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new a150ce3 Add more platform results for exp(z)
a150ce3 is described below
commit a150ce3f7637f57e4cf017bdd8c3ce2180dc39fc
Author: Alex Herbert <[email protected]>
AuthorDate: Sat Aug 28 10:46:04 2021 +0100
Add more platform results for exp(z)
---
.../sampling/distribution/ZigguratSamplerPerformance.java | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git
a/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/examples/jmh/sampling/distribution/ZigguratSamplerPerformance.java
b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/examples/jmh/sampling/distribution/ZigguratSamplerPerformance.java
index 0455a26..f517b44 100644
---
a/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/examples/jmh/sampling/distribution/ZigguratSamplerPerformance.java
+++
b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/examples/jmh/sampling/distribution/ZigguratSamplerPerformance.java
@@ -4017,13 +4017,15 @@ public class ZigguratSamplerPerformance {
* Benchmark methods for obtaining {@code exp(z)} when {@code -8 <= z <=
0}.
*
* <p>Note: This is disabled. On JDK 8 FastMath is faster. On JDK 11
Math.exp is
- * a hotspot intrinsic and is faster. Example result:
+ * a hotspot intrinsic and may be faster based on the platform
architecture.
+ * Example results:
*
* <pre>
- * JDK 8 JDK 11
- * noop 4.523 4.351
- * Math.exp 61.350 22.552
- * FastMath.exp 33.858 31.396
+ * JDK 8 JDK 11
+ * i7-6820HQ E5-1680 i7-6820HQ E5-1680
3960X
+ * noop 4.523 3.871 4.351 4.206
3.936
+ * Math.exp 61.350 48.519 22.552 19.195
12.568
+ * FastMath.exp 33.858 24.469 31.396 24.568
11.159
* </pre>
*
* <p>The ziggurat sampler avoids calls to Math.exp in the majority of
cases
