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diff --git a/tests/performance/generate-expectations.js b/tests/performance/generate-expectations.js
new file mode 100644
index 0000000000000000000000000000000000000000..ac28ba4ad36bb8ea7b3aa3e9c6f79c6328fb362d
--- /dev/null
+++ b/tests/performance/generate-expectations.js
@@ -0,0 +1,19 @@
+const request = require("request-promise");
+const thumbnails = require("./thumbnails.json");
+const fs = require("fs");
+
+const target = "http://localhost:8001";
+
+async function download(mxc) {
+ console.log("Downloading " + mxc);
+ const result = await request(`${target}/_matrix/media/r0/thumbnail/${mxc.substring("mxc://".length)}?width=800&height=600&method=crop&animated=false`, {encoding: null});
+ fs.writeFileSync("expected_thumbnails/" + mxc.substring("mxc://".length).replace(/\//g, '_') + ".png", result);
+}
+
+console.log("Downloading thumbnails...");
+const promises = [];
+for (const thumbnailMxc of Object.keys(thumbnails)) {
+ promises.push(download(thumbnailMxc));
+}
+
+Promise.all(promises).then(() => console.log("Done!"));
diff --git a/tests/performance/index.js b/tests/performance/index.js
new file mode 100644
index 0000000000000000000000000000000000000000..5fd964d43c59b1bd41b2e4383f55c802c93f12ef
--- /dev/null
+++ b/tests/performance/index.js
@@ -0,0 +1,64 @@
+const request = require("request-promise");
+const thumbnails = require("./thumbnails.json");
+const fs = require("fs");
+const mkdirp = require("mkdirp");
+
+const target = "http://localhost:8001";
+
+const requestTimes = [];
+let failed = 0;
+let corrupted = 0;
+
+async function thumbnailDefaults(mxc) {
+ const start = (new Date()).getTime();
+
+ const result = Buffer.from(await request(`${target}/_matrix/media/r0/thumbnail/${mxc.substring("mxc://".length)}?width=800&height=600&method=crop&animated=false`, {encoding: null}));
+ const expectedResult = fs.readFileSync("expected_thumbnails/" + mxc.substring("mxc://".length).replace(/\//, '_') + ".png");
+
+ if (Buffer.compare(result, expectedResult) !== 0) {
+ console.warn("Unexpected corruption!");
+ corrupted++;
+ }
+
+ return (new Date()).getTime() - start;
+}
+
+function handleThumbnail(mxc) {
+ console.log("Starting download of " + mxc);
+ return thumbnailDefaults(mxc).then(t => requestTimes.push(t)).catch(() => failed++);
+}
+
+const promises = [];
+for (const thumbnailMxc of Object.keys(thumbnails)) {
+ for (let i = 0; i < thumbnails[thumbnailMxc]; i++) {
+ promises.push(handleThumbnail(thumbnailMxc));
+ }
+}
+
+console.log("Waiting for results...");
+Promise.all(promises).then(() => {
+ requestTimes.sort();
+
+ let average = 0;
+ for (const i of requestTimes) average += i;
+ average = average / requestTimes.length;
+
+ const obj = {
+ failed,
+ corrupted,
+ requestTimes,
+ min: Math.min(...requestTimes),
+ max: Math.max(...requestTimes),
+ average,
+ median: requestTimes[Math.floor(requestTimes.length / 2)],
+ count: requestTimes.length,
+ };
+
+ console.log("Saving report...");
+ mkdirp.sync("reports");
+ fs.writeFileSync(`reports/${(new Date()).getTime()}.json`, JSON.stringify(obj, null, 2));
+
+ delete obj.requestTimes;
+ console.log(obj);
+ console.log("Done!");
+});
diff --git a/tests/performance/package-lock.json b/tests/performance/package-lock.json
new file mode 100644
index 0000000000000000000000000000000000000000..99e0fc92311fab1ee0b1cfc5ec7b30cc4c05e1e7
--- /dev/null
+++ b/tests/performance/package-lock.json
@@ -0,0 +1,393 @@
+{
+ "name": "performance",
+ "version": "1.0.0",
+ "lockfileVersion": 1,
+ "requires": true,
+ "dependencies": {
+ "ajv": {
+ "version": "6.10.0",
+ "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
+ "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
+ "requires": {
+ "fast-deep-equal": "^2.0.1",
+ "fast-json-stable-stringify": "^2.0.0",
+ "json-schema-traverse": "^0.4.1",
+ "uri-js": "^4.2.2"
+ }
+ },
+ "asn1": {
+ "version": "0.2.4",
+ "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
+ "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+ "requires": {
+ "safer-buffer": "~2.1.0"
+ }
+ },
+ "assert-plus": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+ "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
+ },
+ "asynckit": {
+ "version": "0.4.0",
+ "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+ "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
+ },
+ "aws-sign2": {
+ "version": "0.7.0",
+ "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
+ "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg="
+ },
+ "aws4": {
+ "version": "1.8.0",
+ "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
+ "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ=="
+ },
+ "bcrypt-pbkdf": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
+ "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
+ "requires": {
+ "tweetnacl": "^0.14.3"
+ }
+ },
+ "bluebird": {
+ "version": "3.5.5",
+ "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.5.tgz",
+ "integrity": "sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w=="
+ },
+ "caseless": {
+ "version": "0.12.0",
+ "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
+ "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
+ },
+ "combined-stream": {
+ "version": "1.0.8",
+ "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+ "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+ "requires": {
+ "delayed-stream": "~1.0.0"
+ }
+ },
+ "core-util-is": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
+ "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
+ },
+ "dashdash": {
+ "version": "1.14.1",
+ "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
+ "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
+ "requires": {
+ "assert-plus": "^1.0.0"
+ }
+ },
+ "delayed-stream": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+ "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
+ },
+ "ecc-jsbn": {
+ "version": "0.1.2",
+ "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",
+ "integrity": "sha1-OoOpBOVDUyh4dMVkt1SThoSamMk=",
+ "requires": {
+ "jsbn": "~0.1.0",
+ "safer-buffer": "^2.1.0"
+ }
+ },
+ "extend": {
+ "version": "3.0.2",
+ "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
+ "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="
+ },
+ "extsprintf": {
+ "version": "1.3.0",
+ "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
+ "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
+ },
+ "fast-deep-equal": {
+ "version": "2.0.1",
+ "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
+ "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
+ },
+ "fast-json-stable-stringify": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
+ "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
+ },
+ "forever-agent": {
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+ "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE="
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+ "requires": {
+ "asynckit": "^0.4.0",
+ "combined-stream": "^1.0.6",
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diff --git a/tests/performance/package.json b/tests/performance/package.json
new file mode 100644
index 0000000000000000000000000000000000000000..c9ffeab4717c2bcd95c56e2eaea6d7d8d71419fb
--- /dev/null
+++ b/tests/performance/package.json
@@ -0,0 +1,16 @@
+{
+ "name": "performance",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "author": "",
+ "license": "MIT",
+ "dependencies": {
+ "mkdirp": "^0.5.1",
+ "request": "^2.88.0",
+ "request-promise": "^4.2.4"
+ }
+}
diff --git a/tests/performance/thumbnails.json b/tests/performance/thumbnails.json
new file mode 100644
index 0000000000000000000000000000000000000000..1ed8135a433cce33253111eb960c2e7809ba1b81
--- /dev/null
+++ b/tests/performance/thumbnails.json
@@ -0,0 +1,30 @@
+{
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