browserfs_benchmark/fs_test.html at main · lumik0/browserfs_benchmark · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <title>FS Benchmark</title>
    <style>
        body { font-family: sans-serif; padding: 20px; }
        .result { margin-top: 20px; }
        table { border-collapse: collapse; width: 100%; max-width: 800px; }
        th, td { border: 1px solid #ccc; padding: 8px; text-align: center; }
        th { background-color: #f4f4f4; }
        .loading { color: gray; }
        #count {
            width: 50px
        }
        #size {
            width: 100px
        }
    </style>
</head>
<body>

<h1>Filesystem Test (Write & Read)</h1>
    <input id="all" type="checkbox"><br/>
    <input id="inmemory" type="checkbox"> InMemory<br/>
    <input id="localstorage" type="checkbox"> LocalStorage<br/>
    <input id="indexedDB" type="checkbox"> IndexedDB<br/>
    <input id="opfs" type="checkbox"> OPFS<br/>
<br/>

Files count: <input id="count" min="1" type="number" value="1"><br/>
Size: <input id="size" type="number" min="0" value="1024"> KB<br/>
Check size  <input id="check_size" type="checkbox" checked="true"><br/><br/>
<button id="runBtn">Run test</button>

<div class="result">
    <h2>Result</h2>
    <table id="resultsTable">
        <thead>
        <tr>
            <th>Backend</th>
            <th>Write (ms)</th>
            <th>Read (ms)</th>
            <th>Info</th>
        </tr>
        </thead>
        <tbody></tbody>
    </table>
</div>

<script>
    const $ = document.querySelector.bind(document);
    const FILENAME = 'test.txt';
    let localStorageFreeSpace = 0
    let FILEDATA = '';

    function addResultRow(name, writeTime, readTime, info) {
        const tbody = document.querySelector('#resultsTable tbody');
        const tr = document.createElement('tr');
        tr.innerHTML = `<td>${name}</td><td>${writeTime}</td><td>${readTime}</td><td>${info}</td>`;
        tbody.appendChild(tr);
    }

    function testMaxMemory() {
        let size = 1024 * 1024; // 1MB
        let buffer = null;
        try {
            while(true) {
                buffer = new Uint8Array(size);
                size *= 2;
            }
        } catch(e) {
            return size / 1024 / 1024;
        }
    }
    function getObjectMB(obj) {
        if(!obj) return 0;

        let bytes = 0;

        if(obj instanceof ArrayBuffer || (typeof obj === 'object' && 'buffer' in obj && obj.buffer instanceof ArrayBuffer)) {
            bytes = obj.byteLength || obj.buffer.byteLength;
        } else if(obj instanceof ArrayBuffer) {
            bytes = obj.byteLength;
        } else if(obj instanceof Blob) {
            bytes = obj.size;
        } else if(typeof obj == 'object') {
            try {
                const str = JSON.stringify(obj);
                bytes = new TextEncoder().encode(str).byteLength;
            } catch(e) {
                console.warn("Невозможно определить размер объекта");
                return 0;
            }
        } else if(typeof obj == 'string') {
            bytes = new TextEncoder().encode(obj).byteLength;
        } else {
            bytes = 8;
        }

        const mb = bytes / (1024 * 1024);
        return Math.round(mb * 10) / 10;
    }
    function getLocalStorageFreeSpace() {
        return new Promise((resolve, reject) => {
            const key = '__localStorageFreeSpaceTest';
            let low = 0;
            let high = 1024 * 1024; // start with 1mb

            function tryWrite(size) {
                try {
                    const str = 'x'.repeat(size);
                    localStorage.setItem(key, str);
                    localStorage.removeItem(key);
                    return true;
                } catch (e) {
                    return false;
                }
            }

            // We increase the upper limit until we reach the limit
            const findUpperLimit = () => {
                if(tryWrite(high)) {
                    high *= 2;
                    setTimeout(findUpperLimit, 0);
                } else {
                    low = high / 2;
                    binarySearch();
                }
            };

