GitHub user ericl opened a pull request:
https://github.com/apache/spark/pull/13934
[SPARK-16238] Metrics for generated method and class bytecode size
## What changes were proposed in this pull request?
This extends SPARK-15860 to include metrics for the actual bytecode size of
janino-generated methods. They can be accessed in the same way as any other
codahale metric, e.g.
```
scala>
org.apache.spark.metrics.source.CodegenMetrics.METRIC_GENERATED_CLASS_BYTECODE_SIZE.getSnapshot().getValues()
res7: Array[Long] = Array(532, 532, 532, 542, 1479, 2670, 3585, 3585)
scala>
org.apache.spark.metrics.source.CodegenMetrics.METRIC_GENERATED_METHOD_BYTECODE_SIZE.getSnapshot().getValues()
res8: Array[Long] = Array(5, 5, 5, 5, 10, 10, 10, 10, 15, 15, 15, 38, 63,
79, 88, 94, 94, 94, 132, 132, 165, 165, 220, 220)
```
## How was this patch tested?
Small unit test, also verified manually that the performance impact is
minimal (<10%). @hvanhovell
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ericl/spark spark-16238
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13934.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 #13934
----
commit 2a8887c72ae2f6e5064c67e883ebbf9b0fcdf081
Author: Eric Liang <[email protected]>
Date: 2016-06-28T00:44:31Z
Mon Jun 27 17:44:31 PDT 2016
commit 42e9d51d2f1003999b4a9407bbbabf180f64e5ba
Author: Eric Liang <[email protected]>
Date: 2016-06-28T00:49:32Z
Mon Jun 27 17:49:32 PDT 2016
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