-cancellation/gateway.config.ts b/e2e/execution-cancellation/gateway.config.ts
new file mode 100644
index 000000000..7d606b129
--- /dev/null
+++ b/e2e/execution-cancellation/gateway.config.ts
@@ -0,0 +1,5 @@
+import { defineConfig } from '@graphql-hive/gateway';
+
+export const gatewayConfig = defineConfig({
+  executionCancellation: true,
+});
diff --git a/e2e/execution-cancellation/package.json b/e2e/execution-cancellation/package.json
new file mode 100644
index 000000000..0cdcba9b6
--- /dev/null
+++ b/e2e/execution-cancellation/package.json
@@ -0,0 +1,4 @@
+{
+  "name": "@e2e/execution-cancellation",
+  "private": true
+}
diff --git a/e2e/execution-cancellation/yoga-server.ts b/e2e/execution-cancellation/yoga-server.ts
new file mode 100644
index 000000000..34a60e0e6
--- /dev/null
+++ b/e2e/execution-cancellation/yoga-server.ts
@@ -0,0 +1,33 @@
+import { createServer } from 'node:http';
+import {
+  createSchema,
+  createYoga,
+  useExecutionCancellation,
+} from 'graphql-yoga';
+
+export const schema = createSchema({
+  typeDefs: /* GraphQL */ `
+    type Query {
+      hello: String
+    }
+  `,
+  resolvers: {
+    Query: {
+      hello: () => 'world',
+    },
+  },
+});
+
+// Create a Yoga instance with a GraphQL schema.
+const yoga = createYoga({
+  schema,
+  plugins: [useExecutionCancellation()],
+});
+
+// Pass it into a server to hook into request handlers.
+const server = createServer(yoga);
+
+// Start the server and you're done!
+server.listen(parseInt(process.env['PORT']!), () => {
+  console.info('Server is running on http://localhost:4000/graphql');
+});
diff --git a/internal/perf/src/graphql-loadtest-script.ts b/internal/perf/src/graphql-loadtest-script.ts
index 46114c935..93e8f5d07 100644
--- a/internal/perf/src/graphql-loadtest-script.ts
+++ b/internal/perf/src/graphql-loadtest-script.ts
@@ -13,7 +13,9 @@ export default function () {
     return test.abort('Environment variable "QUERY" not provided');
   }
 
-  const res = http.post(url, { query });
+  const res = http.post(url, JSON.stringify({ query }), {
+    headers: { 'content-type': 'application/json' },
+  });
 
   if (__ENV['ALLOW_FAILING_REQUESTS']) {
     check(res, {
diff --git a/internal/perf/src/loadtest.ts b/internal/perf/src/loadtest.ts
index 1fe87a7bb..ad94d7f7c 100644
--- a/internal/perf/src/loadtest.ts
+++ b/internal/perf/src/loadtest.ts
@@ -9,6 +9,11 @@ import { connectInspector, Inspector } from './inspector';
 
 export interface LoadtestOptions extends ProcOptions {
   cwd: string;
+  /**
+   * The ID of the loadtest, when running with test, prefer using the task id.
+   * @default Math.random().toString(36).slice(2, 6)
+   */
+  id?: string;
   /** @default 100 */
   vus?: number;
   /** Idling duration before loadtest in milliseconds. */
@@ -139,7 +144,7 @@ export async function loadtest(opts: LoadtestOptions): Promise<{
 
   // we create a random id to make sure the heapsnapshot files are unique and easily distinguishable in the filesystem
   // when running multiple loadtests in parallel. see e2e/opentelemetry memtest as an example
-  const id = Math.random().toString(36).slice(2, 6);
+  const id = opts.id || Math.random().toString(36).slice(2, 6);
 
   // make sure the endpoint works before starting the loadtests
   // the request here matches the request done in loadtest-script.ts or http-loadtest-script.ts
diff --git a/internal/perf/src/memtest.ts b/internal/perf/src/memtest.ts
index 39ef5caf9..edb4705ef 100644
--- a/internal/perf/src/memtest.ts
+++ b/internal/perf/src/memtest.ts
@@ -16,7 +16,8 @@ const __project = path.resolve(__dirname, '..', '..', '..');
 
 const supportedFlags = [
   'short' as const,
-  'cleanheapsnaps' as const,
+  'clean' as const,
+  'keepheapsnaps' as const,
   'noheapsnaps' as const,
   'moreruns' as const,
   'chart' as const,
@@ -28,7 +29,8 @@ const supportedFlags = [
  *
  * {@link supportedFlags Supported flags} are:
  * - `short` Runs the loadtest for `30s` and the calmdown for `10s` instead of the defaults.
- * - `cleanheapsnaps` Remove any existing heap snapshot (`*.heapsnapshot`) files before the test.
+ * - `clean` Remove any existing heap snapshot (`*.heapsnapshot`), allocation profiles (`*.heapprofile`) and charts (`.svg`) files before the test.
+ * - `keepheapsnaps` Keeps the heap snapshots (`*.heapsnapshot`) even if there are no leaks detected.
  * - `noheapsnaps` Disable taking heap snapshots.
  * - `moreruns` Does `10` runs instead of the defaults.
  * - `chart` Writes the memory consumption chart.
@@ -144,10 +146,15 @@ export function memtest(opts: MemtestOptions, setup: () => Promise<Server>) {
         runs,
     },
     async ({ expect, task }) => {
-      if (flags.includes('cleanheapsnaps')) {
+      if (flags.includes('clean')) {
         const filesInCwd = await fs.readdir(cwd, { withFileTypes: true });
         for (const file of filesInCwd) {
-          if (file.isFile() && file.name.endsWith('.heapsnapshot')) {
+          if (
+            file.isFile() &&
+            (file.name.endsWith('.heapsnapshot') ||
+              file.name.endsWith('.heapprofile') ||
+              file.name.endsWith('.svg'))
+          ) {
             await fs.unlink(path.join(cwd, file.name));
           }
         }
@@ -164,6 +171,7 @@ export function memtest(opts: MemtestOptions, setup: () => Promise<Server>) {
 
       const loadtestResult = await loadtest({
         ...loadtestOpts,
+        id: task.id,
         cwd,
         memorySnapshotWindow,
         takeHeapSnapshots,
@@ -250,10 +258,12 @@ ${loadtestResult.heapSnapshots.map(({ file }, index) => `\t${index + 1}. ${path.
         expect.fail('Expected to diff heap snapshots, but none were taken.');
       }
 
-      // no leak, remove the heap snapshots
-      await Promise.all(
-        loadtestResult.heapSnapshots.map(({ file }) => fs.unlink(file)),
-      );
+      if (!flags.includes('keepheapsnaps')) {
+        // no leak, remove the heap snapshots
+        await Promise.all(
+          loadtestResult.heapSnapshots.map(({ file }) => fs.unlink(file)),
+        );
+      }
     },
   );
 }
diff --git a/yarn.lock b/yarn.lock
index 5eeb470d7..217c53341 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2990,6 +2990,12 @@ __metadata:
   languageName: unknown
   linkType: soft
 
+"@e2e/execution-cancellation@workspace:e2e/execution-cancellation":
+  version: 0.0.0-use.local
+  resolution: "@e2e/execution-cancellation@workspace:e2e/execution-cancellation"
+  languageName: unknown
+  linkType: soft
+
 "@e2e/extra-fields@workspace:e2e/extra-fields":
   version: 0.0.0-use.local
   resolution: "@e2e/extra-fields@workspace:e2e/extra-fields"