1<!doctype html>
2<html lang="en-us">
3  <head>
4    <meta charset="utf-8">
5    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
6    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">
7    <link rel="stylesheet" href="common/emscripten.css"/>
8    <link rel="stylesheet" href="common/testing.css"/>
9    <title>speedtest1.wasm Worker</title>
10  </head>
11  <body>
12    <header id='titlebar'>speedtest1.wasm Worker</header>
13    <div>See also: <a href='speedtest1.html'>A main-thread variant of this page.</a></div>
14    <!-- emscripten bits -->
15    <figure id="module-spinner">
16      <div class="spinner"></div>
17      <div class='center'><strong>Initializing app...</strong></div>
18      <div class='center'>
19        On a slow internet connection this may take a moment.  If this
20        message displays for "a long time", intialization may have
21        failed and the JavaScript console may contain clues as to why.
22      </div>
23    </figure>
24    <div class="emscripten" id="module-status">Downloading...</div>
25    <div class="emscripten">
26      <progress value="0" max="100" id="module-progress" hidden='1'></progress>
27    </div><!-- /emscripten bits -->
28    <fieldset id='ui-controls' class='hidden'>
29      <legend>Options</legend>
30      <div id='toolbar'>
31        <div id='toolbar-select'>
32          <select id='select-flags' size='10' multiple></select>
33          <div>The following flags can be passed as URL parameters:
34            vfs=NAME, size=N, journal=MODE, cachesize=BYTES
35          </div>
36        </div>
37        <div class='toolbar-inner-vertical'>
38          <div id='toolbar-selected-flags'></div>
39          <div class='toolbar-inner-vertical'>
40            <span>&rarr; <a id='link-main-thread' href='#' target='speedtest-main'
41                            title='Start speedtest1.html with the selected flags'>speedtest1</a>
42            </span>
43            <span>&rarr; <a id='link-wasmfs' href='#' target='speedtest-wasmfs'
44                            title='Start speedtest1-wasmfs.html with the selected flags'>speedtest1-wasmfs</a>
45            </span>
46            <span>&rarr; <a id='link-kvvfs' href='#' target='speedtest-kvvfs'
47                            title='Start kvvfs speedtest1 with the selected flags'>speedtest1-kvvfs</a>
48            </span>
49          </div>
50        </div>
51        <div class='toolbar-inner-vertical' id='toolbar-runner-controls'>
52          <button id='btn-reset-flags'>Reset Flags</button>
53          <button id='btn-output-clear'>Clear output</button>
54          <button id='btn-run'>Run</button>
55        </div>
56      </div>
57    </fieldset>
58    <div>
59      <span class='input-wrapper'>
60        <input type='checkbox' class='disable-during-eval' id='cb-reverse-log-order' checked></input>
61        <label for='cb-reverse-log-order' id='lbl-reverse-log-order'>Reverse log order</label>
62      </span>
63    </div>
64    <div id='test-output'>
65    </div>
66    <div id='tips'>
67      <strong>Tips:</strong>
68      <ul>
69        <li>Control-click the flags to (de)select multiple flags.</li>
70        <li>The <tt>--big-transactions</tt> flag is important for two
71          of the bigger tests. Without it, those tests create a
72          combined total of 140k implicit transactions, reducing their
73          speed to an absolute crawl, especially when WASMFS is
74          activated.
