[IMP] tools: rework benchmarks application

closes #130

tools/benchmarks/shared/main.css

@@ -1,26 +1,91 @@
-.main {
-  position: absolute;
-  left: 0;
-  right: 0;
-  top: 0;
-  bottom: 0;
+html,
+body {
+  height: 100%;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
+    Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Arial,
+    sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+}
 
+body {
+    margin: 0;
+}
+.main {
+  height: 100%;
+
+  font-size: 14px;
   display: grid;
-  grid-template-columns: 220px 1fr;
+  grid-template-columns: 640px 1fr;
 }
 
 .left-thing {
   background-color: gray;
-  padding: 20px;
   color: white;
+  display: flex;
+  flex-direction: column;
 }
 
-.left-thing button {
-  width: 100%;
+.left-thing hr {
+    width: 100%;
+    flex: 0 0 auto;
+}
+
+.title {
+  padding: 10px;
+  font-size: 20px;
+  font-weight: bold;
+  flex: 0 0 auto;
+}
+
+.panel {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: flex-start;
+  flex: 0 0 auto;
+}
+
+.panel button {
+  flex: 0 0 32%;
+  height: 32px;
+  margin-top: 4px;
+  margin-bottom: 4px;
+  font-size: 14px;
+  margin-left: 3px;
+  margin-right: 3px;
+}
+
+.info {
+  padding: 10px;
+  flex: 0 0 auto;
+}
+
+.flags {
+    padding: 10px;
+}
+.log {
+    flex: 1 1 auto;
+    position: relative;
+}
+
+.log-content {
+    position: absolute;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0;
+    overflow: auto;
+}
+
+.bold {
+  font-weight: bold;
+}
+
+.clear-log {
+    font-size: 14px;
+    color: #eeeeee;
+    cursor: pointer;
 }
 
 .right-thing {
-  padding: 20px;
   overflow: auto;
 }
 

tools/benchmarks/shared/utils.js

@@ -31,19 +31,28 @@ export function buildData(n = 1000) {
 //------------------------------------------------------------------------------
 // Measuring helpers
 //------------------------------------------------------------------------------
+export function formatNumber(n) {
+    return Number(n).toFixed();
+}
+
 let startTime;
 let lastMeasure;
 export function startMeasure(descr) {
   startTime = performance.now();
   lastMeasure = descr;
 }
-export function stopMeasure() {
+export function stopMeasure(cb) {
   let last = lastMeasure;
   if (lastMeasure) {
     window.setTimeout(function() {
       lastMeasure = null;
       const stop = performance.now();
-      console.log(`[${last}] took  ${Number(stop - startTime).toFixed()}ms`);
+      const delta = stop - startTime;
+      const msg = `[${last}] took  ${formatNumber(delta)}ms`;
+      console.log(msg);
+      if (cb) {
+          cb({msg, delta});
+      }
     }, 0);
   }
 }