GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/11893
[SPARK-14072][core] Show JVM version information when we run a benchmark
program
## What changes were proposed in this pull request?
This PR allows us to identify what JVM is used when someone ran a benchmark
program. In some cases, a JVM version may affect performance result. Thus, it
would be good to show processor information and JVM version information.
```
model name : Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz
JVM information : OpenJDK 64-Bit Server VM,
1.7.0_65-mockbuild_2014_07_14_06_19-b00
Int and String Scan: Best/Avg Time(ms) Rate(M/s) Per
Row(ns) Relative
-------------------------------------------------------------------------------------------
SQL Parquet Vectorized 981 / 994 10.7
93.5 1.0X
SQL Parquet MR 2518 / 2542 4.2
240.1 0.4X
```
```
model name : Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz
JVM information : IBM J9 VM, pxa6480sr2-20151023_01 (SR2)
String Dictionary: Best/Avg Time(ms) Rate(M/s) Per
Row(ns) Relative
-------------------------------------------------------------------------------------------
SQL Parquet Vectorized 693 / 740 15.1
66.1 1.0X
SQL Parquet MR 2501 / 2562 4.2
238.5 0.3X
```
## How was this patch tested?
Tested by using existing benchmark programs
(If this patch involves UI changes, please attach a screenshot; otherwise,
remove this)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark SPARK-14072
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11893.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #11893
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