75        </li>
76        <li>The easiest way to try different optimization levels is,
77          from this directory:
78          <pre>$ rm -f speedtest1.js; make -e emcc_opt='-O2' speedtest1.js</pre>
79          Then reload this page. -O2 seems to consistently produce the fastest results.
80        </li>
81        </ul>
82    </div>
83    <style>
84      #test-output {
85          white-space: break-spaces;
86          overflow: auto;
87      }
88      div#tips { margin-top: 1em; }
89      #toolbar {
90          display: flex;
91          flex-direction: row;
92          flex-wrap: wrap;
93      }
94      #toolbar > * {
95          margin: 0 0.5em;
96      }
97      .toolbar-inner-vertical {
98          display: flex;
99          flex-direction: column;
100          justify-content: space-between;
101      }
102      #toolbar-select {
103          display: flex;
104          flex-direction: column;
105      }
106      .toolbar-inner-vertical > *, #toolbar-select > * {
107          margin: 0.2em 0;
108      }
109      #select-flags > option {
110          white-space: pre;
111          font-family: monospace;
112      }
113      fieldset {
114          border-radius: 0.5em;
115      }
116      #toolbar-runner-controls { flex-grow: 1 }
117      #toolbar-runner-controls > * { flex: 1 0 auto }
118      #toolbar-selected-flags::before {
119        font-family: initial;
120        content:"Selected flags: ";
121      }
122      #toolbar-selected-flags {
123        display: flex;
124        flex-direction: column;
125        font-family: monospace;
126        justify-content: flex-start;
127      }
128    </style>
129    <script>(function(){
130    'use strict';
131    const E = (sel)=>document.querySelector(sel);
132    const eOut = E('#test-output');
133    const log2 = function(cssClass,...args){
134        let ln;
135        if(1 || cssClass){
136            ln = document.createElement('div');
137            if(cssClass) ln.classList.add(cssClass);
138            ln.append(document.createTextNode(args.join(' ')));
139        }else{
140            // This doesn't work with the "reverse order" option!
141            ln = document.createTextNode(args.join(' ')+'\n');
142        }
143        eOut.append(ln);
144    };
145    const log = (...args)=>{
146        //console.log(...args);
147        log2('', ...args);
148    };
149    const logErr = function(...args){
150        console.error(...args);
151        log2('error', ...args);
152    };
153    const logWarn = function(...args){
154        console.warn(...args);
155        log2('warning', ...args);
156    };
157
158    const spacePad = function(str,len=21){
159        if(str.length===len) return str;
160        else if(str.length>len) return str.substr(0,len);
161        const a = []; a.length = len - str.length;
162        return str+a.join(' ');
163    };
164    // OPTION elements seem to ignore white-space:pre, so do this the hard way...
165    const nbspPad = function(str,len=21){
166        if(str.length===len) return str;
167        else if(str.length>len) return str.substr(0,len);
168        const a = []; a.length = len - str.length;
169        return str+a.join('&nbsp;');
170    };
171
172    const W = new Worker("speedtest1-worker.js?sqlite3.dir=jswasm");
173    const mPost = function(msgType,payload){
174        W.postMessage({type: msgType, data: payload});
175    };
176
177    const eFlags = E('#select-flags');
178    const eSelectedFlags = E('#toolbar-selected-flags');
179    const eLinkMainThread = E('#link-main-thread');
180    const eLinkWasmfs = E('#link-wasmfs');
181    const eLinkKvvfs = E('#link-kvvfs');
182    const urlParams = new URL(self.location.href).searchParams;
183    const getSelectedFlags = ()=>{
184        const f = Array.prototype.map.call(eFlags.selectedOptions, (v)=>v.value);
185        [
186            'size', 'vfs', 'journal', 'cachesize'
187        ].forEach(function(k){
188            if(urlParams.has(k)) f.push('--'+k, urlParams.get(k));
189        });
190        return f;