            // Binary search
            const binarySearch = () => {
                if(high - low <= 1024) {
                    localStorage.removeItem(key);
                    resolve(Math.floor(high / 1024));
                    return;
                }

                const mid = Math.floor((low + high) / 2);
                if(tryWrite(mid))
                    low = mid;
                else
                    high = mid;

                setTimeout(binarySearch, 0);
            };

            findUpperLimit();
        });
    }
    getLocalStorageFreeSpace().then(e => localStorageFreeSpace = e);

    async function testInMemory() {
        const count = Math.max(0, $('#count').value);
        const checkSize = $('#check_size').checked??false;
        const fs = {};
        let start;

        const info = checkSize ? `Total quota: ${testMaxMemory()} MB` : '';

        start = performance.now();
        for(let i=0;i<count;i++)
            fs[FILENAME+i] = FILEDATA;
        const write = performance.now() - start;

        start = performance.now();
        for(let i=0;i<count;i++){
            const data = fs[FILENAME+i];
        }
        const read = performance.now() - start;

        return { write, read, info };
    }

    async function testLocalStorage() {
        const count = Math.max(0, $('#count').value);
        const checkSize = $('#check_size').checked??false;
        for(let i=0;i<count;i++)
            localStorage.removeItem(FILENAME+i);

        if(getObjectMB(FILEDATA) > 5) throw '';

        const info = checkSize ? `Total quota: ${await getLocalStorageFreeSpace()} MB` : '';

        let start = performance.now();
        for(let i=0;i<count;i++)
            localStorage.setItem(FILENAME+i, FILEDATA);
        const write = performance.now() - start;

        start = performance.now();
        for(let i=0;i<count;i++){
            const data = localStorage.getItem(FILENAME+i);
        }
        const read = performance.now() - start;

        for(let i=0;i<count;i++)
            localStorage.removeItem(FILENAME+i);

        return { write, read, info };
    }

    async function testIndexedDB() {
        const count = Math.max(0, $('#count').value);
        const checkSize = $('#check_size').checked??false;
        const DB_NAME = 'BenchmarkDB';
        const STORE_NAME = 'files';

        return new Promise((resolve) => {
            const req = indexedDB.open(DB_NAME);
            req.onupgradeneeded = (e) => {
                const db = req.result;
                if((!db.objectStoreNames.contains(STORE_NAME))) {
                    db.createObjectStore(STORE_NAME);
                }
            };

            req.onsuccess = (e) => {
                const db = req.result;

                const writeStart = performance.now();
                for(let i=0;i<count;i++){
                    const putReq = db.transaction(STORE_NAME, 'readwrite').objectStore(STORE_NAME).put(FILEDATA, FILENAME);
                    putReq.onsuccess = () => {
                        const write = performance.now() - writeStart;

                        const readStart = performance.now();
                        const getReq = db.transaction(STORE_NAME).objectStore(STORE_NAME).get(FILENAME);
                        getReq.onsuccess = async() => {
                            const read = performance.now() - readStart;
                            if(i == count-1){
                                // Size
                                let info = '';
                                if(checkSize){
                                    if('estimate' in navigator.storage) {
                                        const estimate = await navigator.storage.estimate();
                                        const quota = estimate.quota;
                                        const usage = estimate.usage;

                                        info = `Total quota: ${(quota / (1024 * 1024)).toFixed(2)} MB<br/>Used: ${(usage / (1024 * 1024)).toFixed(2)} MB`;
                                    } else {
                                        info = 'No support(navigator.storage.esimate not exists)';
                                    }
                                }

                                db.close();
                                indexedDB.deleteDatabase(DB_NAME);

                                resolve({ write, read, info });
                            }
                        };
                    };
                }
            };
        });
    }

    async function testOPFS() {
        const count = Math.max(0, $('#count').value);
        const checkSize = $('#check_size').checked??false;
        if((!navigator.storage || !navigator.storage.getDirectory)) {
            throw new Error('OPFS doesnt support');
        }

        const root = await navigator.storage.getDirectory();
        const handles = [];

        // Write
        const writeStart = performance.now();
        for(let i=0;i<count;i++){
            const handle = await root.getFileHandle(FILENAME+i, { create: true });
            handles.push(handle);
            const writable = await handle.createWritable();
            await writable.write(FILEDATA);
            await writable.close();
        }
        const write = performance.now() - writeStart;

