tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 0456101cecee8fd1c9b0ee2b5115a44975099f27..c12b2bdf4eb0d8835b52ba143b8e05a9c94dfe3b 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -71928,6 +71928,13 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="V8.AsmWasmTranslationMicroSeconds" units="microseconds">

[Ilya Sherman, 2017/02/02 00:28:57]

Optional nit: I'd s/MicroSeconds/Duration in the name.  The units are already
specified elsewhere.

[bradn, 2017/02/02 00:38:55]

These mirror several of the others V8 side (and I'd need to cherrypick to get
for M57 at this point). Will note for future reference.

+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <owner>aseemgarg@chromium.org</owner>
+  <summary>Time to convert asm.js code to WebAssembly in microseconds.</summary>

[Ilya Sherman, 2017/02/02 00:28:57]

Optional nit: I'd include a comma before "in microseconds"; or perhaps just omit
it altogether, since it's listed in the units attribute.

[bradn, 2017/02/02 00:38:55]

Done.

+</histogram>
+
 <histogram name="V8.ASTOptimization">
   <obsolete>
     This histogram is no longer present in V8.
@@ -72566,6 +72573,86 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <summary>TBD</summary>
 </histogram>
 
+<histogram name="V8.WasmCompileFunctionMicroSeconds" units="microseconds">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Time to compile a WebAssembly function in microseconds.</summary>
+</histogram>
+
+<histogram name="V8.WasmCompileFunctionPeakMemoryBytes" units="bytes">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>
+    Peak memory used to compile a WebAssembly function in bytes.
+  </summary>
+</histogram>
+
+<histogram name="V8.WasmCompileModuleMicroSeconds" units="microseconds">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Time to compile a WebAssembly module in microseconds.</summary>
+</histogram>
+
+<histogram name="V8.WasmDecodeFunctionMicroSeconds" units="microseconds">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Time to decode a WebAssembly function in microseconds.</summary>
+</histogram>
+
+<histogram name="V8.WasmDecodeModuleMicroSeconds" units="microseconds">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Time to decode a WebAssembly module in microseconds.</summary>
+</histogram>
+
+<histogram name="V8.WasmDecodeModulePeakMemoryBytes" units="bytes">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Peak memory used to decode a WebAssembly module in bytes.</summary>
+</histogram>
+
+<histogram name="V8.WasmFunctionSizeBytes" units="bytes">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Size of a WebAssembly function in bytes.</summary>
+</histogram>
+
+<histogram name="V8.WasmFunctionsPerModule" units="functions">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Function count in each WebAssembly module.</summary>
+</histogram>
+
+<histogram name="V8.WasmInstantiateModuleMicroSeconds" units="microseconds">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Time to instantiate a WebAssembly module in microseconds.</summary>
+</histogram>
+
+<histogram name="V8.WasmMaxMemPagesCount" units="pages">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>
+    Number of 64KiB pages a WebAssembly module declares as its maximum
+    requirement.
+  </summary>
+</histogram>
+
+<histogram name="V8.WasmMinMemPagesCount" units="pages">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>
+    Number of 64KiB pages a WebAssembly module declares as its minimum
+    requirement.
+  </summary>
+</histogram>
+
+<histogram name="V8.WasmModuleSizeBytes" units="bytes">
+  <owner>bradnelson@chromium.org</owner>
+  <owner>titzer@chromium.org</owner>
+  <summary>Size of a WebAssembly module in bytes.</summary>
+</histogram>
+
 <histogram name="Variations.CreateTrials.SeedExpiry"
     enum="VariationsSeedExpiry">
   <owner>asvitkine@chromium.org</owner>