191    };
192    const updateSelectedFlags = function(){
193        eSelectedFlags.innerText = '';
194        const flags = getSelectedFlags();
195        flags.forEach(function(f){
196            const e = document.createElement('span');
197            e.innerText = f;
198            eSelectedFlags.appendChild(e);
199        });
200        const rxStripDash = /^(-+)?/;
201        const comma = flags.join(',');
202        eLinkMainThread.setAttribute('target', 'speedtest1-main-'+comma);
203        eLinkMainThread.href = 'speedtest1.html?flags='+comma;
204        eLinkWasmfs.setAttribute('target', 'speedtest1-wasmfs-'+comma);
205        eLinkWasmfs.href = 'speedtest1-wasmfs.html?flags='+comma;
206        eLinkKvvfs.setAttribute('target', 'speedtest1-kvvfs-'+comma);
207        eLinkKvvfs.href = 'speedtest1.html?vfs=kvvfs&flags='+comma;
208    };
209    eFlags.addEventListener('change', updateSelectedFlags );
210    {
211        const flags = Object.create(null);
212        /* TODO? Flags which require values need custom UI
213           controls and some of them make little sense here
214           (e.g. --script FILE). */
215        flags["--autovacuum"] = "Enable AUTOVACUUM mode";
216        flags["--big-transactions"] = "Important for tests 410 and 510!";
217        //flags["--cachesize"] = "N       Set the cache size to N pages";
218        flags["--checkpoint"] = "Run PRAGMA wal_checkpoint after each test case";
219        flags["--exclusive"] = "Enable locking_mode=EXCLUSIVE";
220        flags["--explain"] = "Like --sqlonly but with added EXPLAIN keywords";
221        //flags["--heap"] = "SZ MIN       Memory allocator uses SZ bytes & min allocation MIN";
222        flags["--incrvacuum"] = "Enable incremenatal vacuum mode";
223        //flags["--journal"] = "M         Set the journal_mode to M";
224        //flags["--key"] = "KEY           Set the encryption key to KEY";
225        //flags["--lookaside"] = "N SZ    Configure lookaside for N slots of SZ bytes each";
226        flags["--memdb"] = "Use an in-memory database";
227        //flags["--mmap"] = "SZ           MMAP the first SZ bytes of the database file";
228        flags["--multithread"] = "Set multithreaded mode";
229        flags["--nomemstat"] = "Disable memory statistics";
230        flags["--nomutex"] = "Open db with SQLITE_OPEN_NOMUTEX";
231        flags["--nosync"] = "Set PRAGMA synchronous=OFF";
232        flags["--notnull"] = "Add NOT NULL constraints to table columns";
233        //flags["--output"] = "FILE       Store SQL output in FILE";
234        //flags["--pagesize"] = "N        Set the page size to N";
235        //flags["--pcache"] = "N SZ       Configure N pages of pagecache each of size SZ bytes";
236        //flags["--primarykey"] = "Use PRIMARY KEY instead of UNIQUE where appropriate";
237        //flags["--repeat"] = "N          Repeat each SELECT N times (default: 1)";
238        flags["--reprepare"] = "Reprepare each statement upon every invocation";
239        //flags["--reserve"] = "N         Reserve N bytes on each database page";
240        //flags["--script"] = "FILE       Write an SQL script for the test into FILE";
241        flags["--serialized"] = "Set serialized threading mode";
242        flags["--singlethread"] = "Set single-threaded mode - disables all mutexing";
243        flags["--sqlonly"] = "No-op.  Only show the SQL that would have been run.";
244        flags["--shrink-memory"] = "Invoke sqlite3_db_release_memory() frequently.";
245        //flags["--size"] = "N            Relative test size.  Default=100";
246        flags["--strict"] = "Use STRICT table where appropriate";
247        flags["--stats"] = "Show statistics at the end";
248        //flags["--temp"] = "N            N from 0 to 9.  0: no temp table. 9: all temp tables";
249        //flags["--testset"] = "T         Run test-set T (main, cte, rtree, orm, fp, debug)";
250        flags["--trace"] = "Turn on SQL tracing";
251        //flags["--threads"] = "N         Use up to N threads for sorting";
