AmazonのCPU負荷を劇的に削減！DOM非改変・アフィなし・軽量＆安全設計の高効率ユーザースクリプト。
// ==UserScript==
// @name Amazon CPU Tamer PRO 🧠✨
// @namespace https://github.com/koyasi777/amazon-cpu-tamer-pro
// @version 3.0.1
// @description AmazonのCPU負荷を劇的に削減！DOM非改変・アフィなし・軽量＆安全設計の高効率ユーザースクリプト。
// @author koyasi777
// @match https://www.amazon.com/*
// @match https://www.amazon.co.jp/*
// @match https://www.amazon.co.uk/*
// @match https://www.amazon.es/*
// @match https://www.amazon.fr/*
// @match https://www.amazon.de/*
// @match https://www.amazon.it/*
// @exclude https://www.amazon.com/cart/*
// @exclude https://www.amazon.co.jp/cart/*
// @exclude https://www.amazon.co.uk/cart/*
// @exclude https://www.amazon.es/cart/*
// @exclude https://www.amazon.fr/cart/*
// @exclude https://www.amazon.de/cart/*
// @exclude https://www.amazon.it/cart/*
// @exclude https://www.amazon.com/buy/*
// @exclude https://www.amazon.co.jp/buy/*
// @exclude https://www.amazon.co.uk/buy/*
// @exclude https://www.amazon.es/buy/*
// @exclude https://www.amazon.fr/buy/*
// @exclude https://www.amazon.de/buy/*
// @exclude https://www.amazon.it/buy/*
// @grant none
// @license MIT
// @homepageURL https://github.com/koyasi777/amazon-cpu-tamer-pro
// @supportURL https://github.com/koyasi777/amazon-cpu-tamer-pro/issues
// @run-at document-start
// @icon https://www.amazon.co.jp/favicon.ico
// ==/UserScript==
(function () {
'use strict';
const SCRIPT_ID = 'AmazonCpuTamerPRO';
const FOREGROUND_INTERVAL = 125;
const BACKGROUND_INTERVAL = 60000;
const MIN_IFRAME_TIMEOUT = 1000;
const safeWindow = (typeof unsafeWindow !== 'undefined') ? unsafeWindow : window;
let isUserActive = true;
let isTabHidden = document.hidden;
document.addEventListener('visibilitychange', () => {
isTabHidden = document.hidden;
});
document.addEventListener('keydown', () => isUserActive = true, true);
document.addEventListener('click', () => isUserActive = true, true);
// Task bundler (Top window only)
if (safeWindow === safeWindow.top) {
const taskMap = new Map();
let taskIdCounter = 0;
const scheduleIdle = (fn) => {
if ('requestIdleCallback' in window) {
requestIdleCallback(fn, { timeout: 500 });
} else {
requestAnimationFrame(fn);
}
};
const originalSetInterval = safeWindow.setInterval.bind(safeWindow);
const originalClearInterval = safeWindow.clearInterval.bind(safeWindow);
safeWindow.setInterval = function (fn, delay, ...args) {
const id = taskIdCounter++;
taskMap.set(id, {
fn: () => fn(...args),
interval: delay,
lastExecution: 0
});
return id;
};
safeWindow.clearInterval = function (id) {
taskMap.delete(id);
};
const bundledLoop = () => {
const now = Date.now();
const intervalLimit = isTabHidden ? BACKGROUND_INTERVAL : FOREGROUND_INTERVAL;
if (!isUserActive && isTabHidden) {
scheduleIdle(bundledLoop);
return;
}
for (const [id, task] of taskMap.entries()) {
if (now - task.lastExecution >= task.interval) {
try {
task.fn();
} catch (e) {
console.warn(`[${SCRIPT_ID}] Error in interval task:`, e);
}
task.lastExecution = now;
}
}
isUserActive = false;
scheduleIdle(bundledLoop);
};
scheduleIdle(bundledLoop);
}
// Timeout throttler for iframes
if (safeWindow !== safeWindow.top) {
const originalSetTimeout = safeWindow.setTimeout.bind(safeWindow);
safeWindow.setTimeout = function (fn, timeout, ...args) {
if (document.hidden) return;
const adjusted = Math.max(timeout, MIN_IFRAME_TIMEOUT);
return originalSetTimeout(fn, adjusted, ...args);
};
}
// Optional: URL cleaner to remove tracking parameters
if (safeWindow === safeWindow.top) {
const cleanTrackingParams = () => {
const url = new URL(location.href);
const paramsToRemove = ['utm_source', 'utm_medium', 'utm_campaign', 'ref', 'tag'];
let modified = false;
for (const param of paramsToRemove) {
if (url.searchParams.has(param)) {
url.searchParams.delete(param);
modified = true;
}
}
if (modified) {
history.replaceState(null, document.title, url.toString());
console.info(`[${SCRIPT_ID}] Tracking parameters removed`);
}
};
document.addEventListener('DOMContentLoaded', cleanTrackingParams, { once: true });
}
})();