perf_hooks: multiple fixes for Histogram

* The createHistogram(options) options weren't actually implemented * Add a new count property that tracks the number of samples * Adds BigInt options for relevant properties * Adds add(other) method for RecordableHistogram * Cleans up and expands tests * Eliminates unnecessary ELDHistogram native class * Improve/Simplify histogram transfer impl Signed-off-by: James M Snell <jasnell@gmail.com> perf_hooks: simplify Histogram constructor options Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: #41153 Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
nodejs · Jan 14, 2022 · 27c6191 · 27c6191
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diff --git a/doc/api/perf_hooks.md b/doc/api/perf_hooks.md
@@ -817,10 +817,11 @@ added:
 -->
 
 * `options` {Object}
-  * `min` {number|bigint} The minimum recordable value. Must be an integer
+  * `lowest` {number|bigint} The lowest discernible value. Must be an integer
     value greater than 0. **Default:** `1`.
-  * `max` {number|bigint} The maximum recordable value. Must be an integer
-    value greater than `min`. **Default:** `Number.MAX_SAFE_INTEGER`.
+  * `highest` {number|bigint} The highest recordable value. Must be an integer
+    value that is equal to or greater than two times `min`.
+    **Default:** `Number.MAX_SAFE_INTEGER`.
   * `figures` {number} The number of accuracy digits. Must be a number between
     `1` and `5`. **Default:** `3`.
 * Returns {RecordableHistogram}
@@ -870,6 +871,26 @@ console.log(h.percentile(99));
 added: v11.10.0
 -->
 
+### `histogram.count`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* {number}
+
+The number of samples recorded by the histogram.
+
+### `histogram.countBigInt`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* {bigint}
+
+The number of samples recorded by the histogram.
+
 ### `histogram.exceeds`
 
 <!-- YAML
@@ -881,6 +902,17 @@ added: v11.10.0
 The number of times the event loop delay exceeded the maximum 1 hour event
 loop delay threshold.
 
+### `histogram.exceedsBigInt`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* {bigint}
+
+The number of times the event loop delay exceeded the maximum 1 hour event
+loop delay threshold.
+
 ### `histogram.max`
 
 <!-- YAML
@@ -891,6 +923,16 @@ added: v11.10.0
 
 The maximum recorded event loop delay.
 
+### `histogram.maxBigInt`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* {bigint}
+
+The maximum recorded event loop delay.
+
 ### `histogram.mean`
 
 <!-- YAML
@@ -911,6 +953,16 @@ added: v11.10.0
 
 The minimum recorded event loop delay.
 
+### `histogram.minBigInt`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* {bigint}
+
+The minimum recorded event loop delay.
+
 ### `histogram.percentile(percentile)`
 
 <!-- YAML
@@ -922,6 +974,17 @@ added: v11.10.0
 
 Returns the value at the given percentile.
 
+### `histogram.percentileBigInt(percentile)`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* `percentile` {number} A percentile value in the range (0, 100).
+* Returns: {bigint}
+
+Returns the value at the given percentile.
+
 ### `histogram.percentiles`
 
 <!-- YAML
@@ -932,6 +995,16 @@ added: v11.10.0
 
 Returns a `Map` object detailing the accumulated percentile distribution.
 
+### `histogram.percentilesBigInt`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* {Map}
+
+Returns a `Map` object detailing the accumulated percentile distribution.
+
 ### `histogram.reset()`
 
 <!-- YAML
@@ -990,6 +1063,16 @@ added:
   - v14.18.0
 -->
 
+### `histogram.add(other)`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* `other` {RecordableHistogram}
+
+Adds the values from `other` to this histogram.
+
 ### `histogram.record(val)`
 
 <!-- YAML