252        /*
253          The core API's WASM build does not support UTF16, but in
254          this app it's not an issue because the data are not crossing
255          JS/WASM boundaries.
256        */
257        flags["--utf16be"] = "Set text encoding to UTF-16BE";
258        flags["--utf16le"] = "Set text encoding to UTF-16LE";
259        flags["--verify"] = "Run additional verification steps.";
260        flags["--without"] = "rowid     Use WITHOUT ROWID where appropriate";
261        const preselectedFlags = [
262            '--big-transactions',
263            '--singlethread'
264        ];
265        if(urlParams.has('flags')){
266            preselectedFlags.push(...urlParams.get('flags').split(','));
267        }
268        if('opfs'!==urlParams.get('vfs')){
269            preselectedFlags.push('--memdb');
270        }
271        Object.keys(flags).sort().forEach(function(f){
272            const opt = document.createElement('option');
273            eFlags.appendChild(opt);
274            const lbl = nbspPad(f)+flags[f];
275            //opt.innerText = lbl;
276            opt.innerHTML = lbl;
277            opt.value = f;
278            if(preselectedFlags.indexOf(f) >= 0) opt.selected = true;
279        });
280        const cbReverseLog = E('#cb-reverse-log-order');
281        const lblReverseLog = E('#lbl-reverse-log-order');
282        if(cbReverseLog.checked){
283            lblReverseLog.classList.add('warning');
284            eOut.classList.add('reverse');
285        }
286        cbReverseLog.addEventListener('change', function(){
287            if(this.checked){
288                eOut.classList.add('reverse');
289                lblReverseLog.classList.add('warning');
290            }else{
291                eOut.classList.remove('reverse');
292                lblReverseLog.classList.remove('warning');
293            }
294        }, false);
295        updateSelectedFlags();
296    }
297    E('#btn-output-clear').addEventListener('click', ()=>{
298        eOut.innerText = '';
299    });
300    E('#btn-reset-flags').addEventListener('click',()=>{
301        eFlags.value = '';
302        updateSelectedFlags();
303    });
304    E('#btn-run').addEventListener('click',function(){
305        log("Running speedtest1. UI controls will be disabled until it completes.");
306        mPost('run', getSelectedFlags());
307    });
308
309    const eControls = E('#ui-controls');
310    /** Update Emscripten-related UI elements while loading the module. */
311    const updateLoadStatus = function f(text){
312        if(!f.last){
313            f.last = { text: '', step: 0 };
314            const E = (cssSelector)=>document.querySelector(cssSelector);
315            f.ui = {
316                status: E('#module-status'),
317                progress: E('#module-progress'),
318                spinner: E('#module-spinner')
319            };
320        }
321        if(text === f.last.text) return;
322        f.last.text = text;
323        if(f.ui.progress){
324            f.ui.progress.value = f.last.step;
325            f.ui.progress.max = f.last.step + 1;
326        }
327        ++f.last.step;
328        if(text) {
329            f.ui.status.classList.remove('hidden');
330            f.ui.status.innerText = text;
331        }else{
332            if(f.ui.progress){
333                f.ui.progress.remove();
334                f.ui.spinner.remove();
335                delete f.ui.progress;
336                delete f.ui.spinner;
337            }
338            f.ui.status.classList.add('hidden');
339        }
340    };
341
342    W.onmessage = function(msg){
343        msg = msg.data;
344        switch(msg.type){
345            case 'ready':
346                log("Worker is ready.");
347                eControls.classList.remove('hidden');
348                break;
349            case 'stdout': log(msg.data); break;
350            case 'stdout': logErr(msg.data); break;
351            case 'run-start':
352                eControls.disabled = true;
353                log("Running speedtest1 with argv =",msg.data.join(' '));
354                break;
355            case 'run-end':
356                log("speedtest1 finished.");
357                eControls.disabled = false;
358                // app output is in msg.data
359                break;
360            case 'error': logErr(msg.data); break;
361            case 'load-status': updateLoadStatus(msg.data); break;
362            default:
363                logErr("Unhandled worker message type:",msg);
364                break;
365        }
366    };
367})();</script>
368  </body>
369</html>
370