        // Read
        const readStart = performance.now();
        for(let i=0;i<count;i++){
            const file = await handles[i].getFile();
            const text = await file.text();
        }
        const read = performance.now() - readStart;

        // Size
        let info = '';
        if(checkSize){
            if('estimate' in navigator.storage) {
                const estimate = await navigator.storage.estimate();
                const quota = estimate.quota;
                const usage = estimate.usage;

                info = `Total quota: ${(quota / (1024 * 1024)).toFixed(2)} MB<br/>Used: ${(usage / (1024 * 1024)).toFixed(2)} MB`;
                // console.log(`Total quota: ${(quota / (1024 * 1024)).toFixed(2)} MB`);
                // console.log(`Used: ${(usage / (1024 * 1024)).toFixed(2)} MB`);
                // console.log(`Remaining: ${((quota - usage) / (1024 * 1024)).toFixed(2)} MB`);
            } else {
                info = 'Size: no support(navigator.storage.esimate not exists)';
            }
        }

        // Erase
        for await(const [name, handle] of root.entries()) {
            if(handle.kind == 'file' && name.startsWith(FILENAME)) {
                await root.removeEntry(name);
            }
        }

        return { write, read, info };
    }

    async function test(){
        let size = parseInt(document.getElementById('size').value ?? 1024);
        if(isNaN(size)) {
            alert('Size is was NaN. Selected size: 1024');
            size = 1024;
        }

        if(size > (1024 * 500)) {
            if(!confirm(`Are you sure you're ready for this size?`)) return;
        }

        try{
            FILEDATA = new Uint8Array(1024 * size)//'A'.repeat(1024 * size);
        }catch{
        }

        $('#runBtn').disabled = true;
        $('#resultsTable').querySelector('tbody').innerHTML = '';

        const inmemory = $('#inmemory').checked;
        const localstorage = $('#localstorage').checked;
        const indexedDB = $('#indexedDB').checked;
        const opfs = $('#opfs').checked;

        try {
            if(inmemory){
                console.log("Testing InMemory...");
                const mem = await testInMemory();
                addResultRow("InMemory", mem.write.toFixed(2), mem.read.toFixed(2), mem.info);
            }

            if(localstorage) try{
                console.log("Testing LocalStorage...");
                const local = await testLocalStorage();
                addResultRow("LocalStorage", local.write.toFixed(2), local.read.toFixed(2), local.info);
            }catch(e){
                console.error(e);
                addResultRow("LocalStorage", '-', '-', `Error(limit ${localStorageFreeSpace}MB)`);
            }

            if(indexedDB){
                console.log("Testing IndexedDB...");
                const idb = await testIndexedDB();
                addResultRow("IndexedDB", idb.write.toFixed(2), idb.read.toFixed(2), idb.info);
            }

            if(opfs) if(('storage' in navigator && 'getDirectory' in navigator.storage)) {
                console.log("Testing OPFS...");
                try {
                    const opfs = await testOPFS();
                    addResultRow("OPFS", opfs.write.toFixed(2), opfs.read.toFixed(2), opfs.info);
                } catch(e) {
                    console.error(e);
                    if(location.protocol == 'file:') addResultRow("OPFS", "-", "-", "No support(file://)");
                    else addResultRow("OPFS", "-", "-", "No support");
                }
            } else {
                addResultRow("OPFS", "-", "-", "Doesn't support");
            }
        } finally {
            document.getElementById('runBtn').disabled = false;
        }
    }
    $('#runBtn').addEventListener('click', test);

    const fsb = ['inmemory', 'localstorage', 'indexedDB', 'opfs']
    $('#all').addEventListener('click', () => {
        fsb.forEach(e => $('#'+e).checked = $('#all').checked)
    });

    function dCheckbox(e){
        if(fsb.filter(e => !$("#"+e).checked).length == 0) $("#all").checked = true;
        else $("#all").checked = false;
    }
    fsb.forEach(e => $('#'+e).addEventListener('click', dCheckbox));
    $('#all').click();
</script>

</body>
</html>